316 Stainless Steel Weight Calculator
Accurately determine the weight of your 316 stainless steel materials.
Steel Weight Calculator
Sheet/Plate
Round Bar
Round Tube (Seamless)
Select the shape of your 316 stainless steel.
Enter the length of the steel component (mm).
Enter the number of pieces.
Calculation Results
0.00 kg
Weight per Piece: 0.00 kg
Total Volume: 0.00 cm³
Density Used: 8.0 g/cm³
Formula Explained
The weight of 316 stainless steel is calculated using its volume and density. The general formula is: Weight = Volume × Density. The specific volume calculation depends on the shape of the material.
For Sheets/Plates: Volume = Length × Width × Thickness
For Bars: Volume = π × (Diameter/2)² × Length
For Tubes: Volume = π × ((Outer Diameter/2)² – (Inner Diameter/2)²) × Length
The density of 316 stainless steel is approximately 8.0 g/cm³ (or 8000 kg/m³).
Weight vs. Length for Different Quantities
| Item | Value | Unit |
|---|---|---|
| Length | 0 | mm |
| Width (Sheet/Plate) | N/A | mm |
| Thickness (Sheet/Plate) | N/A | mm |
| Diameter (Bar/Tube) | N/A | mm |
| Outer Diameter (Tube) | N/A | mm |
| Inner Diameter (Tube) | N/A | mm |
| Quantity | 0 | – |
| Volume per Piece | 0.00 | cm³ |
| Weight per Piece | 0.00 | kg |
| Total Weight | 0.00 | kg |
Understanding the 316 Stainless Steel Weight Calculator
What is the 316 Stainless Steel Weight Calculator?
The 316 stainless steel weight calculator is an essential online tool designed to precisely compute the mass of 316 stainless steel based on its dimensions and shape. This sophisticated 316 stainless steel weight calculator simplifies complex geometric calculations, providing users with instant weight estimations crucial for material procurement, project budgeting, shipping logistics, and structural integrity assessments. It caters to a wide range of applications, from small custom fabrications to large industrial projects. Anyone working with 316 stainless steel, including engineers, fabricators, procurement managers, architects, and DIY enthusiasts, can benefit from using this 316 stainless steel weight calculator. A common misconception is that all stainless steels weigh the same; however, different alloys, while having similar densities, can vary slightly. This 316 stainless steel weight calculator specifically targets the properties of the popular 316 grade.
316 Stainless Steel Weight Calculator Formula and Mathematical Explanation
The core principle behind the 316 stainless steel weight calculator is the fundamental relationship between an object's volume, its density, and its mass (weight). The formula is straightforward: Weight = Volume × Density. To use this 316 stainless steel weight calculator effectively, we first need to determine the volume of the steel component, which is entirely dependent on its geometric shape. Once the volume is calculated, it's multiplied by the density of 316 stainless steel to yield the weight.
Step-by-Step Derivation:
- Determine Material Shape: The user selects the shape (Sheet/Plate, Round Bar, or Round Tube).
- Input Dimensions: Relevant dimensions (e.g., length, width, thickness, diameter) are entered by the user.
- Calculate Volume: The calculator applies the appropriate geometric formula for the selected shape to find the volume.
- Sheet/Plate Volume: Length × Width × Thickness
- Round Bar Volume: π × (Radius)² × Length = π × (Diameter/2)² × Length
- Round Tube Volume: Volume of Outer Cylinder – Volume of Inner Cylinder = [π × (Outer Radius)² × Length] – [π × (Inner Radius)² × Length] = π × [(Outer Diameter/2)² – (Inner Diameter/2)²] × Length
- Apply Density: The calculated volume is multiplied by the standard density of 316 stainless steel.
- Calculate Total Weight: The weight per piece is multiplied by the quantity entered by the user.
