310H Stainless Steel
Stainless Steel 310H is a high-carbon austenitic stainless steel variant of the 310 grade, engineered to deliver enhanced high-temperature strength and creep resistance for demanding thermal service applications. Distinguished by its controlled carbon content, this alloy retains the exceptional oxidation resistance of the 310 series while offering superior structural stability under prolonged high-temperature loads, making it a critical material in extreme thermal environments requiring both heat resistance and mechanical integrity.
Chemical Composition
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
|
|
Min |
0.04 |
- |
- |
- |
- |
24 |
19 |
|
Max |
0.1 |
0.75 |
2 |
0.045 |
0.03 |
26 |
22 |
Material Properties
|
Density |
Melting Point |
Minimum Mechanical Properties at Room Temperature |
||
|
Tensile Strength |
Yield Strength |
Elongation |
||
|
g/cm3 |
℃ |
Rm N/mm2 |
Rp0.2 N/mm2 |
A5% |
|
7.89 |
1400~1450 |
515 |
205 |
40% |
Feature
Through precise control of high chromium (24%~26%) and nickel (19%~22%) content along with carbon levels, this material significantly enhances high-temperature strength and creep resistance while maintaining the superior oxidation resistance characteristic of the 310 series (maximum service temperature: 1150°C). The carbide strengthening effect provides higher lasting strength within the 600~1100°C range.
Applications
Energy & Power: Coal-fired boiler superheater tubes (900-1150°C), nuclear power heat exchangers
Petrochemical Core: Ethylene cracking furnace tubes, reforming unit converter tubes
Industrial Kilns: Continuous annealing furnace rollers, sintering furnace heat-resistant supports
Aviation Sector: Turbine engine combustion chamber high-temperature liners
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