1. Application:
Alloy steel pipe applies to petroleum, chemical industry, electric power, boiler, high temperature resistant, low temperature resistant corrosion resistant seamless steel pipe used.
2. Surface Treatment:
Water-Proof black painting /Oil Coating etc.
3. Testing
Chemical composition analysis
Mechanical property
Dimension test
NDE(Ultrasonic/Eddy Current/EMI etc.)
Hydrostatic test
Other test(Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc.)
Mill Test Certificate: EN 10204/3.1B
4. Chemical and Mechanical Datas
Steel Grade | Chemical compositions | ||||||||
C≤ | Mn≤ | P≤ | S≤ | Si≤ | Ni≤ | Cr≤ | Cu | Al≤ | |
1 | 0.30 | 0.4~1.06 | 0.025 | 0.025 | |||||
3 | 0.19 | 0.31~0.64 | 0.025 | 0.025 | 0.18~0.37 | 3.18~3.82 | |||
4 | 0.12 | 0.5~1.05 | 0.025 | 0.025 | 0.08~0.37 | 0.47~0.98 | 0.44~1.01 | 0.4~0.75 | 0.04~0.3 |
6 | 0.30 | 0.29~1.06 | 0.025 | 0.025 | 0.01 min | ||||
7 | 0.19 | 0.9 | 0.025 | 0.025 | 0.13~0.32 | 2.03~2.57 | |||
8 | 0.13 | 0.9 | 0.025 | 0.025 | 0.13~0.32 | 8.4~9.6 | |||
9 | 0.20 | 0.4~1.06 | 0.025 | 0.025 | 1.6~2.24 | 0.75~1.25 | |||
10 | 0.20 | 1.15~1.50 | 0.035 | 0.015 | 0.10~0.35 | 0.25 | 0.15 | 0.15 | 0.06 |
11 | 0.10 | 0.60 | 0.025 | 0.025 | 0.35 | 35~37 | 0.50 | ||
Steel Grade | Mechanical Properties | ||||||||
Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) | |||||||
1 | 380 | 205 | 35 | ||||||
3 | 450 | 240 | 30 | ||||||
4 | 415 | 240 | 30 | ||||||
6 | 415 | 240 | 30 | ||||||
7 | 450 | 240 | 30 | ||||||
8 | 690 | 515 | 22 | ||||||
9 | 435 | 315 | 28 | ||||||
10 | 550 | 450 | 22 | ||||||
11 | 450 | 240 | 18 | ||||||
