330 Stainless Steel Supply

330 Stainless Steel Properties

Corrosion Resistance: 330 stainless steel is known for its excellent corrosion resistance in highly corrosive environments, including acidic and alkaline environments. It is resistant to corrosion from chemicals, solvents, and salts.

Strength: 330 stainless steel has excellent high-temperature strength, making it suitable for applications that require high levels of mechanical strength at elevated temperatures. It has a minimum tensile strength of 620 MPa and a minimum yield strength of 310 MPa.

Weldability: 330 stainless steel is known for its good weldability, making it a popular choice for welding, brazing, and soldering. It can be welded using common welding techniques, such as TIG, MIG, and stick welding.

Ductility: 330 stainless steel has good ductility, which means that it can be easily formed and shaped without cracking or breaking. This property makes it ideal for applications that require complex shapes or designs.

Magnetic Properties: 330 stainless steel is non-magnetic in the annealed condition but may become slightly magnetic after cold working.

Heat Resistance: 330 stainless steel has excellent heat resistance up to 1149°C (2100°F). It can be used in high-temperature applications such as furnace parts, heat exchangers, and exhaust systems.

Chemical Properties

ElementAverage Nominal %
Chromium18.00 – 22.00
Nickel34.00 37.00
Carbon0.08 Max
Silicon1.00 – 1.50
Manganese2.00 Max
Phosphorus0.03 Max
Sulfur0.03 Max
Copper1.00 Max

Mechanical Properties

Tensile Strength – ksi (min.)0.2% Offset Yield Strength – ksi (min.)Elongation in 2 inches – % (min.)Hardness – Rockwell B

Physical Properties

(lb. / cu. in.)
Specific GravitySpecific Heat
(Btu/lb Deg F – [32-212 Deg F])
Magnetic PermeabilityModulus of Elasticity Tension

330 Stainless Steel Applications

330 stainless steel, also known as Incoloy 330 or UNS N08330, is an austenitic heat and corrosion-resistant alloy with high strength and excellent oxidation resistance up to high temperatures. Here are some common applications of 330 stainless steel:

  1. Heat Treatment Equipment: 330 stainless steel is often used in the manufacturing of heat treatment equipment, such as fixtures, retorts, and conveyors, where resistance to high temperatures and thermal cycling is crucial.
  2. Industrial Furnaces: Components in industrial furnaces, including radiant tubes, muffles, and fixtures, may be made from 330 stainless steel due to its ability to withstand high temperatures and resist oxidation.
  3. Chemical Processing Equipment: 330 stainless steel is employed in chemical processing equipment, such as reactors, heat exchangers, and pipes, where resistance to corrosive chemicals and elevated temperatures is required.
  4. Power Generation: Components in power plants, including boiler tubes, superheater tubes, and heat exchangers, may use 330 stainless steel for its resistance to high-temperature oxidation and corrosion.
  5. Aerospace Applications: In certain aerospace applications where high-temperature resistance is critical, 330 stainless steel may be used for components such as exhaust systems and afterburner parts.
  6. Automotive Heat Exchangers: 330 stainless steel is utilized in the manufacturing of automotive heat exchangers, including exhaust systems and components that require resistance to high temperatures.
  7. Muffle Tubes: In heat-treating furnaces and industrial ovens, muffle tubes made from 330 stainless steel are used for their ability to withstand high temperatures and resist oxidation.
  8. Sulfuric Acid Plants: Due to its corrosion resistance to sulfuric acid, 330 stainless steel may be used in the construction of equipment for sulfuric acid production plants.
  9. Petrochemical Industry: Equipment used in the petrochemical industry, such as heat exchangers, tubes, and piping systems, may utilize 330 stainless steel for its high-temperature and corrosion-resistant properties.
  10. Waste Incineration: Components in waste incineration plants, including furnace parts and exhaust systems, may be made from 330 stainless steel due to its ability to withstand high temperatures and corrosive environments.

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