Overview
310 Stainless Steel Bar / Rod is a stainless steel bar/rod. Relevant grade or standard references include UNS S31000 (310) / S31008 (310S); JIS G4311; GB/T 1220. Typical applications include Furnace parts, burners, combustion chambers; Heat-treatment baskets, fixtures, and trays; Boiler and superheater tube supports; Petrochemical and refinery equipment.
Description (English)
310 stainless steel bar is supplied in hot-finished, cold-finished, or centerless-ground condition per ASTM A276 / A479. The alloy offers exceptional high-temperature strength and oxidation resistance combined with good fabrication characteristics. It is widely used in continuous-service applications up to 1150 °C and intermittent service up to 1035 °C. The alloy is not recommended for use in aqueous corrosive environments where standard 304/316 grades would be more cost-effective. For wet or chloride-containing service, 310S (low-carbon variant, UNS S31008) is typically specified to minimize sensitization and intergranular corrosion.
Grade Specification
| System | Value |
|---|---|
| 🇺🇸 UNS | S31000 (310) / S31008 (310S) |
| 🇯🇵 JIS | G4311 |
| GB/T | 1220 |
Physical Properties
| Property | Unit | Value |
|---|---|---|
| Density | g/cm³ | 7.89 g/cm³ |
Applications
- Furnace parts, burners, combustion chambers
- Heat-treatment baskets, fixtures, and trays
- Boiler and superheater tube supports
- Petrochemical and refinery equipment
- High-temperature conveyors and fans
- Cement kiln components
- Glass and steel industry tooling
- Welding filler metals and weldments
- Power generation — gas turbine and exhaust components
- Cryogenic equipment (down to -268 °C, retains toughness)
- Food processing equipment for high-heat service