Variable Explanations:
The 316 stainless steel weight calculator utilizes the following variables:
| Variable | Meaning | Unit | Typical Range / Notes |
|---|---|---|---|
| Shape | The geometric form of the 316 stainless steel material. | N/A | Sheet/Plate, Round Bar, Round Tube |
| Length (L) | The longest dimension of the steel component. | mm | > 0 mm |
| Width (W) | The dimension perpendicular to length for sheets/plates. | mm | > 0 mm (for Sheets/Plates) |
| Thickness (T) | The smallest dimension for sheets/plates. | mm | > 0 mm (for Sheets/Plates) |
| Diameter (D) | The diameter of a round bar. | mm | > 0 mm (for Round Bars) |
| Outer Diameter (OD) | The external diameter of a round tube. | mm | > 0 mm (for Round Tubes) |
| Inner Diameter (ID) | The internal diameter of a round tube. | mm | 0 mm ≤ ID < OD (for Round Tubes) |
| Quantity (Q) | The number of identical steel pieces. | – | ≥ 1 |
| Density (ρ) | Mass per unit volume of 316 stainless steel. | g/cm³ (or kg/m³) | Approximately 8.0 g/cm³ (8000 kg/m³) |
| Volume (V) | The space occupied by the steel material. | cm³ | Calculated based on shape and dimensions. |
| Weight (W) | The mass of the steel material. | kg | Calculated result. |
Practical Examples (Real-World Use Cases)
The 316 stainless steel weight calculator is invaluable for various practical scenarios:
Example 1: Calculating Weight for a Stainless Steel Sheet
A marine fabrication company needs to order a custom sheet of 316 stainless steel for a boat's deck fittings. They require a piece with the following dimensions:
- Shape: Sheet/Plate
- Length: 1200 mm
- Width: 600 mm
- Thickness: 3 mm
- Quantity: 2 pieces
Using the 316 stainless steel weight calculator:
- Volume per piece = 1200 mm × 600 mm × 3 mm = 2,160,000 mm³
- Convert volume to cm³: 2,160,000 mm³ / (10 mm/cm)³ = 2160 cm³
- Weight per piece = 2160 cm³ × 8.0 g/cm³ = 17280 g = 17.28 kg
- Total Weight = 17.28 kg/piece × 2 pieces = 34.56 kg
Interpretation: The fabricator knows they need to procure approximately 34.56 kg of 316 stainless steel for this job, aiding in accurate material ordering and cost estimation. This precise calculation using the 316 stainless steel weight calculator avoids costly over-ordering or under-ordering.
Example 2: Calculating Weight for Stainless Steel Round Bars
An architect is specifying stainless steel handrails for a commercial building's exterior staircase. The design calls for:
- Shape: Round Bar
- Diameter: 50 mm
- Length: 2500 mm
- Quantity: 10 bars
Using the 316 stainless steel weight calculator:
- Radius = Diameter / 2 = 50 mm / 2 = 25 mm
- Volume per piece = π × (25 mm)² × 2500 mm = π × 625 mm² × 2500 mm ≈ 4,908,739 mm³
- Convert volume to cm³: 4,908,739 mm³ / (10 mm/cm)³ ≈ 4908.74 cm³
- Weight per piece = 4908.74 cm³ × 8.0 g/cm³ ≈ 39269.9 g ≈ 39.27 kg
- Total Weight = 39.27 kg/piece × 10 pieces = 392.7 kg
Interpretation: The architect and procurement team can confidently order 392.7 kg of 316 stainless steel round bar, ensuring sufficient material for all handrails while accounting for potential cutting waste. This calculation, powered by the 316 stainless steel weight calculator, is crucial for structural planning and budget adherence.
How to Use This 316 Stainless Steel Weight Calculator
Using the 316 stainless steel weight calculator is designed to be intuitive and efficient. Follow these simple steps:
- Select Material Shape: Choose the correct shape of your 316 stainless steel from the dropdown menu (Sheet/Plate, Round Bar, or Round Tube). The input fields will dynamically adjust to match the selected shape.
- Enter Dimensions: Accurately input the required dimensions for your chosen shape.
- For Sheets/Plates: Enter Length, Width, and Thickness.
- For Round Bars: Enter Diameter and Length.
- For Round Tubes: Enter Outer Diameter, Inner Diameter (or Wall Thickness), and Length.
- Specify Quantity: Enter the number of identical pieces you are calculating for.
- Calculate: Click the "Calculate Weight" button. The calculator will instantly display the results.
- Read Results: The main result shows the total weight for all pieces. Intermediate values like weight per piece and total volume are also provided. The density used (8.0 g/cm³) is displayed for transparency.
- Use Advanced Features:
- Reset: Click "Reset" to clear all fields and return them to default values.
