ASTM A 335 / A691 GR P5 Alloy Steel Seamless & EFW Pipes
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IBR NACE MR0175 ASTM A 335 GR P5 ALLOY STEEL SEAMLESS PIPES
ASTM A 335 GR P5 Wall Thickness available: Schedule 20 - Schedule XXS (heavier on request) up to 250 mm thk.
ASTM A 335 GR P5 Alloy Steel Seamless Pipe :
ASTM A 335 GR P5 Other Materials Testing :
ASTM A 335 GR P5 Dimensions :
ASTM A 335 GR P5 Heat Treatment Requirements
|
P5, P9, P11, and P22 |
|
|
Grade |
Heat Treatment Type |
Normalizing Temperature Range F [C] |
Subcritical Annealing |
P5 (b,c) |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
|
Subcritical Anneal (P5c only) |
***** |
1325 - 1375 [715 - 745] |
P9 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
P11 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1200 [650] |
P22 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
P91 |
Normalize and Temper |
1900-1975 [1040 - 1080] |
1350-1470 [730 - 800] |
|
Quench and Temper |
1900-1975 [1040 - 1080] |
1350-1470 [730 - 800] |
ASTM A 335 GR P5 Chemical Requirements
Grade | P-5 | P-9 | P-11 | P-22 | P-91 | P-91 shall also include the following: | ||
Element | UNS Designation | K41545 | S50400 | K11597 | K21590 | K91560 | ||
Carbon | 0.15 max | 0.15 max | 0.05 - 0.15 | 0.05 - 0.15 | 0.08 - 0.12 | V at 0.18 - 0.25 | ||
Manganese | 0.30 - 0.60 | 0.30 - 0.60 | 0.30 - 0.60 | 0.30 - 0.60 | 0.30 - 0.60 | N at 0.030 - 0.070 | ||
Phosphorous, max | 0.025 | 0.025 | 0.025 | 0.025 | 0.020 | Ni at 0.40 max | ||
Sulfur, max | 0.025 | 0.025 | 0.025 | 0.025 | 0.010 | Al at 0.02 max | ||
Silicon | 0.50 max | 0.25 - 1.00 | 0.50 - 1.00 | 0.50 max | 0.20 -0.50 | Cb at 0.06 - 0.10 | ||
Chromium | 4.00 - 6.00 | 8.00 - 10.00 | 1.00 - 1.50 | 1.90 - 2.60 | 8.00 - 9.50 | Ti at 0.01 max | ||
Molybdenum | 0.45 -0.65 | 0.90 - 1.10 | 0.44 - 0.65 | 0.87 - 1.13 | 0.85 - 1.05 | Zr at 0.01 max |
ASTM A 335 GR P5 Tensile Requirements
Seamless | ||||||
P-5 | P-9 | P-11 | P-22 | P-91 | P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC]. | |
Tensile Strength, min., psi | ||||||
ksi | 60 | 60 | 60 | 60 | 85 | |
MPa | 415 | 415 | 415 | 415 | 585 | |
Yield Strength, min., psi | ||||||
ksi | 30 | 30 | 30 | 30 | 60 | |
MPa | 205 | 205 | 205 | 205 | 415 |
ASTM A335 GR P5 Permissible Variation in Wall Thickness
NPS [DN] Designator | Tolerance, % from Specified | |
Over | Under | |
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios | 20.0% | 12.5% |
Above 2 1/2 [65], t/D < or = 5% | 22.5% | 12.5% |
Above 2 1/2 [65], t/D > 5% | 15.0% | 12.5% |
(t = Specified Wall Thickness; D = Specified Outside Diameter) |