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Brand Name : YUHONG
Model Number : ASTM A335/ASME SA335 P9
Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin : CHINA
MOQ : 100KGS
Price : Negotiable
Payment Terms : L/C,T/T
Supply Ability : 1000Tons/Month
Delivery Time : 7DAYS
Packaging Details : Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Standard : ASTM A335/ASME SA335
Material : P9
Length : Single Random, Double Random & Cut Length.
Surface : Black/Vanish
OD : 1/2" TO 24 "
END TYPE : PLAIN/BEVELED
Size Standard : ASTM B16.10 & B16.19 & Customized
ASTM A335 / ASME SA335 P9 Alloy Steel Seamless Pipe Black Painting Beveled End
ASTM A335 / ASME SA335 P9 (1Cr9Mo) Chromium Molybdenum Alloy High Pressure Boiler Pipe Heat Resistant Steel A335 P11, P22, P91, T91 Seamless Pipe, Round Rod, Plate, A335 P9 is a high-temperature chromium molybdenum alloy heat-resistant steel produced using American standards. Due to its excellent oxidation resistance, high temperature strength, and sulfide corrosion resistance, it is widely used in high-temperature, high-pressure, flammable, and explosive pipelines in petroleum refining and chemical equipment, especially in direct heating pipes of heating furnaces. The medium temperature can reach 550~600 ℃. The approximate steel grade in China is made of 1Cr9Mo material, and the 1Cr9Mo alloy pipe complies with GB 9948-2006 "Standard for Seamless Steel Pipe for Petroleum Cracking".
ASTM A335 / ASME SA335 Alloy Steel Seamless Pipe Manufacturing process
1. Hot rolling (extruded seamless steel pipe): round tube billet → heating → perforation → three-roll skew rolling, continuous rolling or extrusion → Stripping → sizing (or reducing) → cooling → straightening → hydraulic test (or detection) → marking → storage
2. Cold-drawn (rolled seamless steel pipe): round tube blank → heating → perforation → heading → annealing → pickling → oiling (copper plating) → multi-pass cold drawing (cold rolling) → billet → Heat treatment → straightening → hydraulic test (inspection) → marking → storage
ASTM A335 / ASME SA335 Alloy Steel Pipes Chemical composition(%):
Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
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 | 0.05-0.16 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 |
P5 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 4.00-6.00 | 0.45-0.65 |
P9 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
P91 | 0.08-0.12 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | 0.02-0.50 | 8.00-9.50 | 0.85-1.05 |
P92 | 0.07-0.13 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | ≤0.50 | 8.50-9.50 | 0.30-0.60 |
ASTM A335/ASME SA335 Alloy Steel Pipes Mechanical properties:
Grade | Tensile strength | Yield strength | Elongation |
P11, P22, P5, P9 | ≥415 | ≥205 | ≥30/20 |
P91 | ≥585 | ≥415 | ≥20 |
P92 | ≥620 | ≥440 | ≥20 |
ASTM A335/ASME SA335 Alloy Steel Pipe Application:
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ASTM A335 / ASME SA335 P9 Alloy Steel Seamless Pipe Black Painting Beveled End Images |