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ASTM A335 P91 Seamless Pipe is crafted from a robust chromium molybdenum alloy known for its exceptional heat and corrosion resistance, as well as its strength. This range offers both type 1 and type 2 options. Piping Material stands out as a top producer and provider of various dimensions and types of ASME SA335 Grade P91 Alloy Steel Pipe.
The ASTM A335 P91 Seamless Pipe can be normalized for strength using heat treatment. With 9% chromium and 1% molybdenum, the pipes are strong and corrosion-resistant, resistant to wear and high temperatures. They have decreased thickness and higher creep strength, making them ideal for power generation, petrochemicals, heaters, boilers, and oil services.
ASTM A335 P91 Seamless Pipe The A335 P91 Material comprises various elements such as carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, vanadium, nitrogen, nickel, aluminum, columbium, titanium, and zirconium. It comes in seamless and welded variations. Seamless pipes are drawn from a single billet, whereas ASTM A335 Gr P91 Welded Pipe is welded from a strip or sheet, with options for spiral or longitudinal welding. These pipes boast a minimum yield strength of 415MPa and a minimum tensile strength of 585MPa. For more information on the Alloy Steel P91 ERW Pipe and pricing, do not hesitate to get in touch with us.
| Size in Inch | 1/8NB TO 24NB inch |
| ASTM Standards | ASTM A 335, and ASME SA 335 |
| Type | Seamless Pipes |
| Specialized in Size | Large Diameter Size |
| Outer Dimensions Chart | 19.05milimeter – 114.3milimeter |
| Wall Thickness Chart | 2.0milimeter – 14 milimeter |
| Length in milimeter | max 16000milimeter |
| Schedule Chart | Schedule 20 - XXS up to 250 milimeter thk. |
| Pipe Form | Round, Rectangular, Square, Hydraulic Etc. |
| Length | Single, Double Random & Cut to Length. |
| Pipes & Tube End | Plain, Beveled, Treaded. |
| P5, P9, P11, and P22 | |||
| Grade Chet | Heat Treatment Type | Normalize Temp Range F [C] | Annealing and Tempering Temp Range F [C] |
| P5 (b,c) | Isothermal or Full Anneal | ||
| Temper and Normalize | * | 1250 [675] | |
| Subcritical Anneal (P5c only) | * | 1325 - 1375 [715 - 745] | |
| P9 | Isothermal or Full Anneal | ||
| Temper and Normalize | * | 1250 [675] | |
| P11 | Isothermal or Full Anneal | ||
| Temper and Normalize | * | 1200 [650] | |
| P22 | Isothermal or Full Anneal | ||
| Temper and Normalize | * | 1250 [675] | |
| P91 | Temper and Normalize | 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] |
| Temper and Quench | 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] |
| Seamless Pipe | ||||||
| P5 | P9 | P11 | P22 | P91 | ||
| Tensile Strength, minimum., psi | ||||||
| ksi | 60 | 60 | 60 | 60 | 85 | |
| MPa | 415 | 415 | 415 | 415 | 585 | |
| Yield Strength, minimum., psi | ||||||
| ksi | 30 | 30 | 30 | 30 | 60 | |
| MPa | 205 | 205 | 205 | 205 | 415 | |
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % | V, % | N, % | Ni, % | Al, % | Nb, % |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.08-0.12 | 0.3-0.6 | 0.02 max | 0.01 max | 0.2-0.5 | 8.0-9.5 | 0.85-1.05 | 0.18-0.25 | 0.03-0.07 | 0.4 max | 0.04 max | 0.06-0.10 |
| Tensile Strength , MPa | A335 P91 Yield Strength, MPa | Elongation, % | A335 P91 Hardness, HB |
|---|---|---|---|
| 585 min | 415 min | 20 min | 250 max |
ASTM A335 P91 High Alloy Seamless Steel Pipes
astm a335 p91 hollow structral seamless steel pipes
ASTM A335 P91 Welded Pipes, Size: 1/2 Inch, 3/4 Inch, 1 Inch
Black ASTM A335 P91 Alloy Pipes, 3 Mm
3m, 6m Round Alloy Steel ASTM A335 P91 Pipes
1/2 inch P11 Alloy Steel Seamless Pipes
Round ASTM A335 P91 UNS K91560 Alloy Steel ERW Pipes
1/2inch Alloy Steel ASTM A335 P91 Seamless Steel Pipes
2 inch Black P11 Alloy Steel Seamless Pipes
a355 p91 alloy 12 inch seamless steel pipes
ASTM a355 p91 pipes 1/2inch to 24 inch SCh 40 SCH 80 SCH 120
1.5mm Thick A335 P91 Material
| ASTM | ASME | A335 Gr P91 Equivalent Material | JIS | UNS |
|---|---|---|---|---|
| A335 P91 | SA335 P91 | T91, K90901, X10CrMoVNb9-1, 1.4903 | G 3458 | K91560 |
| ASTM International | BSi - British Standards institute | Material |
|---|---|---|
| ASTM A335 Gr. P5 Pipe | 3604/625 | 5% Cr 1/2% Mo |
| ASTM A335 Gr. P9 Pipe | 3604/629 | 9% Cr 1% Mo |
| ASTM A335 Gr. P11 Pipe | 3604/621 | 1 1/4% Cr 1/2% Mo |
| ASTM A335 Gr. P12 Pipe | 3604/620 | 1% Cr 1/2% Mo |
| ASTM A335 Gr. P22 Pipe | 3604/622 | 2 1/4% Cr 1% No |
| O.D. x Thickness(mm) | O.D x Thickness(mm) | O.D x Thickness(mm) |
|---|---|---|
| 38.1 x 3.2 | 57.0 x 4.9 | 76.2 x 4.0 |
| 38.1 x 4.0 | 57.0 x 6.3 | 76.2 x 5.0 |
| 38.1 x 6.3 | 57.0 x 7.9 | 76.2 x 6.3 |
| 42.4 x 3.2 | 60.3 x 3.2 | 82.5 x 4.5 |
| 42.4 x 4.0 | 60.3 x 3.6 | 88.9 x 3.2 |
| 44.5 x 3.2 | 60.3 x 5.0 | 88.9 x 3.6 |
| 44.5 x 6.3 | 63.5 x 3.2 | 88.9 x 4.0 |
| 48.3 x 3.2 | 63.5 x 3.6 | 101.6 x 3.6 |
| 48.3 x 3.6 | 63.5 x 4.0 | 101.6 x 4.5 |
| 50.8 x 4.5 | 63.5 x 6.3 | 101.6 x 6.3 |
| 51.0 x 3.2 | 63.5 x 7.9 | 114.3 x 3.6 |
| 51.0 x 3.6 | 70.0 x 3.2 | 114.3 x 5.0 |
| 51.0 x 6.3 | 70.0 x 3.6 | 139.7 x 4.0 |
| 57.0 x 3.2 | 70.0 x 6.3 | 139.7 x 5.0 |
| 57.0 x 3.6 | 76.2 x 3.6 | 139.7 x 6.3 |
| 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) | ||
| Size | MSL Make | ISMT make | JSL Make |
|---|---|---|---|
| 1/2" | 4,265.71 | 4,253.35 | 4,27.06 |
| 3/4" | 4,04.12 | 4,036.76 | 4,051.47 |
| 1" | 3,897.06 | 3,889.71 | 3,904.41 |
| 1.25" | 3,852.94 | 3,845.59 | 3,860.29 |
| 1.5" | 3,750.00 | 3,742.65 | 3,757.35 |