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SS Pipe Weight Chart Sch 20

Pipe Weight Formula:

\[ W = \frac{ρ \times π \times (OD^2 - ID^2) \times L}{4} \]

kg/m³
meters
meters
meters
kilograms

1. What is the SS Pipe Weight Calculator?

Definition: This calculator estimates the weight of stainless steel pipes (Schedule 20) based on their dimensions and material density.

Purpose: It helps engineers, fabricators, and construction professionals determine pipe weights for structural calculations and material planning.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = \frac{ρ \times π \times (OD^2 - ID^2) \times L}{4} \]

Where:

  • \( W \) — Pipe weight (kilograms)
  • \( ρ \) — Material density (kg/m³, 8000 for stainless steel)
  • \( OD \) — Outer diameter (meters)
  • \( ID \) — Inner diameter (meters)
  • \( L \) — Pipe length (meters)

Explanation: The formula calculates the volume of the pipe wall (cross-sectional area × length) and multiplies by density to get weight.

3. Importance of Pipe Weight Calculation

Details: Accurate weight calculations are crucial for structural integrity, transportation planning, and cost estimation in piping systems.

4. Using the Calculator

Tips:

  • Default density is set for stainless steel (8000 kg/m³)
  • Enter dimensions in meters (convert from mm: divide by 1000)
  • For solid rods, set ID = 0
  • OD must be greater than ID

5. Frequently Asked Questions (FAQ)

Q1: What's the density of stainless steel?
A: Typically 8000 kg/m³, but varies slightly by grade (7930 for 304, 8000 for 316).

Q2: How do I find Schedule 20 pipe dimensions?
A: Consult ASME B36.19M standards or pipe manufacturer specifications.

Q3: Can I use this for other materials?
A: Yes, just change the density value (e.g., 7850 for carbon steel).

Q4: Why is the result in kilograms?
A: The formula uses metric units. For pounds, multiply kg by 2.20462.

Q5: What if my pipe isn't Schedule 20?
A: You'll need to input the actual OD and ID measurements for your specific pipe schedule.

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