use:
Suitable for seamless steel pipes for furnace tubes, heat exchanger tubes and pipelines used in petroleum and refineries.
Steel pipe grade:
10, 20, 15CrMo, 12CrMo, 12Cr2Mo, etc.
Pipe specifications (OD×WT):
1.500〞~16.00〞×0.203〞~0.680〞
| Trademark |
tensile strength (MPa) |
Yield strength (MPa) |
Elongation portrait (%) |
Elongation Horizontal (%) |
absorbed work portrait (KV2/J) |
absorbed work Horizontal (KV2/J) |
Brinell hardness (HB) |
|
10 |
410～475 |
≥205 |
≥25 |
≥23 |
≥40 |
≥27 |
|
|
20 |
410～550 |
≥245 |
≥24 |
≥22 |
≥40 |
≥27 |
|
|
15CrMo |
440～640 |
≥295 |
≥21 |
≥19 |
≥40 |
≥27 |
≤170HBW |
|
12CrMo |
410～560 |
≥205 |
≥21 |
≥19 |
≥40 |
≥27 |
≤156HBW |
|
12Cr2Mo |
450～600 |
≥280 |
≥22 |
≥20 |
≥40 |
≥27 |
≤163HBW |
| name | Trademark | chemical composition% | |||||||||
|
C |
Si |
Mn |
Cr |
Mo |
Ni |
V |
Cu |
P |
S |
||
| no greater than | |||||||||||
| Oil cracking tube |
10 |
0.07~0.13 |
0.17~0.37 |
0.35~0.65 |
≤0.15 |
≤0.15 |
≤0.25 |
≤0.08 |
≤0.20 |
0.025 |
0.015 |
|
20 |
0.17~0.23 |
0.17~0.37 |
0.35~0.65 |
≤0.25 |
≤0.15 |
≤0.25 |
≤0.08 |
≤0.20 |
0.025 |
0.015 |
|
|
12CrMo |
0.08~0.15 |
0.17~0.37 |
0.40~0.70 |
0.40~0.70 |
0.40~0.55 |
≤0.30 |
/ |
≤0.20 |
0.025 |
0.015 |
|
|
15CrMo |
0.12~0.18 |
0.17~0.37 |
0.40~0.70 |
0.80~1.10 |
0.40~0.55 |
≤0.30 |
/ |
≤0.20 |
0.025 |
0.015 |
|
