Temperature and Allowable Stresses for Pipes

Allowable stresses in pipe walls for pipes ASTM specification A-53, A-106 and more

Seamless Carbon Steel Pipes

Operating temperature and allowable stresses in pipe walls for seamless carbon steel pipes

• A-53 Grade A and B
• A-106 Grade A, B and C
• A-120

are indicated in the diagram below:

• 1 psi (lb/in²) = 6,894.8 Pa (N/m²)
• T(^oC) = 5/9[T(^oF) - 32]

Seamless Ferritic Alloys Steel Pipes

Operating temperature and allowable stresses in pipe walls for seamless ferritic alloys steel pipes

• A-335 Grade P1, P2, P5, P7, P9, P11, P21, P12, and P22
• A-369 Grade FP1, FP2, FP3,  FP5, FP7, FP9, FP11, FP12, FP21 and FP22

are indicated in the diagram below:

Seamless Austenitic Alloys Steel Pipes

Operating temperature and allowable stresses in pipe walls for seamless austenitic alloys steel pipes  A-312 and A-369

• grade TP304H, TP321H, TP347H, TP348H and TP316H

are indicated in the diagram below:

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