- Copy Results: Click "Copy Results" to copy all calculated values and key assumptions to your clipboard for easy pasting into reports or documents.
Decision-Making Guidance: Use the total weight figure for accurate material ordering, shipping cost estimations, and ensuring your project stays within budget. The weight per piece is useful for tracking individual component handling.
Key Factors That Affect 316 Stainless Steel Weight Calculation Results
While the 316 stainless steel weight calculator provides precise results based on input, several real-world factors can influence the actual weight and the calculation's relevance:
- Dimensional Accuracy: The most significant factor. Slight deviations in actual measured length, width, thickness, or diameter from the input values will directly impact the calculated volume and thus the weight. Using a precise 316 stainless steel weight calculator relies on accurate input.
- Material Density Variation: While 8.0 g/cm³ is the standard density for 316 stainless steel, minor variations can occur due to slight differences in alloy composition and manufacturing processes. This 316 stainless steel weight calculator uses a standard value.
- Tolerances: Manufacturing processes have tolerances. For example, a sheet's thickness might vary slightly across its surface. The calculator assumes uniform dimensions.
- Surface Finish and Coatings: While generally negligible for weight calculations, heavy coatings or surface treatments could add a marginal amount of mass not accounted for by this 316 stainless steel weight calculator.
- Hollow Sections (Advanced): For tubes, the calculator assumes a perfectly uniform wall thickness. Irregularities or variations in the tube's structure could slightly alter the actual weight.
- Cutting and Machining Waste: The calculator determines the weight of the finished piece(s). Actual material procured often needs to be higher to account for scrap generated during cutting, drilling, and machining operations. Understanding the output of a 316 stainless steel weight calculator is the first step in managing this.
- Component Complexity: For very complex or custom shapes not covered by the basic geometry (sheet, bar, tube), a more specialized calculation method or software might be required. This 316 stainless steel weight calculator is best for standard forms.
Frequently Asked Questions (FAQ)
-
What is the standard density of 316 stainless steel?
The standard density for 316 stainless steel is approximately 8.0 grams per cubic centimeter (g/cm³), which is equivalent to 8000 kilograms per cubic meter (kg/m³). Our 316 stainless steel weight calculator uses this value. -
Does the calculator account for imperial units (inches, feet)?
No, this specific 316 stainless steel weight calculator is designed to work with metric units (millimeters for dimensions, grams/kilograms for weight). You would need to convert your imperial measurements to millimeters before inputting them. -
How accurate is the 316 stainless steel weight calculator?
The calculator is highly accurate based on the provided geometric formulas and the standard density of 316 stainless steel. Accuracy depends on the precision of the input dimensions and the uniformity of the actual material. -
Can I calculate the weight for custom shapes like square tubes or I-beams?
This 316 stainless steel weight calculator currently supports Sheet/Plate, Round Bar, and Round Tube. For other shapes, you would need to calculate the volume using their specific geometric formulas and then use the density (8.0 g/cm³) to find the weight. -
What's the difference between 316 and other stainless steel grades regarding weight?
The difference in weight between various stainless steel grades (like 304 vs. 316) is usually minimal because their densities are very similar. The primary differences lie in their chemical composition, corrosion resistance, and mechanical properties. Our 316 stainless steel weight calculator uses a density common to many austenitic stainless steels. -
Why is the calculator providing results in kilograms?
Kilograms (kg) are the standard unit for mass in the metric system and are widely used in industrial and commercial contexts for specifying material quantities. The calculator converts the calculated mass (initially in grams based on cm³ volume and g/cm³ density) to kilograms for convenience. -
Does the calculator include the weight of any protective coatings?
No, the calculator determines the weight of the pure 316 stainless steel material only. It does not account for any additional weight from potential coatings, paint, or plating. -
How can I use the results for project budgeting?
The total weight calculated is a key input for determining material costs. You can multiply the total weight by the cost per kilogram of 316 stainless steel from your supplier to get an accurate material budget estimate. The 316 stainless steel weight calculator helps prevent underestimations.
Related Tools and Internal Resources
- Stainless Steel Properties Guide Explore the detailed physical and chemical properties of various stainless steel grades.
- Material Cost Estimator Estimate the cost of different metal materials based on weight and market prices.
