310S UNS S31008 Hot Rolled Stainless Steel Sheet
Material Grade:310S
Thickness:3–100 Mm
Length:2000–12000 Mm
Width:1000–3000 Mm
Surface Finish:No.1 / HRAP
Application:Industrial Furnaces, Heat-Treatment Equipment, High-Temperature Equipment Etc.
Products Description
310S UNS S31008 Hot Rolled Stainless Steel Sheet is a high-temperature austenitic stainless steel designed for demanding applications where heat resistance, oxidation resistance, and long-term structural stability are required. Manufactured from AISI 310S / UNS S31008 stainless steel, the sheet is particularly suitable for industrial furnaces, heat-treatment equipment, high-temperature process systems, and thermal processing equipment.
Typical Product Specifications
| Specification | Details |
|---|---|
| Product Name | 310S Hot Rolled Stainless Steel Sheet |
| Grade | 310S |
| UNS | S31008 |
| Material Type | Austenitic Stainless Steel |
| Standard | ASTM A240 / ASME SA240 |
| Production Process | Hot Rolled |
| Surface | No.1 / HRAP |
| Thickness | Approx. 3–100 mm |
| Width | Approx. 1000–3000 mm |
| Length | Approx. 2000–12000 mm |
| Custom Size | Available |
| Heat Treatment | Solution Annealed |
| Applications | Industrial Furnaces, Heat-Treatment Equipment, High-Temperature Equipment |
Why Choose 310S Stainless Steel Sheet?
The main advantage of 310S stainless steel is its ability to perform reliably at elevated temperatures. Its relatively high chromium and nickel content provides excellent resistance to oxidation and scaling compared with many conventional stainless steel grades.
This makes 310S a preferred material for equipment exposed to:
High operating temperatures
Thermal cycling
Oxidizing atmospheres
Furnace gases
Heat-treatment processes
High-temperature industrial environments
Main Applications
Industrial Furnaces
310S hot rolled stainless steel sheet can be used for components and structures in:
Furnace linings
Furnace doors
Furnace panels
Furnace structural components
Furnace covers
High-temperature supports
Heating equipment components
Heat-Treatment Equipment
The material is also suitable for:
Heat-treatment furnace components
Annealing equipment
Heat-treatment trays
Heat-resistant containers
Furnace fixtures
Thermal processing equipment
Other High-Temperature Applications
Petrochemical processing equipment
High-temperature piping and ducts
Heat exchangers
Thermal processing systems
Industrial combustion equipment
High-temperature structural components
Surface Finish
For hot rolled 310S stainless steel sheet, the most common surface condition is:
No.1 / HRAP (Hot Rolled, Annealed and Pickled)
The process generally includes:
Hot Rolling → Annealing → Pickling → Leveling → Inspection → Cutting
The pickling process removes oxide scale generated during hot rolling and heat treatment, producing a clean and uniform industrial surface.
310S vs 304 and 316L
| Feature | 310S | 304 | 316L |
|---|---|---|---|
| High-Temperature Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ |
| Oxidation Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ |
| General Corrosion Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
| Chloride Resistance | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
| High-Temperature Applications | Excellent | Limited | Moderate |
| Furnace Applications | Excellent | Limited | Limited |
| Typical Positioning | High-Temperature Equipment | General Purpose | Corrosive/Marine Environments |
Chemical Composition of 310S Stainless Steel Sheet
310S stainless steel (UNS S31008) is a high-temperature austenitic stainless steel with relatively high chromium and nickel contents. According to ASTM A240 / ASME SA240, the typical chemical composition requirements are:
| Element | Composition (wt. %) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 24.0–26.0 |
| Nickel (Ni) | 19.0–22.0 |
| Molybdenum (Mo) | - |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
Physical Properties of 310S Stainless Steel Sheet
310S / UNS S31008 is an austenitic stainless steel designed for high-temperature applications. Its physical properties make it particularly suitable for industrial furnaces, heat-treatment equipment, and thermal processing systems.
| Property | Typical Value |
|---|---|
| Material | 310S / UNS S31008 |
| Material Type | Austenitic Stainless Steel |
| Density | ~7.9 g/cm³ |
| Melting Range | ~1400–1450°C |
| Elastic Modulus | ~200 GPa |
| Poisson's Ratio | ~0.30 |
| Thermal Conductivity | ~14.2 W/m·K at 100°C |
| Specific Heat Capacity | ~500 J/kg·K |
| Electrical Resistivity | ~0.78 μΩ·m at 20°C |
| Coefficient of Thermal Expansion | ~15.9 × 10⁻⁶ /K (20–100°C) |
| Magnetic Property | Generally non-magnetic |
| Crystal Structure | Face-Centered Cubic (FCC), Austenitic |
FAQ
1. What is 310S stainless steel?
2. Why is 310S suitable for industrial furnaces?
3. What are the main applications of 310S stainless steel sheet?
Typical applications include:
Industrial furnace panels
Furnace doors and covers
Heat-treatment equipment
Annealing furnace components
Furnace trays and fixtures
Heat-resistant supports
High-temperature ducts
Petrochemical processing equipment
Thermal processing systems
4. What is the maximum operating temperature of 310S?
5. What is the difference between 310S and 304 stainless steel?
310S has significantly higher chromium and nickel contents, giving it much better oxidation resistance and high-temperature performance.
310S: High-temperature / furnace applications
304: General-purpose corrosion-resistant applications
6. What is the difference between 310S and 316L?
316L is primarily optimized for corrosion resistance, especially in chloride and marine environments, while 310S is optimized for high-temperature and oxidation resistance.
310S → High Temperature
316L → Corrosion & Marine Resistance
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