400 Series Stainless Steel

409 Stainless Steel
Type 409 Stainless Steel (UNS S40900) is a stabilized ferritic stainless steel that provides improved oxidation and corrosion resistance compared to carbon steel. Ease of fabrication combined with its corrosion resistance and economy have significantly broadened its utilization in automotive exhaust and other non-automotive applications. ASTM A240 defines three (3) sub categories of Type 409 stainless steel; UNS S40910, UNS S40920 and UNS S40930. Each of these designations has a slightly different Ti or Nb stabilization requirement. Each of these compositions can be supplied as UNS S40900 unless the purchaser specifically identifies a specific composition. It is produced with enhanced formability characteristics known as “High Performance” or “Ultra Form” in the industry. – Cleveland Metal is your source for 409 Stainless Steel.

Data Bulletin

410 Stainless Steel
Type 410 Stainless Steel is a martensitic stainless steel that provides good corrosion resistance plus high strength and hardness. It is magnetic in both the annealed and hardened conditions. A wide range of properties can be developed with different heat treatments.

Data Bulletin

410S Stainless Steel
410S Stainless Steel is a non-hardening modification of Type 410. Control of the chemistry balance (low carbon and optional additions of Ti or Nb) minimizes austenite formation at high temperatures, restricting the alloy’s ability to harden. The material remains soft and ductile even when the material is rapidly cooled from above the critical temperature. This low hardening characteristic helps to prevent cracking when the steel is welded or exposed to high temperatures. The alloy is ferritic in the annealed condition and ferromagnetic.

Data Bulletin

430 Stainless Steel
Type 430 Stainless Steel is a low carbon ferritic stainless steel which, in mildly corrosive environments or atmospheric exposures, has corrosion resistance approaching that of some nickel-bearing stainless steels. This alloy is oxidation resistant at elevated temperatures. Type 430 is ductile, does not work harden readily, and can be formed using a variety of roll forming or mild stretch bending operations as well as the more common drawing and bending processes. Type 430 is ferromagnetic.

Data Bulletin

We are your source for 430 Stainless Steel

439 Stainless Steel
Type 439 Stainless Steel is a ferritic stainless steel designed to resist corrosion in a variety of oxidizing environments from fresh water to boiling acids. It may be used in either the annealed, cold formed or as-welded condition in many applications where other stainless steel alloys such as Type 304, Type 410, Type 409 and Type 430are used. Type 439 may also be used in many oxidizing environments where Type 304 is considered adequate in terms of general corrosion resistance but is subject to chloride stress corrosion cracking. When application temperatures are too high for Type 409, Type 439 provides good oxidation and corrosion resistance for many automotive exhaust system components and residential furnace primary heat exchangers.

Data Bulletin

18Cr-Cb Stainless Steel
Type 18 Cr-Cb Stainless Steel provides a more effective solution than Type 409 to many automotive exhaust and heat applications, due to its higher oxidation resistance, improved creep resistance and moderate formability. Type 18 Cr-Cb is a ferritic stainless steel that is stabilized with both titanium and columbium. When given a high temperature final solution anneal, the alloy exhibits dramatic creep resistance. The dual stabilization prevents carbide sensitization during welding and high temperature exposure, and makes the alloy nonhardenable by heat treatment.

Data Bulletin

Available finishes – Hot Roll ( HRAP) , 2B , 2D, #3 polished, #4 polished, Buff, and BA.

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