- Sheet Metal Thickness Calculator Calculate conversions and equivalencies for sheet metal thicknesses.
- Corrosion Resistance Chart Compare the corrosion resistance of different stainless steel alloys in various environments.
- Tube Wall Thickness Calculator Determine tube dimensions and related properties.
- Custom Steel Fabrication Services Find providers for custom stainless steel fabrication projects.
Enter the width of the sheet/plate (mm).
Enter the thickness of the sheet/plate (mm).
`;
document.getElementById("tableWidth").closest('tr').style.display = ";
document.getElementById("tableThickness").closest('tr').style.display = ";
document.getElementById("tableDiameter").closest('tr').style.display = 'none';
document.getElementById("tableOD").closest('tr').style.display = 'none';
document.getElementById("tableID").closest('tr').style.display = 'none';
document.getElementById("width").focus();
} else if (shape === "bar") {
dimensionsHtml = `
Enter the diameter of the round bar (mm).
`;
document.getElementById("tableDiameter").closest('tr').style.display = ";
document.getElementById("tableWidth").closest('tr').style.display = 'none';
document.getElementById("tableThickness").closest('tr').style.display = 'none';
document.getElementById("tableOD").closest('tr').style.display = 'none';
document.getElementById("tableID").closest('tr').style.display = 'none';
document.getElementById("diameter").focus();
} else if (shape === "tube") {
dimensionsHtml = `
Enter the outer diameter of the tube (mm).
Enter the inner diameter of the tube (mm).
`;
document.getElementById("tableOD").closest('tr').style.display = ";
document.getElementById("tableID").closest('tr').style.display = ";
document.getElementById("tableDiameter").closest('tr').style.display = 'none';
document.getElementById("tableWidth").closest('tr').style.display = 'none';
document.getElementById("tableThickness").closest('tr').style.display = 'none';
document.getElementById("outerDiameter").focus();
}
document.getElementById("dimensions-input").innerHTML = dimensionsHtml;
calculateWeight(); // Recalculate after changing inputs
}
function validateInput(id, value, isRequired = true, min = null, max = null) {
var errorElement = document.getElementById(id + "Error");
errorElement.innerText = "";
errorElement.classList.remove("visible");
var inputElement = document.getElementById(id);
if (isRequired && (value === null || value === "")) {
errorElement.innerText = "This field is required.";
errorElement.classList.add("visible");
inputElement.style.borderColor = "#dc3545";
return false;
}
var numberValue = parseFloat(value);
if (isNaN(numberValue)) {
errorElement.innerText = "Please enter a valid number.";
errorElement.classList.add("visible");
inputElement.style.borderColor = "#dc3545";
return false;
}
if (numberValue < 0) {
errorElement.innerText = "Value cannot be negative.";
errorElement.classList.add("visible");
inputElement.style.borderColor = "#dc3545";
return false;
}
if (min !== null && numberValue max) {
errorElement.innerText = "Value cannot exceed " + max + ".";
errorElement.classList.add("visible");
inputElement.style.borderColor = "#dc3545";
return false;
}
inputElement.style.borderColor = "#ccc"; // Default border color
return true;
}
function calculateWeight() {
var shape = document.getElementById("materialShape").value;
var length = parseFloat(document.getElementById("length").value);
var quantity = parseFloat(document.getElementById("quantity").value);
var volumePerPiece = 0;
var weightPerPiece = 0;
var totalVolumeCm3 = 0;
var totalWeightKg = 0;
var isValid = true;
// Validate common fields first
if (!validateInput("length", length)) isValid = false;
if (!validateInput("quantity", quantity, true, 1)) isValid = false;
// Validate shape-specific dimensions
if (shape === "sheet") {
var width = parseFloat(document.getElementById("width").value);
var thickness = parseFloat(document.getElementById("thickness").value);
if (!validateInput("width", width)) isValid = false;
