| Product Classification : High Temperature Alloy | ||||||||||||
| Material : GH2747 | ||||||||||||
| Definition | ||||||||||||
| Gh2747 is a high temperature alloy of the Ni-Cr base precipitation hardening type, which is used in the solid resolution condition, and the long-term work use temperature is 1,250 degrees. And in the short time, the temperature can reach 1300 degrees Celsius. | ||||||||||||
| Chemical Composition | ||||||||||||
| C | Cr | Ni | Al | Fe | Ce | S | P | Si | Mn | |||
| 15 | 44 | 2.9 | Bal | |||||||||
| 0.1 | 17 | 46 | 3.9 | 0.03 | 0.02 | 0.025 | 1.0 | 1.0 | ||||
| Physical properties | ||||||||||||
| Density g/cm³ |
Heat Conductivity/w/(m.k)
100~900ºC |
coefficient of linear expansion
/(10-6/k 20~800ºC |
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| 8.26 | 10.5-24.3 | 7.07 | ||||||||||
| Temperatrue 0/ºC | 20 | 500 | 600 | 700 | 800 | |||||||
| Elasticity Modulus E/GPa | 218 | 177 | 159 | 46 | 128 | |||||||
| Variety | Heat treatment | Temperature0/ºC |
Tensile StrengthΣb\MP
a |
ElongationA/% |
Area Reduction
Z/%2 |
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| 2 | 2 | |||||||||||
| Hot tying rod | Standard heat treatment | 20 | 550 | 15 | 20 | |||||||
| 1000 | 40 | 30 | 30 | |||||||||
| Cold-rolled sheet | Standard heat treatment | 20 | 600 | 30 | ||||||||
| Application | ||||||||||||
|
1)Suitable for engine combustion chamber and aftercombustion chamber oxidation resistance components
2)Industrial boiler, transmission device, thermocouple sleeve and other heat-resistant parts 3)High-temperature anti-oxidation device parts for petrochemical, nuclear energy, metallurgy and other fields |
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