ASTM A335 Alloy Steel Pipe that covers “chrome-moly” seamless pipes with remarkable resistance to corrosion and good tensile strength at high-temperature service. Generally, ASTM A335 P11, P22, and P91 pipes are used in power generation and in downstream oil and gas, P5 and P9 grades are for refinery applications.
Standard: P1, P2, P5,P5b, P5c, P9, P11, P12,P21,P22,P23, P24, P91, P92
OD:13.7-219.1mm
WT:1mm-20mm
Length:3m-12m
ASTM A335 | UNS | 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 | 30 | – | 174 max |
P22 | K21590 | 30 | 60 | 30 | – | – |
P91 | K91560 | 60 | 85 | 20 | – | – |
TOLERANCES DIAMETER
A335 Pipe | Over | Under | ||
NPS [DN] | in. | mm | in. | mm |
1/8 to 1 1/2 / DN 6 to 40 | 1/64 (0.015) | 0.4 | 1/64 (0.015) | 0.4 |
Over 1 1/2 to 4 / DN 40 to 100 | 1/32 (0.031) | 0.79 | 1/32 (0.031) | 0.79 |
Over 4 to 8 / DN 100 to 200 | 1/16 (0.062) | 1.59 | 1/32 (0.031) | 0.79 |
Over 8 to 12 / DN 200 to 300 | 3/32 (0.093) | 2.38 | 1/32 (0.031) | 0.79 |
Over 12 / > DN 300 | +/- 1% of the specified outside diameter |
ALLOY PIPE CROSS REFERENCE TABLE ASTM VS. EN GRADES
Chrome Moly Pipes: Werkstoff vs EN vs ASTM | ||
Werkstoff /DIN | EN | ASTM |
1.5415 | 16Mo3 | A335 Grade P1 |
1.7335 | 13CrMo4-5 | A335 Grade P11, P12 |
1.7380 | 10CrMo9-10 | A335 Grade P22 |
1.7362 | X11CrMo5 | A335 Grade P5 |
A335 Grade P9 | ||
1.4903 | X10CrMoVNb9-1 | A335 Grade P91 |
ASTM A335 Alloy Steel Pipe is used in the energy industry for high temperature and very low-temperature service (cryogenic), or for applications with very high pressures.
If you require further information or you do not see what yo need in our web,please do not hesitate to contact us. Our customer service specialists will be happy to help you.info@jiade-group.com