if (!validateInput("thickness", thickness)) isValid = false;
if (isValid) {
var volumeMm3 = length * width * thickness;
volumePerPiece = volumeMm3 / Math.pow(10, 3); // Convert mm³ to cm³
}
} else if (shape === "bar") {
var diameter = parseFloat(document.getElementById("diameter").value);
if (!validateInput("diameter", diameter)) isValid = false;
if (isValid) {
var radius = diameter / 2;
var volumeMm3 = pi * Math.pow(radius, 2) * length;
volumePerPiece = volumeMm3 / Math.pow(10, 3); // Convert mm³ to cm³
}
} else if (shape === "tube") {
var outerDiameter = parseFloat(document.getElementById("outerDiameter").value);
var innerDiameter = parseFloat(document.getElementById("innerDiameter").value);
if (!validateInput("outerDiameter", outerDiameter)) isValid = false;
if (!validateInput("innerDiameter", innerDiameter)) isValid = false;
if (isValid) {
if (innerDiameter >= outerDiameter) {
document.getElementById("innerDiameterError").innerText = "Inner diameter must be less than outer diameter.";
document.getElementById("innerDiameterError").classList.add("visible");
document.getElementById("innerDiameter").style.borderColor = "#dc3545";
isValid = false;
} else {
document.getElementById("innerDiameter").style.borderColor = "#ccc";
}
}
if (isValid) {
var outerRadius = outerDiameter / 2;
var innerRadius = innerDiameter / 2;
var outerVolumeMm3 = pi * Math.pow(outerRadius, 2) * length;
var innerVolumeMm3 = pi * Math.pow(innerRadius, 2) * length;
var volumeMm3 = outerVolumeMm3 – innerVolumeMm3;
volumePerPiece = volumeMm3 / Math.pow(10, 3); // Convert mm³ to cm³
}
}
if (isValid) {
weightPerPiece = volumePerPiece * density;
totalVolumeCm3 = volumePerPiece * quantity;
totalWeightKg = (weightPerPiece * quantity) / 1000; // Convert grams to kilograms
document.getElementById("main-result").innerText = totalWeightKg.toFixed(2) + " kg";
document.getElementById("weightPerPiece").innerText = weightPerPiece.toFixed(2) + " kg";
document.getElementById("totalVolume").innerText = totalVolumeCm3.toFixed(2) + " cm³";
document.getElementById("densityUsed").innerText = density + " g/cm³";
// Update table
document.getElementById("tableLength").innerText = length.toFixed(2);
document.getElementById("tableQuantity").innerText = quantity;
document.getElementById("tableVolumePiece").innerText = volumePerPiece.toFixed(2);
document.getElementById("tableWeightPiece").innerText = weightPerPiece.toFixed(2);
document.getElementById("tableTotalWeight").innerText = totalWeightKg.toFixed(2);
if (shape === "sheet") {
document.getElementById("tableWidth").innerText = parseFloat(document.getElementById("width").value).toFixed(2);
document.getElementById("tableThickness").innerText = parseFloat(document.getElementById("thickness").value).toFixed(2);
} else if (shape === "bar") {
document.getElementById("tableDiameter").innerText = parseFloat(document.getElementById("diameter").value).toFixed(2);
} else if (shape === "tube") {
document.getElementById("tableOD").innerText = parseFloat(document.getElementById("outerDiameter").value).toFixed(2);
document.getElementById("tableID").innerText = parseFloat(document.getElementById("innerDiameter").value).toFixed(2);
}
} else {
// Reset results if validation failed
document.getElementById("main-result").innerText = "0.00 kg";
document.getElementById("weightPerPiece").innerText = "0.00 kg";
document.getElementById("totalVolume").innerText = "0.00 cm³";
document.getElementById("densityUsed").innerText = density + " g/cm³";
document.getElementById("tableLength").innerText = "N/A";
document.getElementById("tableQuantity").innerText = "N/A";
document.getElementById("tableVolumePiece").innerText = "N/A";
document.getElementById("tableWeightPiece").innerText = "N/A";
document.getElementById("tableTotalWeight").innerText = "N/A";
if (shape === "sheet") {
document.getElementById("tableWidth").innerText = "N/A";
document.getElementById("tableThickness").innerText = "N/A";
} else if (shape === "bar") {
document.getElementById("tableDiameter").innerText = "N/A";
