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316h Plate
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316H stainless steel plate (316H plate) is a high-carbon version of 316 stainless steel, designed specifically for high-temperature strength and long-term thermal stability. It belongs to the austenitic stainless steel family and is widely used in pressure vessels, boilers, and heat-resistant structural applications.
Compared with standard 316/316L grades, 316H provides better strength retention at elevated temperatures.
Chemical Composition of 316H Stainless Steel
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Carbon (C) | 0.04 – 0.10 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Key Feature
The higher carbon content compared to 316L improves high-temperature strength and creep resistance.
Key Properties of 316H Stainless Steel Plate
1. Excellent High-Temperature Strength
- Maintains mechanical strength under elevated temperatures
- Better creep resistance than standard 316/316L
- Suitable for long-term thermal exposure
2. Good Corrosion Resistance
- Excellent resistance to general corrosion
- Strong performance in chemical and marine environments
- Molybdenum improves resistance to pitting and crevice corrosion
3. Thermal Stability
- Stable performance in continuous high-temperature service
- Resistant to deformation under heat and pressure
4. Good Fabrication Properties
- Can be welded and formed
- Requires controlled processing due to higher carbon content
- Suitable for heavy engineering fabrication
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Density | ~7.98 g/cm³ |
316H vs 316 / 316L Comparison
| Feature | 316H | 316 | 316L |
|---|---|---|---|
| Carbon Content | Higher | Medium | Low |
| High-Temperature Strength | Excellent | Good | Lower |
| Corrosion Resistance | Very Good | Very Good | Excellent |
| Creep Resistance | Strong | Moderate | Lower |
| Main Use | High-temp systems | General use | Welded corrosion systems |
Common Applications of 316H Plate
1. Pressure Vessel Industry
- High-temperature pressure vessels
- Reactor components
- Industrial boilers
2. Petrochemical Industry
- Refinery equipment
- Heat exchangers
- High-temperature pipelines
3. Power Generation
- Boiler components
- Steam systems
- Turbine auxiliary equipment
4. Chemical Processing Industry
- High-temperature chemical reactors
- Corrosion-resistant structural parts
- Process equipment
5. Marine and Industrial Engineering
- High-strength marine components
- Thermal-resistant industrial structures
Advantages of 316H Stainless Steel Plate
- Excellent high-temperature strength
- Strong creep resistance
- Good corrosion resistance in harsh environments
- Suitable for long-term thermal applications
- Reliable performance in pressure systems
Limitations
- Higher carbon reduces weld corrosion resistance compared to 316L
- Not ideal for low-temperature cryogenic applications
- Higher cost than standard 316 grades
Teda Ganghua – Supply Capability
Teda Ganghua supplies 316H stainless steel plates with stable quality and industrial processing support:
- Multiple thickness and custom sizes
- Precision cutting and fabrication services
- Strict chemical and mechanical inspection
- Export packaging and global logistics support
- Support for engineering-grade applications
With strong supply capability, Teda Ganghua provides reliable high-temperature stainless steel solutions for industrial projects worldwide.
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