ASTM A335 standard which is equals to ASME SA335 standard,specifies the specification of seamless ferritic alloy steel pipe for high temperature service which are usually used as steel boiler tubes.Seamless pipes of this standard are either hot finished or cold drawn with finishing treatment as required.IMRI is experienced in supplying alloyed steel pipes of all steel grades such as P9,P11,P21,922,P91 seamless alloy steel pipes,etc.
Specifications
Standard | ASTM A335/ASME SA335 |
Steel Grade/Material | P1,P2,P5,P5b,P5c,P9,P11,P12,P15,P21,P22,P23,P36,P91,P92,P122,P911 |
OEM service | Provide |
Outer Diameter(OD) | 1 1/2”-28”(38mm-720mm) |
Wall Thickness(WT) | 2.6mm-60mm |
Length | 5.8-16m or OEM |
Packing | Plastic cap and bundling |
Surface Treatment | Bare or 3pe,3pp,fbe anti-corrosion coated |
Section Shape | Round |
Technique | Seamless hot rolled or cold drawn |
Application | Seamless ferrite alloy steel pipe for high temperature boiler |
Sour service | No |
Place of Origin | China |
MOQ | 25 ton |
Transportation | 1.Sea port:Tianjin Xingang port,Qingdao port,Shanghai Luojing port →America,Europe,Africa,Middle East,India, Pakistan,Japan,Korea, Australia…(shipping)
2.Land port:Alataw pass port(Пограничный пункт “Алашанькоу”) |
Chemical Composition of ASTM A335/ASME SA335 Ferrite Alloy Seamless Steel Pipe % | ||||||||||
Grade | UNS designation | Carbon | Manganese | phos-phorus max | Sulfur max | Silicon | Chromium | Molybde-num | Others | |
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 max | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 4.00-6.00 | 0.45-0.65 | - | |
P5b | K51545 | 0.15 max | 0.30-0.60 | 0.025 | 0.025 | 1.00-2.00 | 4.00-6.00 | 0.45-0.65 | - | |
P5c | K41245 | 0.12 max | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 4.00-6.00 | 0.45-0.65 | - | |
P9 | S50400 | 0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 | - | |
P11 | K11597 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | - | |
P12 | K11562 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | 0.50 max | 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 | 0.50 max | 2.65-3.35 | 0.80-1.06 | - | |
P22 | K21590 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 | - | |
P23 | K41650 | 0.04-0.10 | 0.10-0.60 | 0.030 max | 0.010 max | 0.50 max | 1.90-2.60 | 0.05-0.30 | V 0.20-0.30 | Cb 0.02-0.08 |
B 0.0010-0.006 | N 0.0015 max | |||||||||
Al 0.030 max | W 1.45-1.75 | |||||||||
Ni 0.40 max | Ti 0.005-0.060 | |||||||||
Ti/N ≥3.5 | - | |||||||||
P36 | K21001 | 0.10-0.17 | 0.80-10.20 | 0.030 max | 0.025 max | 0.25-0.50 | 0.30 max | 0.25-0.50 | Ni 1.00-1.30 | Cu 0.50-0.80 |
Cb 0.015-0.045 | V 0.02 max | |||||||||
N 0.02 max | Al 0.050 max | |||||||||
P91 | K91560 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 8.00-8.50 | 0.85-1.05 | V 0.18-0.25 | N 0.030-0.070 |
Ni 0.40 max | Al 0.02 max | |||||||||
Cb 0.06-0.10 | Ti 0.01 max | |||||||||
Zr 0.01 max | - | |||||||||
P92 | K92460 | 0.07-0.13 | 0.30-0.60 | 0.020 | 0.010 | 0.50 max | 8.50-9.50 | 0.30-0.60 | V 0.15-0.25 | N 0.03-0.07 |
Ni 0.40max | Al 0.02 max | |||||||||
Cb 0.04-0.09 | W 1.50-2.00 | |||||||||
B 0.001-0.006 | Ti 0.01 max | |||||||||
Zr 0.01 max | - | |||||||||
P122 | K92930 | 0.07-0.14 | 0.70 max | 0.020 | 0.010 | 0.50 max | 10.00-11.50 | 0.25-0.60 | V 0.15-0.30 | W 1.50-2.50 |
Cu 0.30-1.70 | Cb 0.04-0.10 | |||||||||
B 0.0005-0.005 | N 0.040-0.100 | |||||||||
Ni 0.50 max | Al 0.020 max | |||||||||
Ti 0.01 max | Zr 0.01 max | |||||||||
P911 | K91061 | 0.09-0.13 | 0.30-0.60 | 0.020 max | 0.010 max | 0.10-0.50 | 8.5-9.5 | 0.90-1.10 | V 0.18-0.25 | Ni 0.40 max |
Cb 0.060-0.10 | B 0.0003-0.006 | |||||||||
N 0.04-0.09 | Al 0.02 max | |||||||||
W 0.90-1.10 Ti | 0.01 max | |||||||||
Zr 0.01 max | - |
Tensile Property Requirements for ASME SA335/ASTM A335 Steel Pipes | ||||||||
Grade | P1,P2 | P12 | P23 | P91 | P92,P911,P36 class1 | P122 | P36 class2 | All others |
Tensile strength ≥ ksi(MPa) | 55(380) | 60(415) | 74(510) | 85(585) | 90(620) | 90(620) | 95.5(660) | 60(415) |
Yield strength ≥ksi(MPa) | 30(205) | 32(220) | 58(400) | 60(415) | 64(440) | 64(440) | 66.5(460) | 30(205) |