} else if (shape === "tube") {
document.getElementById("tableOD").innerText = "N/A";
document.getElementById("tableID").innerText = "N/A";
}
}
updateChart(quantity);
}
function resetCalculator() {
document.getElementById("materialShape").value = "sheet";
document.getElementById("length").value = "1000";
document.getElementById("quantity").value = "1";
updateInputFields(); // This will re-render specific inputs and call calculateWeight()
// Reset error messages manually if needed, though updateInputFields should handle it
document.getElementById("lengthError").innerText = "";
document.getElementById("quantityError").innerText = "";
document.getElementById("length").style.borderColor = "#ccc";
document.getElementById("quantity").style.borderColor = "#ccc";
document.getElementById("lengthError").classList.remove("visible");
document.getElementById("quantityError").classList.remove("visible");
calculateWeight(); // Ensure results are reset visually
}
function copyResults() {
var mainResult = document.getElementById("main-result").innerText;
var weightPerPiece = document.getElementById("weightPerPiece").innerText;
var totalVolume = document.getElementById("totalVolume").innerText;
var densityUsed = document.getElementById("densityUsed").innerText;
var tableLength = document.getElementById("tableLength").innerText;
var tableQuantity = document.getElementById("tableQuantity").innerText;
var tableVolumePiece = document.getElementById("tableVolumePiece").innerText;
var tableWeightPiece = document.getElementById("tableWeightPiece").innerText;
var tableTotalWeight = document.getElementById("tableTotalWeight").innerText;
var shape = document.getElementById("materialShape").value;
var details = "Shape: " + shape + "\n";
if (shape === "sheet") {
details += "Width: " + document.getElementById("tableWidth").innerText + " mm\n";
details += "Thickness: " + document.getElementById("tableThickness").innerText + " mm\n";
} else if (shape === "bar") {
details += "Diameter: " + document.getElementById("tableDiameter").innerText + " mm\n";
} else if (shape === "tube") {
details += "Outer Diameter: " + document.getElementById("tableOD").innerText + " mm\n";
details += "Inner Diameter: " + document.getElementById("tableID").innerText + " mm\n";
}
details += "Length: " + tableLength + " mm\n";
var textToCopy = "— 316 Stainless Steel Weight Calculation Results —\n\n";
textToCopy += "Primary Result:\n" + mainResult + "\n\n";
textToCopy += "Breakdown:\n";
textToCopy += "- Weight per Piece: " + weightPerPiece + "\n";
textToCopy += "- Total Volume: " + totalVolume + "\n";
textToCopy += "- Density Used: " + densityUsed + "\n\n";
textToCopy += "Detailed Table Data:\n";
textToCopy += "- Length: " + tableLength + " mm\n";
textToCopy += "- Quantity: " + tableQuantity + "\n";
textToCopy += "- Volume per Piece: " + tableVolumePiece + " cm³\n";
textToCopy += "- Weight per Piece: " + tableWeightPiece + " kg\n";
textToCopy += "- Total Weight: " + tableTotalWeight + "\n";
textToCopy += details;
navigator.clipboard.writeText(textToCopy).then(function() {
// Optionally provide feedback to user
var btn = document.querySelector('.btn-copy');
btn.innerText = 'Copied!';
setTimeout(function() {
btn.innerText = 'Copy Results';
}, 1500);
}).catch(function(err) {
console.error('Could not copy text: ', err);
alert('Failed to copy results. Please copy manually.');
});
}
// Charting Logic
var weightChart;
var chartCanvas = document.getElementById('weightChart').getContext('2d');
function updateChart(currentQuantity) {
if (weightChart) {
weightChart.destroy();
}
var lengths = [500, 1000, 1500, 2000, 2500, 3000]; // Sample lengths for the chart
var dataSeries1 = []; // Quantity = 1
var dataSeries2 = []; // Quantity = 2 (example)
var dataSeries3 = []; // Quantity = 5 (example)
var shape = document.getElementById("materialShape").value;
var baseInputs = {};
// Get base dimensions, validate them as well
var baseLength = parseFloat(document.getElementById("length").value);
var baseQuantity = parseFloat(document.getElementById("quantity").value);
