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347 Stainless Steel | Stainless Steel Supply

347 stainless steel is a type of austenitic stainless steel alloy with a high resistance to intergranular corrosion. It contains a minimum of 17% chromium, 10% nickel, and 0.08% carbon, which makes it resistant to sensitization during welding and high-temperature applications.

The addition of niobium to 347 stainless steel enhances its resistance to intergranular corrosion, making it suitable for use in applications involving exposure to corrosive environments, such as chemical processing, pharmaceuticals, and food processing.

347 stainless steel also has good mechanical properties, including high strength and excellent toughness, and is often used in applications that require high performance under extreme conditions. It is commonly used in the manufacturing of aircraft exhaust components, furnace parts, and jet engine components.

Chemical composition


Note: These values are typical

Mechanical properties

Tensile strengthYield strengthElongation
515 Mpa205 Mpa40%

Note: These values are approximate

Physical properties

Density7.93 g/cm3
Melting Point1398 – 1446 °C (2550 – 2635 °F)
Thermal Conductivity16.3 W/(m*K)
Specific Heat500 J/(kg*K)
Electrical Resistivity7.4e-7 ohm-m
Modulus of Elasticity200 GPa (29.0 x 106 psi)
Magnetic PropertiesSlightly magnetic

Note: These values are approximate

As a premium supplier of stainless steel, we offer a wide range of grades, sizes and finishes to suit your needs.
Size: according to customer requirements
Standards: GB, ASTM, EN, JIS, etc.
Austenitic type
Ferritic type
Martensitic type

Looking forward to your inquiry!