310Si2, X8CrNiSI25-21, S38340, Ultra High Temperature Stainless Steel
Extreme Temperature Performance 900-1200℃ | FUSHUN SPECIAL STEEL
Superior High-Temperature Performance Steel Grade
310Si2 stainless steel manufactured by FUSHUN SPECIAL STEEL is an advanced austenitic stainless steel designed for extreme high-temperature applications. This premium grade exhibits exceptional high-temperature strength and thermal stability, making it the preferred choice for industrial applications operating at temperatures between 900-1200℃.
As a direct manufacturer, FUSHUN SPECIAL STEEL specializes in producing 310Si2 stainless steel with superior creep resistance and long-term durability. The steel demonstrates sensitivity to sulfur-containing environments and may exhibit precipitation-induced embrittlement at temperatures between 600-800℃, but excels in higher temperature ranges.
International Grade Designations
Chinese Standard: S38340 • 16Cr25Ni20Si2 • 1Cr25Ni20Si2
International: SUS314 (JIS) • 1.4841 (DIN) • X8CrNiSI25-21 (EN)
Advanced Alloy Design for Extreme Temperatures
310Si2’s exceptional performance at extreme temperatures is achieved through precise alloy engineering. The elevated chromium and silicon content work synergistically to enhance thermal stability and oxidation resistance.
Key Alloying Elements Function
- Cr: Increases FeO formation temperature, enhances high-temperature chemical stability
- Si: Improves thermal stability, ferrite-forming element for structural integrity
- Ni: Stabilizes austenitic structure, enhances plasticity, prevents brittle phase precipitation
Superior Temperature Performance
- •Operating Range: 900-1200℃ continuous use
- •Creep Resistance: Exceptional long-term strength
- •Thermal Stability: Stable microstructure at high temperatures
Optimized Chemical Composition
FUSHUN SPECIAL STEEL maintains precise control over 310Si2 chemical composition to ensure optimal high-temperature performance and thermal stability:
| Element | Symbol | Content (%) | High-Temperature Function |
|---|---|---|---|
| Carbon | C | ≤0.20 | Controlled for optimal high-temperature strength |
| Silicon | Si | 1.50~2.50 | Enhanced thermal stability and oxidation resistance |
| Chromium | Cr | 24.00~27.00 | Superior high-temperature oxidation resistance |
| Nickel | Ni | 18.00~21.00 | Austenitic stability and ductility at high temperatures |
| Manganese | Mn | ≤1.50 | Controlled for optimal thermal properties |
Mechanical Properties and Heat Treatment
Mechanical Properties
- •Tensile Strength: ≥520 MPa
- •Yield Strength: ≥205 MPa
- •Elongation: ≥40%
- •Reduction of Area: ≥50%
Heat Treatment Parameters
- •Solution Treatment: 1080-1130℃
- •Cooling Method: Rapid cooling
- •Annealing: 1020-1100℃
- •Hardness: ≤187HBW, ≤90HRB
Advanced Heat Treatment Capabilities
FUSHUN SPECIAL STEEL provides comprehensive heat treatment services designed to optimize 310Si2’s microstructure for extreme temperature applications. Our high-temperature annealing processes ensure stable grain structure and superior mechanical properties for long-term service at 900-1200℃.
Stress Relief: Eliminates processing stresses | Microstructure Stabilization: Optimized for thermal cycling | Grain Control: Enhanced creep resistance
FUSHUN SPECIAL STEEL Manufacturing Excellence
As a leading manufacturer of 310Si2 stainless steel, FUSHUN SPECIAL STEEL offers comprehensive in-house production capabilities. We welcome large volume orders and provide customized solutions for extreme temperature applications.
Available Product Forms
Round Bars: Ø10mm – Ø300mm
Flat Bars: 15×25mm – 100×250mm
Plates: 5mm – 60mm thickness
Forgings: Custom dimensions available
Quality Assurance
State: Solution treated and pickled
Testing: Complete chemical and mechanical testing
Certification: Mill test certificates provided
Traceability: Full material traceability
Extreme Temperature Applications
310Si2 stainless steel from FUSHUN SPECIAL STEEL is specifically engineered for applications requiring exceptional performance at extreme temperatures between 900-1200℃. The steel’s superior creep resistance and thermal stability make it indispensable for critical high-temperature industrial components.
Industrial Furnace Components
Furnace chains, heating elements, structural components, and conveyor systems for extreme temperature processing.
Power Generation Equipment
Industrial boilers, electric furnaces, kilns, and high-temperature steam generation systems.
Aerospace and Automotive
Jet engine components, exhaust systems, catalytic converter housings, and thermal barrier applications.
Petrochemical Processing
High-temperature reactor components, thermal processing equipment, and refinery applications.
Why Choose 310Si2 for Extreme Temperature Applications?
• Superior Creep Resistance: Exceptional long-term strength at high temperatures
• Thermal Cycling Stability: Maintains integrity through repeated heating cycles
• Oxidation Resistance: Forms protective oxide layer at extreme temperatures
• Microstructural Stability: Resists grain growth and phase changes
Partner with FUSHUN SPECIAL STEEL for Extreme Temperature Solutions
Ready to specify 310Si2 stainless steel for your extreme temperature applications? As a leading manufacturer with advanced production capabilities, we provide competitive pricing for large volume orders and custom manufacturing solutions. Contact our technical team for material specifications, performance data, and application engineering support.
FUSHUN SPECIAL STEEL – Your Trusted Partner for Extreme Temperature Stainless Steel Solutions