var validBase = true;
if (isNaN(baseLength) || baseLength <= 0) validBase = false;
if (isNaN(baseQuantity) || baseQuantity <= 0) validBase = false;
if (shape === "sheet") {
var baseWidth = parseFloat(document.getElementById("width").value);
var baseThickness = parseFloat(document.getElementById("thickness").value);
if (isNaN(baseWidth) || baseWidth <= 0) validBase = false;
if (isNaN(baseThickness) || baseThickness <= 0) validBase = false;
if(validBase) baseInputs = { width: baseWidth, thickness: baseThickness };
} else if (shape === "bar") {
var baseDiameter = parseFloat(document.getElementById("diameter").value);
if (isNaN(baseDiameter) || baseDiameter <= 0) validBase = false;
if(validBase) baseInputs = { diameter: baseDiameter };
} else if (shape === "tube") {
var baseOD = parseFloat(document.getElementById("outerDiameter").value);
var baseID = parseFloat(document.getElementById("innerDiameter").value);
if (isNaN(baseOD) || baseOD <= 0) validBase = false;
if (isNaN(baseID) || baseID = baseOD) validBase = false; // Invalid tube dimensions
if(validBase) baseInputs = { outerDiameter: baseOD, innerDiameter: baseID };
}
if (!validBase) {
// If base inputs are invalid, fill chart with zeros or hide it
for(var i=0; i<lengths.length; i++) {
dataSeries1.push(0);
dataSeries2.push(0);
dataSeries3.push(0);
}
} else {
// Calculate data for different quantities
for (var i = 0; i < lengths.length; i++) {
var currentLength = lengths[i];
var currentVolumePerPiece = 0;
if (shape === "sheet") {
var volumeMm3 = currentLength * baseInputs.width * baseInputs.thickness;
currentVolumePerPiece = volumeMm3 / Math.pow(10, 3);
} else if (shape === "bar") {
var radius = baseInputs.diameter / 2;
var volumeMm3 = pi * Math.pow(radius, 2) * currentLength;
currentVolumePerPiece = volumeMm3 / Math.pow(10, 3);
} else if (shape === "tube") {
var outerRadius = baseInputs.outerDiameter / 2;
var innerRadius = baseInputs.innerDiameter / 2;
var outerVolumeMm3 = pi * Math.pow(outerRadius, 2) * currentLength;
var innerVolumeMm3 = pi * Math.pow(innerRadius, 2) * currentLength;
var volumeMm3 = outerVolumeMm3 – innerVolumeMm3;
currentVolumePerPiece = volumeMm3 / Math.pow(10, 3);
}
dataSeries1.push((currentVolumePerPiece * density / 1000).toFixed(2)); // Weight in kg for quantity 1
dataSeries2.push((currentVolumePerPiece * density * 2 / 1000).toFixed(2)); // Weight in kg for quantity 2
dataSeries3.push((currentVolumePerPiece * density * 5 / 1000).toFixed(2)); // Weight in kg for quantity 5
}
}
weightChart = new Chart(chartCanvas, {
type: 'line',
data: {
labels: lengths.map(function(l) { return l + ' mm'; }), // X-axis labels: Length
datasets: [{
label: 'Weight (Qty: 1)',
data: dataSeries1,
borderColor: '#004a99',
backgroundColor: 'rgba(0, 74, 153, 0.1)',
fill: false,
tension: 0.1
}, {
label: 'Weight (Qty: 2)',
data: dataSeries2,
borderColor: '#28a745',
backgroundColor: 'rgba(40, 167, 69, 0.1)',
fill: false,
tension: 0.1
}, {
label: 'Weight (Qty: 5)',
data: dataSeries3,
borderColor: '#ffc107',
backgroundColor: 'rgba(255, 193, 7, 0.1)',
fill: false,
tension: 0.1
}]
},
options: {
responsive: true,
maintainAspectRatio: true,
scales: {
y: {
beginAtZero: true,
title: {
display: true,
text: 'Weight (kg)'
}
},
x: {
title: {
display: true,
text: 'Length (mm)'
}
}
},
plugins: {
legend: {
position: 'top',
},
title: {
display: false,
text: 'Weight vs. Length for Different Quantities'
}
}
}
});
}
// Initial setup and first calculation
document.addEventListener('DOMContentLoaded', function() {
updateInputFields(); // Set initial inputs based on default shape
calculateWeight(); // Perform initial calculation
// FAQ toggles
var faqQuestions = document.querySelectorAll('.faq-question');
faqQuestions.forEach(function(question) {
question.addEventListener('click', function() {
this.classList.toggle('active');
var answer = this.nextElementSibling;
if (answer.style.display === "block") {
answer.style.display = "none";
} else {
answer.style.display = "block";
}
});
});
});