400 Series Stainless Steel Sheet

400 series stainless steel is a group of martensitic stainless steels known for their high strength, hardness, and wear resistance. They are magnetic and offer excellent mechanical properties, commonly used in applications where strength and durability are crucial.

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3. Provide strict quality checks for each part and each process before export.

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400 series stainless steel sheet
400 stainless steel sheets


400 series stainless steels typically contain chromium (Cr) as the primary alloying element and varying amounts of carbon (C). The carbon contributes to their martensitic structure, which provides high hardness and strength. Common grades within the 400 series stainless steel include 410, 410S, 420, 430, 439, and 441.

Name400 Series Stainless Steel
Grade410, 410S, 420, 430, 440
Width1000, 1219, 1500mm or as customzied
LengthMax. 4000mm, Customized
SurfaceBeadblasting, Mirror, Colored, Satin, Embossed, Stamped, Hairline, Etching, Patina, etc.
ProcessingBending, Welding, Decoiling, Punching, Cutting
Delivery7~25 days
MOQSheets: 2tons / Coils: 6tons
PackingWaterproof Paper, Stainless Steel Belt, Wooden Pallet, Customized
Export toRussia, Korea, Turkey, Saudi Arabia, Malaysia, Vietnam, India, Dubai, etc.

Container Size
20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High)
40ft HC: 12032mm(Lengh)x2352mm(Width)x2698mm(High)
Price TermFOB, CNF, CIF

Chemical Properties (%)

430 & 440 Series Stainless Steel (%) :

C:≤0.03, Si:≤1.0, Mn:≤2.0, Cr:18.0~20.0, Ni:11.0~15.0, S:≤0.03, P:≤0.045

410/410S Stainless Steel (%) :

C:≤0.08, Si:≤1.0, Mn:≤2.0, Cr:17.0~19.0, Ni:9.0~12.0, S:≤0.03, P:≤0.045

Pysical Properties

Tensile strength σb (MPa): 500 ~ 1500

Electrical Conductivity (%): 1.25 ~ 2.5

Conditions yield strength (MPa): 200 ~ 1400

Elongation δ5 (%): 2% ~ 20%

Hardness: 20 ~ 60 (HRC)

Melting point (℃): 1400 ~ 1450 (2550 ~ 2640 degrees Fahrenheit)

Specific heat capacity [J/(kg·K)]: 460 ~ 500

Resistivity (µΩ·cm): 50 ~ 80

Coefficient of Thermal Expansion (µm/m·°C): 10 ~ 12

Longitudinal elastic modulus (GPa): 190 ~ 215 

The specific values for these properties can vary significantly between different grades within the 400 series stainless steel. Therefore, for precise and detailed information about a specific grade’s mechanical and physical properties, it’s advisable to consult with our engineer.

Available Processing

We have high-tech equipment for processing stainless coils and sheets/plates with skilled workers.

1. Cut to length

2. Despoiling and slitting

3. Grinding and brushing

4. Film protection

5. Etching

6. Embossing

7. Patina

8. Mirror or other finish

Foshan Topson Stainless Steel Co., Ltd

Common Applications

400 series stainless steel alloys, known for their high strength, hardness, and wear resistance, find application in various industries. It’s important to note that while the 400 series stainless steels excel in strength and wear resistance, they may offer a different level of corrosion resistance than the 300 series stainless steels. Here are some common uses and applications of the 400 series stainless steels:

♦ Cutlery and Kitchenware: 400 series stainless steels, particularly grades 410 and 420, produce cutlery, knives, blades, and kitchen utensils.
♦ Bearings and Valves: 440 steel is utilized in the production of bearings, valves, and other components requiring high strength, hardness, and wear resistance.
♦ Cutting Tools: High-carbon stainless steel alloys from the 400 series, like grade 440, fabricate cutting tools such as industrial knives, razor blades, and shears.
♦ Pump & Valve: 410 and 416 stainless steel are utilized to manufacture pump and valve components. They can withstand abrasion in fluid-handling systems.
♦ Automotive Components: These applications include exhaust systems, mufflers, catalytic converters, and decorative trim.
♦ Mold and Tooling: Due to its high hardness, 420 stainless steel is commonly used to produce molds, dies, and tooling for various manufacturing processes.
♦ Surgical Instruments: 410 stainless steel is often employed in manufacturing surgical and dental instruments. Surgical tools, dental picks, and orthopedic implants can use 400 series stainless steel for construction.

Whether for large architectures or shops, you can always expect the highest quality from us. Even in the extremely quality-sensitive art sector, our 400 series stainless steel products are recognized by the most famous artists.

Frequently Asked Questions

Q1. Are you a factory, manufacturer or trader?

A1. Foshan TOPSON Stainless Steel Co., Ltd. is a professional stainless steel factory with nearly 15 years of experience in stainless steel production. All our goods are dispatched directly from the TOPSON mill.

Q2. How can you ensure the quality of your product?

A2. Our stainless steel sheets and coils have to go through TWO/THREE checks in the manufacturing process, including production, cutting sheets (If requested) and packing.

Q3. There are a lot of 400 series; which is the best for you?

A3. 410 stainless steel offers good corrosion resistance, moderate strength, and high hardness. It suits cutlery, surgical instruments, valves, and pump parts; Grade 420 steel provides higher hardness and wear resistance than 410. It is commonly used in blades, surgical equipment, mold components, and cutting tools; Grade 430 exhibits good corrosion resistance, especially in mild environments. It is commonly used for decorative purposes, automotive trim, appliances, and architectural applications. 440 stainless steel is a high-carbon martensitic alloy known for exceptional hardness and wear resistance. It is suitable for applications requiring high strength, hardness, and sharpness, such as knives, cutting tools, and bearings.

Related Products

200 series stainless steel sheet

200 Series Stainless Steel

200 series stainless steel is austenitic and non-magnetic. They offer good corrosion resistance, especially in indoor or mildly corrosive environments.

300 series stainless steel sheet

300 Series Stainless Steel

300 series stainless steel sheets are classified as austenitic and are hardenable only by cold working methods. These alloys are widely used in various industries and applications.

304 stainless steel

Duplex Stainless Steel

Duplex stainless steel is a type of stainless steel that combines the desirable properties of both austenitic and ferritic stainless steel. Excellent stress corrosion cracking and weldability.

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