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Stainless SteelS31008

310S Stainless Steel

310S stainless steel is a high-alloy austenitic stainless steel with elevated chromium and nickel content, designed for superior oxidation resistance and strength at high temperatures. Its low carbon content prevents carbide precipitation, enhancing resistance to intergranular corrosion and ensuring long-term reliability in extreme conditions. This grade is widely used in furnace parts, heat exchangers, kilns, boilers, and other high-temperature industrial equipment. It is supplied in square bar form under standards such as ASTM A276/A479. 310S stainless steel is routinely specified for furnace muffles, radiant tubes, and heat-treatment fixtures operating above 1000°C, where standard austenitic grades like 304 or 316 would scale or lose strength.

Material Profile

Overview

Family
Stainless Steel
Type
Austenitic
UNS
S31008

Features

Material Advantages

High-Temperature Oxidation Resistance

High chromium and nickel content supports strong oxidation resistance in elevated-temperature service.

Heat-Resistant Austenitic Structure

Austenitic structure and alloy balance support stability for furnace parts, kilns, radiant tubes and thermal processing equipment.

Low-Carbon 310 Variant

Lower carbon content compared with standard 310 helps reduce carbide precipitation risk in certain high-temperature and welded applications.

Thermal Cycling Service

Commonly selected for parts exposed to repeated heating and cooling where oxidation resistance and thermal stability are important.

Supply Forms

Available Product Forms

Select a product form to review size ranges, specifications and sourcing details.

Technical Data

Material Technical Data

Chemistry shown per ASTM A240/A240M (HR / CR). Switch the standard above to compare other editions.

CCrNiMnSiFePS
≤0.0824.0-26.019.0-22.0≤2.0≤1.5Bal.≤0.045≤0.030

Applications

Typical Equipment Applications

Industrial Furnace

Industrial Furnace

Exhaust System

Exhaust System

Gas Turbine

Gas Turbine

High Temperature Flange System

High Temperature Flange System