B167 N06600 Pipe MAWP Calculator ASTM B167 N06600 (600) Pipe SMLS 72Ni-15Cr-8Fe, <=5" O.D., H.F. or H.F. ann.
Size Variant OD <= 5 in. OD > 5 in.
Material Properties Description
ASTM B167 N06600 (600) Pipe SMLS 72Ni-15Cr-8Fe, <=5" O.D., H.F. or H.F. ann.
Min Design Temperature
-325 °F
Y Coefficient
Ref 5 — Other ductile metals
Maximum Allowable Working Pressure (psig) Sch STD Sch XS Sch 160
NPS OD (in) 100 °F 200 °F 300 °F 400 °F 500 °F 600 °F 700 °F 800 °F 1/8 0.405 6,659 6,659 6,659 6,659 6,659 6,659 6,659 6,659 1/4 0.54 6,438 6,438 6,438 6,438 6,438 6,438 6,438 6,438 3/8 0.675 5,210 5,210 5,210 5,210 5,210 5,210 5,210 5,210 1/2 0.84 4,995 4,995 4,995 4,995 4,995 4,995 4,995 4,995 3/4 1.05 4,074 4,074 4,074 4,074 4,074 4,074 4,074 4,074 1 1.315 3,810 3,810 3,810 3,810 3,810 3,810 3,810 3,810 1 1/4 1.66 3,137 3,137 3,137 3,137 3,137 3,137 3,137 3,137 1 1/2 1.9 2,822 2,822 2,822 2,822 2,822 2,822 2,822 2,822 2 2.375 2,377 2,377 2,377 2,377 2,377 2,377 2,377 2,377 2 1/2 2.875 2,600 2,600 2,600 2,600 2,600 2,600 2,600 2,600 3 3.5 2,258 2,258 2,258 2,258 2,258 2,258 2,258 2,258 3.5 4 2,059 2,059 2,059 2,059 2,059 2,059 2,059 2,059 4 4.5 1,914 1,914 1,914 1,914 1,914 1,914 1,914 1,914 5 5.563 1,678 1,678 1,678 1,678 1,678 1,678 1,678 1,678 6 6.625 1,524 1,524 1,524 1,524 1,524 1,524 1,524 1,524 7 7.625 1,421 1,421 1,421 1,421 1,421 1,421 1,421 1,421 8 8.625 1,342 1,342 1,342 1,342 1,342 1,342 1,342 1,342 9 9.625 1,275 1,275 1,275 1,275 1,275 1,275 1,275 1,275 10 10.75 1,217 1,217 1,217 1,217 1,217 1,217 1,217 1,217 12 12.75 1,051 1,051 1,051 1,051 1,051 1,051 1,051 1,051 14 14 955 955 955 955 955 955 955 955 16 16 834 834 834 834 834 834 834 834 18 18 740 740 740 740 740 740 740 740 20 20 665 665 665 665 665 665 665 665 22 22 604 604 604 604 604 604 604 604 24 24 553 553 553 553 553 553 553 553 26 26 510 510 510 510 510 510 510 510 28 28 473 473 473 473 473 473 473 473 30 30 441 441 441 441 441 441 441 441 36 36 367 367 367 367 367 367 367 367 42 42 314 314 314 314 314 314 314 314 44 44 300 300 300 300 300 300 300 300 46 46 287 287 287 287 287 287 287 287 48 48 275 275 275 275 275 275 275 275
Allowable Stress vs Temperature 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 1000 1100 1200 Temperature (°F) 0 5 10 15 20 Allowable Stress (ksi) Disclaimer: This calculator is for guidance only. Results are based on ASME B31.3-2024 allowable stresses for seamless pipe (Ej=1.0, W=1.0). Always verify against the current edition of the standard. The engineer of record is responsible for all design decisions.
References ASME B31.3-2024 — Process Piping, Table A-1 ASME B36.10M — Welded and Seamless Wrought Steel Pipe ASME B16.5-2020 — Pipe Flanges and Flanged Fittings 
