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≤ | Si≤ | Mn≤ | S≤ | Cr≤ | Mo≤ | Ni≤ | V≤ | ||
St35.8 | 0.17 | 0.1~0.35 | 0.4~0.8 | 0.04 | 0.04 | ||||
St45.8 | 0.21 | 0.1~0.35 | 0.4~1.2 | 0.04 | 0.04 | ||||
17Mn4 | 0.14~0.2 | 0.2~0.4 | 0.9~1.2 | 0.04 | 0.04 | 0.3 | |||
15Mo3 | 0.12~0.2 | 0.1~0.35 | 0.4~0.8 | 0.035 | 0.035 | 0.25~0.35 | |||
13CrMo44 | 0.1~0.18 | 0.1~0.35 | 0.4~0.7 | 0.035 | 0.035 | 0.7~1.1 | 0.45~0.65 | ||
10CrMo910 | 0.08~0.15 | 0.5 | 0.4~0.7 | 0.035 | 0.035 | 2~2.5 | 0.9~1.2 | ||
X20CrMoV121 | 0.17~0.23 | 0.5 | 1.0 | 0.030 | 0.030 | 10~12.5 | 0.8~1.2 | 0.3~0.8 | 0.25~0.35 |
Steel Grade | Mechanical Properties | ||||||||
Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) | |||||||
St35.8 | 350~480 | 235 | 25 | ||||||
St45.8 | 410~530 | 255 | 21 | ||||||
17Mn4 | 460~580 | 270 | 23 | ||||||
15Mo3 | 450~600 | 270 | 22 | ||||||
13CrMo44 | 440~590 | 290 | 22 | ||||||
10CrMo910 | 450~600 | 280 | 20 | ||||||
X20CrMoV121 | 690~840 | 490 | 17 | ||||||
