

ASTM A335 ASME SA335 Grade P11 seamless alloy steel pipes tubes
Standard specification for seamless ferritic alloy steel pipes for high temperature services in ASTM A335/A335M and ASME SA335/SA335M.
Relative steel grades:ASTM A335 Grade P1,Grade P2,Grade P5,Grade P5b,Grade P5c,Grade P9,Grade P11,Grade P12,Grade P15,Grade P21,Grade P22,Grade P23,Grade P24,Grade P36,Grade P91,Grade P92,Grade P122,Grade P911.
Main application:These A335 alloy pipes used for high temperature boiler piping,heat-resisting power plant industry,etc.ASTM A335 GR.P11 alloy seamless steel pipes have to be done Normalized and Tempered heat treatment with type of hot finished or Cold drawn.
Rolling range:A) Diameter:1/2’’ to 36’’ B) Schedule:SCH20-SCHXXS C) O.D.:13.7MM-914.4MM D) Wall Thickness: 2.11MM-60MM E) Length: Max.17MM
Tests for pipes:Low temperature impacting test,NDE (Non-Destructive Testing),Ultrasonic examination,Heat treatment,Bending test,Eddy test,Hydrostatic test,High tension test,Hardness test.
Certificates:Original Mill test certificates with EN 10204 3.1 OR 3.2 approved by third party inspection TUV,LR,ABS,SGS,PED,etc.
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►Mechnical property for A335 Grade P11 Ferritic alloy steel pipes:
Yield strength (≥Mpa) |
Tensile strength (≥Mpa) |
Elongation in 2 in. Or 50mm Min % Wall Thickness ≥8mm | |
Longitudinal |
Transverse | ||
205 |
415 |
30 |
20 |
►Chemical composition for A335 Grade P11 steel tubes (Cast Analysis Max%)
Main chemical elements composition of A335 Gr.P11 | ||||||
C |
Mn |
P |
S |
Si |
Cr |
Mo |
0.05-0.15 |
0.30-0.60 |
0.025 |
0.025 |
0.50-1.00 |
1.00-1.50 |
0.44-0.65 |
Xinsteel keeps stock of these seamless Cr-Mo Chromium-Molybdenum alloy pipes in astm a335 with grade P1,grade P2,grade p5,grade P9,grade p11,grade P22,grade P91,grade P911,etc from chinese national steel mills TPCO,BAOSTEEL and Janpanese JFE steel.