What is SS 310 material?
SS 310 (UNS S31000) is a high-alloy austenitic stainless steel specifically designed for exceptional heat resistance, containing approximately 25% chromium and 20% nickel in its composition. It performs excellently in high-temperature applications (up to 1150°C or 2100°F) and is frequently used in the manufacture of furnace components, heat exchangers, and kiln equipment. Its equivalent grades include AISI 310, 310S (the low-carbon version), and 310H (the high-carbon version).
What is the equivalent material of SS 310?
SS 310 (UNS S31000) is a high-temperature austenitic stainless steel, frequently superseded by its low-carbon variant, 310S (UNS S31008), or the European standard equivalent, 1.4845 (X8CrNi25-21). Other major equivalent grades include DIN 1.4841, JIS SUS310S, and BS 310S31; these materials are primarily utilized in high-temperature furnaces, heat exchangers, and chemical processing applications.
What is the alternative to 310 stainless steel?
The primary alternatives to 310 stainless steel for high-temperature applications are 253MA, 314, and 330 stainless steel. These alloys offer superior heat resistance, creep strength, or better cost-efficiency depending on the specific application.
310 stainless steel Chemical Composition (%)
| Element | Symbol | Min (%) | Max (%) |
| Carbon | C | - | 0.25 |
| Chromium | Cr | 24.00 | 26.00 |
| Nickel | Ni | 19.00 | 22.00 |
| Manganese | Mn | - | 2.00 |
| Silicon | Si | - | 1.50 |
| Phosphorus | P | - | 0.045 |
| Sulfur | S | - |
0.030
|
310 stainless steel Mechanical Properties (at 20°C)
| Property | Value (Metric) | Value (Imperial) |
| Tensile Strength (Rm) |
≥ 515 MPa |
≥ 75 ksi |
| Yield Strength (Rp0.2) |
≥ 205 MPa |
≥ 30 ksi |
| Elongation (A5) |
≥ 40 % |
≥ 40 % |
| Hardness (Brinell) |
≤ 225 HBW |
- |
| Hardness (Rockwell B) |
≤ 95 HRB |
-
|
310 stainless steel Physical Properties
| Property | Value |
| Density | 7.89 g/cm3 |
| Melting Point | 1400 - 1450 °C |
| Specific Heat | 500 J/(kg⋅K)(at 0-100°C) |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 14.2 W/(m⋅K)(at 100°C) |
| Electrical Resistivity | 0.78 Ω⋅mm2/m |
310 stainless steel High-Temperature Resistance
| Service Condition | Max. Temperature (°C) | Max. Temperature (°F) |
| Continuous Service (Air) | 1150°C | 2100°F |
| Intermittent Service (Air) | 1035°C | 1900°F |
What is the density of Stainless Steel 310?
The density of 310 stainless steel is typically 7.84–8.0 g/cm³ (0.284–0.289 lb/in³). It is a high-alloy austenitic stainless steel commonly used in high-temperature applications, such as heat exchangers, furnace components, and fuel burner parts. Alternative designations for this material include UNS S31000, Grade 310, and SUS 310.
SS 310 Applications:
Furnace parts & linings
Heat treatment baskets and jigs
Kiln components
Boiler baffles
Coal gasifier components
What is the difference between SS 310 and ss316?
SS 310 is primarily designed for high-temperature environments, boasting excellent heat resistance (up to 1150°C) that makes it suitable for the manufacture of various furnaces and ovens. In contrast, SS 316 exhibits superior corrosion resistance, performing particularly well in chloride-rich (marine) environments. Specifically, SS 310 derives its exceptional heat resistance from its higher nickel and chromium content, whereas SS 316 offers more comprehensive and cost-effective overall corrosion protection under ambient temperature conditions.
What is the difference between SS 310 and 321 stainless steel?
SS 310 and SS 321 are both austenitic stainless steels in the 300 series, but they differ significantly in terms of applications, heat resistance, and chemical composition.
SS 310 is a highly alloyed grade with excellent high-temperature oxidation resistance, capable of withstanding temperatures up to 1150°C. Therefore, it is an ideal material for manufacturing various types of furnace equipment.
In contrast, SS 321 is stabilized with titanium, which effectively prevents intergranular corrosion (commonly referred to as "weld decay") in welded structures during service at elevated temperatures.
310 Stainless Steel Supplier
As a leading supplier, Gnee provides a complete range of SUS310/310S products with competitive pricing and international certifications.
| Product Form | Common Standards | Size / Dimension Range | Surface Finish |
| Seamless Pipes & Tubes | ASTM A312, A213, JIS G3459 |
OD: 6mm - 630mm WT: 0.5mm - 60mm (SCH 5S - XXS) |
Annealed & Pickled (AP), Polished |
| Welded Pipes & Tubes | ASTM A312, A358, JIS G3447 |
OD: 12.7mm - 2000mm WT: 0.5mm - 30mm |
No.1, 2B, BA, Polished (Grit 180-600) |
| Plates & Sheets | ASTM A240, JIS G4304/4305 |
Thickness: 0.3mm - 100mm Width: 1000mm, 1219mm, 1500mm, 2000mm |
No.1, 2B, BA, No.4, HL, Mirror |
| Round Bars / Rods | ASTM A276, A479, JIS G4303 |
Diameter: 2mm - 500mm Length: 2m - 12m (or customized) |
Black, Bright, Peeled, Polished, Centerless Ground |
| Flat / Hex / Square Bars | ASTM A276, JIS G4303 | Thickness/Width: 3mm - 100mm | Pickled, Polished, Sandblasting |
| Steel Coils / Strips | ASTM A240, JIS G4305 |
Thickness: 0.1mm - 12mm Width: 10mm - 2000mm |
No.1, 2B, BA, No.4, HL |
If you have project-specific requirements for 310 or 310S stainless steel, we invite you to place an order. GNEE maintains an extensive inventory of popular products for you to choose from. These materials can be processed into a wide variety of practical forms-including plates, coils, tubes, bars, wires, and more. For detailed information regarding chemical composition or to request free samples, please contact our factory immediately. We offer competitive pricing and exceptional service.