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12Cr1MoVG Boiler Pipe
12Cr1MoVG boiler pipe is alloy high pressure boiler pipe. 12cr1MovG boiler pipe is on the basis of high quality carbon structure steel, appropriate addition of one or more alloy elements, to improve the mechanical properties of steel, toughness and hardenability.
Description
12Cr1MoVG Boiler Pipe
Usage:
The seamless steel pipe made of this kind of steel is widely used in hydraulic prop, high pressure gas cylinder, high pressure boiler, chemical fertilizer equipment, petroleum cracking, automobile axle sleeve, diesel engine, hydraulic pipe fittings and so on.
Feature：
12cr1movg boiler pipe is on the basis of high quality carbon structure steel, appropriate addition of one or more alloy elements, to improve the mechanical properties of steel, toughness and hardenability.
Chemical Composition(%):
| C | Si | Mn | Cr | Mo | V | P(max) | S (max) |
| 0.08-0.15 | 0.17-0.37 | 0.40-0.70 | 0.90-1.20 | 0.25-0.35 | 0.15-0.30 | 0.025 | 0.010 |
Mechanical properties：
| Grade | Tensile strength (Mpa) | Yield strength (Mpa) min | Elongation (%) | Impact test（J） | ||
| longitudinal | transverse | longitudinal | transverse | |||
| 12Cr1MoVG | 470-640 | 255 | 21 | 19 | ≥40 | ≥27 |
Heat treatment：
| Wall thickness | Heat treatment | temperature |
| S≤30mm | Normalizing and tempering | Normalizing:between 980℃ and 1020℃. Tempering:between 720℃ and 760℃. |
| S＞30mm | quenching and tempering or Normalizing and tempering（The pipe should cool quickly after normalizing） | Quenching:between 950℃ and 990℃. Tempering:720℃ and 760℃. Normalizing:980℃ and 1020℃. |
Photos：
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