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15crmog 13crmo44 Seamless Alloy Steel Pipe For High Pressure
15CrMoG is GB 5310-95 steel grade (equivalent to 13CrMo44 of Federal Germany; corresponding to 1Cr-1 / 2Mo and 1 1 / 4cr-1 / 2mo-si steel widely used in various countries in the world). Its chromium content is higher than 12CrMo steel, so it has higher thermal strength at 500-550 ºC. When the temperature is higher than 550 ºC, the thermal strength of 15CrMoG steel is significantly reduced. When it runs at 500-550ec for a long time, it does not produce graphitization, but it will produce carbide spheroidization and redistribution of alloy elements, which all lead to the decrease of the thermal strength of steel. 15CrMoG steel has good relaxation resistance at 450 ºC. Its pipe making and welding process performance is good.
Chemical Composition
| Steel Pipe | Chemical Composition (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 15CrMoG | C: 0.12~0.18 | Si: 0.17~0.37 | Mn: 0.40~0.70 | Cr: 0.80~1.10 | Mo: 0.40~0.55 | Ni: ≤0.30 | Cu: ≤0.20 | P: 0.025 | S: 0.020 |
Mechanical Properties
| Tensile (MPa) | Yield (MPa) | Elongation % | Impact (J) | Hardness (HBW) | Hardness (HRB) |
|---|---|---|---|---|---|
| 440~640 | 235 | 21 (Portrait) | 40 (Portrait) | 170 | 88HRB |
Detailed Specifications
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