Thick wall pipe computing ability to pressure
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Thick-walled seamless computing ability to pressure
Details:
Thick-walled seamless steel pipe the ability - examples of how to calculate the pressure
The calculation of the thick-walled seamless steel pipe pressure capability is what the following, we select an actual case to illustrate
DN = 10MM, a wall thickness of 3 mm
Let the tensile strength of the material is σ, the pressure is P, and the pipe diameter D;
Pipe wall thickness δ = (P * D) / (2 * σ / S)
Wherein S is a safety factor;
Because P is less than 7MPa S select S = 8; P less than 17.5MPa, S select S = 6; P greater than 17.5MPa, S select S = 4;
We chose the safety factor for S = 6; the election 20 steel tensile strength of 410 MPa,
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Therefore, the tube can withstand the pressure P = (2 * σ / S * δ) / D
= (2 * 410/6 * 3) / (10 +6)
= 26.25MPa> setting 17.5
So the safety factor of S = 4
Therefore, the tube can withstand the pressure P = (2 * σ / S * δ) / D
= (2 * 410/4 * 3) / (10 +6)
= 39.375MPa
According to this formula, you can easily calculate the bearing capacity of all kinds of seamless steel pipe
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