Product | ASTM A335 P91 alloy seamless steel tube |
Standard | ASTM A355 |
Material | P11 |
Surface | Black paint, varnish, oil, galvanized |
Pipe Length | 5.8 m to 12 m, can be customized according to the length requirements |
Pipe Ends | Plain Ends, Beveled Ends |
End Protector | 1. Plastic caps (small OD) 2. Iron protector (large OD) |
Application | Fluid pipe, oil pipe, gas pipe, structure pipe, boiler tubes |
Test | Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size |
Productivity | 50000 tons per month |
Min Order | 20 ton |
Remark | Special design available according to requirement |
ASTM A335 Low-Alloy Steel (Grades) | UNS equivalent | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Mo |
P1 | K11522 | 0.10~0.20 | 0.30~0.80 | 0.025 | 0.025 | 0.10~0.50 | - | 0.44~0.65 |
P2 | K11547 | 0.10~0.20 | 0.30~0.61 | 0.025 | 0.025 | 0.10~0.30 | 0.50~0.81 | 0.44~0.65 |
P5 | K41545 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 4.00~6.00 | 0.44~0.65 |
P5b | K51545 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 1.00~2.00 | 4.00~6.00 | 0.44~0.65 |
P5c | K41245 | 0.12 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 4.00~6.00 | 0.44~0.65 |
P9 | S50400 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50~1.00 | 8.00~10.00 | 0.44~0.65 |
P11 | K11597 | 0.05~0.15 | 0.30~0.61 | 0.025 | 0.025 | 0.50~1.00 | 1.00~1.50 | 0.44~0.65 |
P12 | K11562 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 0.80~1.25 | 0.44~0.65 |
P15 | K11578 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 1.15~1.65 | - | 0.44~0.65 |
P21 | K31545 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 2.65~3.35 | 0.80~1.60 |
P22 | K21590 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 1.90~2.60 | 0.87~1.13 |
P91 | K91560 | 0.08~0.12 | 0.30~0.60 | 0.02 | 0.01 | 0.20~0.50 | 8.00~9.50 | 0.85~1.05 |
P92 | K92460 | 0.07~0.13 | 0.30~0.60 | 0.02 | 0.01 | 0.5 | 8.50~9.50 | 0.30~0.60 |
mechanical properties:
Hardness | ||||||
A335 Low-Alloy Pipe | UNS Number | Yield Strength ksi | Tensile Strength ksi | Elongation % | Rockwell | Brinell |
P1 | K11522 | 30 | 55 | 30 | - | - |
P2 | K11547 | 30 | 55 | 30 | - | - |
P5 | K41545 | 40 | 70 | 30 | - | 207 max |
P9 | S50400 | 30 | 60 | 30 | - | - |
P11 | K11597 | 30 | 60 | 20 | - | - |
P12 | K11562 | 32 | 60 |
Manufacturing:
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Packing:
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