The specification of ASTM A335 Alloy Steel Pipes covers seamless ferritic alloy-steel pipe for high-temperature service. ASTM A335 Seamless Pipes shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding.
The steel material of ASTM A335 P5, P9, P11, P22, P91 SEAMLESS STEEL PIPES shall conform to chemical composition, tensile property, and hardness requirements. Each length of pipe shall be subjected to the hydrostatic test.
Also, each pipe of ASTM A335 P5, P9, P11, P22, P91 SEAMLESS PIPES shall be examined by a non-destructive examination method in accordance to the required practices. The range of Chrome Moly ASTM A335 Grades P5, P9, P11, P22, P91 Steel Pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practices. Meanwhile, the different mechanical test requirements for these Chrome Moly ASME SA335 Grades P5, P9, P11, P22, P91 Steel Pipe, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.
ASTM A335 Seamless Pipes
ASME SA335 Seamless Pipes
ASTM A335 / ASME SA335 P5, P9, P11, P22, P91 Seamless Alloy Steel Pipes Manufacturer, Exporter and Supplier Worldwide
ASTM A335 P5, P9, P11, P22, P91 Seamless Pipes, Tubes Specifications, Stock and Supply Range
Size Range : 1/2” NB to 36” NB
Alloy Steel Pipes Specifications : ASTM A/ASME SA 335 P1, P2, P5, P9, P11, P12, P22, P23, P91, and P92
Thickness Range: SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules, upto 12mm thk
Type : Seamless / ERW / Welded / Fabricated / CDW
Form: Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
Length: Single Random, Double Random & Required Length, Custom Size – 12 Meter lengths
End: Plain End, Beveled End, Treaded
End Protection: Plastic Caps
End Connections for Line Pipes: Plain, Bevel, Screwed, Threaded
Outside Coating: Black Painting, Anti-Corrosion Oil, Galvanised Finish, Finish as per customer Requirements
Inspection, Test Reports: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports, India Boiler Regulations (IBR) Test Certificate
Packing: Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials: Sizes and Specifications other than above can be manufactured on request
ASTM A335 / ASME SA 335 P5, P9, P11, P22, P91 Seamless Pipes Chemical Composition :
| Grade | C | Mn | P | S | Si | Cr | Mo |
| P5 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 4.00-6.00 | 0.45-0.65 |
| P9 | 0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
| P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 |
| P91 | 0.08-0.12 | 0.30-0.60 | 0.02 | 0.01 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 |
| V 0.18-0.25 | N 0.03-0.07 | Ni 0.40 max | Al 0.02 max | Cb 0.06-0.10 | Ti 0.01 max | Zr 0.01 max |
ASTM A335 / ASME SA 335 P5, P9, P11, P22, P91 Seamless Pipes Mechanical Properties :
| Grade | Tensile strength(MPa) | Yield strength(MPa) | Elongation(%) | Impact energy(J) | Hardness |
| P11 | ≥ 415 | ≥ 205 | ≥ 22 | ≥ 35 | ≤ 163HB |
| P12 | ≥ 415 | ≥ 220 | ≥ 22 | ≥ 35 | ≤ 163HB |
| P22 | ≥ 415 | ≥ 205 | ≥ 22 | ≥ 35 | ≤ 163HB |
| P5 | ≥ 415 | ≥ 205 | ≥ 22 | ≥ 35 | ≤ 187HB |
| P91 | 585~760 | ≥ 415 | ≥ 20 | ≥ 35 | ≤ 250HB |
| P92 | ≥ 620 | ≥ 440 | ≥ 20 | ≥ 35 | 250HB |
Tolerance for ASTM A335/ASME SA 335 P5, P9, P11, P22, P91 Seamless Pipes :
| NPS | OD Tolerance | NPS | WT Tolerance |
| 1/8″ ≤ NPS ≤ 1 1/2″ | +/- 0.4 | 1/8″ ≤ NPS ≤ 2 1/2″ , All T/D ratios. | +20%, -12.5% |
| 1 1/2 < NPS ≤ 4″ | +/- 0.79 | NPS ≥ 2 1/2″ , T/D ≤ 5% | +22.5%, -12.5% |
| 4″ < NPS ≤ 8″ | +1.59, -0.79 | NPS ≥ 2 1/2″ , T/D > 5% | +15%, -12.5% |
| 8″ < NPS ≤ 12″ | +2.38, -0.79 | (T= Specified Wall Thickness; D = Specified Outside Diameter) | |
ASTM A 335 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High Temperature Service :
| Trade Name | Grade | UNS # | Pipe | Forged / Bored Pipe * |
| 1 1/4 Chrome | P11 | K11597 | A335 / SA335 | A369 / SA369 |
| 2 1/4 Chrome | P22 | K21590 | A335 / SA335 | A369 / SA369 |
| 5 Chrome | P5 | K41545 | A335 / SA335 | A369 / SA369 |
| 9 Chrome | P9 | S50400 | A335 / SA335 | A369 / SA369 |
| P91 | P91 | K91560 | A335 / SA335 | A369 / SA369 |
| P92 | P92 | K92460 | A335 / SA335 | A369 / SA369 |
Origin of material (Make):
V & M France
Mannesmann Brazil
Dalmine Italy
Tubacex Spain
Nippon Steel & Sumitomo Metal, Japan
Sumitomo Japan
ArcelorMittal Romania
JFE Steel Corporation Japan
Ratnamani India
Rajendra Industrial Corporation India
Outokumpu Finland
Welspun India
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