Customization: | Available |
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Type: | Seamless |
Technique: | Cold Rolled |
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The range of 15CrMoG pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice
For high-pressure boiler (working pressure 9.8MPa or more generally, the working temperature between 450ºC-650ºC) of heating surface tubes, header, economizer, superheater, reheater and so on.
15CrMoG Seamless Tubes for High Pressure Boiler description
Standard: GB 5310
Relative grades:20G, 20MnG, 15MoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG. After consultation, can also supply other grades of steel.
Mechanical properties:
Grade | Tensile strength(MPa) | Yield strength(MPa) | Elongation(%) | |
Vertical | Longitudinal | |||
15CrMoG | 440-640 | 295 min. | 21 min. | 19 min. |
C | Si | Mn | P | S | Cr | Mo |
0.12-0.18 | 0.17-0.37 | 0.40-0.70 | 0.025 max. | 0.015 max. | 0.80-1.10 | 0.40-0.55 |
15CrMoG seamless tubes heat treatment: Normalizing and tempering
Application: For high-pressure boiler (working pressure 9.8MPa or more generally, the working temperature between 450ºC-650ºC) of heating surface tubes, header, economizer, superheater, reheater and so on.
The W.T. tolerance of 15CrMoG:
W.T.(S) | Tolerance of W.T. | |
<3.5 | +15%(+0.48mm min) | |
-10%(+0.32mm min) | ||
3.5-20 | +15%,-10% | |
>20 | D<219 | ±10% |
D≥219 | +12.5%,-10% |