News
Credibility ,Stainless steels are called as high-alloy steels. Due to the presence of large amounts of chromium in the range of 4 to 30%, they have high corrosion resistance than other steels. Stainless steels are classified into martensitic, ferritic and austenitic based on their crystalline structure. However, stainless steels present in the form of a combination of martensitic and austenitic steels are known as precipitation-hardened steels.
The following datasheet will provide more details about grade 330 stainless steel, which has high strength and resistance to carburization and oxidation at 1200°C (2200°F).
Alloy 330 is an austenitic, nickel-chromium-iron-silicon alloy that has outstanding resistance to oxidation and carburization up to 2200°F with high strength. The excellent resistance to oxidation and carburization is provided by the high nickel and chromium content of the alloy, further enhanced by its silicon content. Alloy 330’s ultra high nickel content of 34 to 37% also provides high resistance to chloride stress corrosion cracking and embrittlement from the precipitation of sigma phase in most furnace atmospheres. Alloy 330 also has a low coefficient of expansion, excellent ductility, and high strength.
Alloy 330 is extensively used in high temperature environments where resistance to the combined effects of thermal cycling and carburization is necessary. Applications include:
Alloy 330 will not respond to heat treatment; will only harden upon cold work
Rigid mounts, sulfurized lubricants, positive feeds and slow speeds are recommended for machining grade 330 stainless steel.
Grade 330 stainless steel can be welded using GAW techniques.
Hot working of grade 330 stainless steel can be performed at 1149 to 1177°C (2100 to 2150°F).
It is difficult to perform cold working in grade 330 stainless steel as the steel has high strength and work hardening rate. However, this steel can be cold worked using strong forces.
Grade 330 stainless steel can be annealed at 1121 to 1204°C (2050 to 2200°F).
Element | Average Nominal % |
---|---|
Chromium | 18.00 – 22.00 |
Nickel | 34.00 37.00 |
Carbon | 0.08 Max |
Silicon | 1.00 – 1.50 |
Manganese | 2.00 Max |
Phosphorus | 0.03 Max |
Sulfur | 0.03 Max |
Copper | 1.00 Max |
Iron | Balance |
Tensile Strength – ksi (min.) | 0.2% Offset Yield Strength – ksi (min.) | Elongation in 2 inches – % (min.) | Hardness – Rockwell B |
---|---|---|---|
70 | 30 | 30 | 90 |
Density (lb. / cu. in.) |
Specific Gravity | Specific Heat (Btu/lb Deg F – [32-212 Deg F]) |
Magnetic Permeability | Modulus of Elasticity Tension |
---|---|---|---|---|
0.289 | 7.99 | 0.11 | 1.02 | 28.5 |
Other designations that are equivalent to grade 330 stainless steel include the following.
Tel No:+86-18267732328 / Email:[email protected]
Address:Longwan District, Wenzhou, Zhejiang Province, China.
Copyright Notice © www.yaang.com Yaang Pipe Industry Co., Limited All rights reserved.
Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.