400 series stainless steel coil cold rolled/hot rolled

Product Information

400 series stainless steel introduction

Brand name	MELLOW
Product Name	400 series stainless steel coil
Length	As required
Width	100-2000mm or as required
Thickness	0.1mm-300mm or as required
Standard	AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc.
Technique	Hot rolled / cold rolled
Surface Treatment	NO.1, NO.2B, Hairline, Brushed, BA, NO.3, NO.4, NO.240, NO.400, NO.8 etc.
Tolerance	±0.01mm
Material	403, 410, 410S,420, 430, 431, 440A,444 ect.
Shipment time	Within 15-20 workdays after receiving deposit or L/C.
Export packing	Waterproof paper, and steel strip packed.
Export packing	Standard Export Seaworthy Package. Suit for all kinds of transport,or as required

The chromium content of 400 series stainless steel is generally 12%-30%, usually does not contain nickel, sometimes contains a small amount of Mo, Ti, Nb and other elements, and the matrix structure is ferritic in the use state. Common models are 430, 409L and so on. The chromium content is not less than 12% (generally 12%-18%), the carbon content is high, the use of state structure is martensite, and its mechanical properties can be adjusted by heat treatment. The common models are 410, 420, 440, 436L, etc.

Corrosion resistance

In the case of the same amount of chromium, in the atmosphere, fresh water and nitric acid and other oxidizing media, its corrosion resistance is equivalent to 300 series stainless steel, and better than 200 series stainless steel. Some ferritic stainless steels have better stress corrosion resistance than 300 series stainless steels in some specific environments, such as media containing chloride

High temperature oxidation resistance

It has excellent high temperature oxidation resistance, suitable for applications in high temperature environments, such as cookware or industrial ovens, and can maintain good stability and performance under high temperature conditions

Cost effective

Because it does not contain or only contains a small amount of nickel, its cost and price are low, compared with 300 series stainless steel, has a high cost performance, in the case of corrosion resistance requirements are not extremely high, is an affordable material choice

Magnetic property

Containing martensitic structure and iron, it has normal magnetic characteristics and can play a role in applications requiring magnetism, such as induction cookers, magnetic separators, etc

Good thermal conductivity

The thermal conductivity of ferritic stainless steel is large, and the heat conductivity is good, although it is not as good as copper or aluminum, but it is enough for some daily applications such as kitchenware and so on, and can achieve better heat transfer effect

High strength and wear resistance

Martensitic stainless steel has high carbon content, high strength and hardness, and good wear resistance; Some ferritic stainless steel can also improve its strength through cold work hardening, which is suitable for occasions requiring higher strength and wear resistance, such as tools, mechanical parts, etc

Thermal expansion coefficient is small

The coefficient of thermal expansion of ferritic stainless steel is small, which makes it perform well under the conditions of thermal expansion, cold contraction and thermal cycling, and it is not easy to produce large deformation and stress due to temperature changes


400 series stainless steel	300 series stainless steel

200 series stainless steel	500 series stainless steel

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