420c Stainless Steel Supply

420C stainless steel is a martensitic stainless steel that contains approximately 12% chromium. It is known for its high hardness, strength, and wear resistance. 

420c Stainless Steel Properties

Corrosion Resistance: 420C stainless steel has fair corrosion resistance in mildly corrosive environments, but it is not recommended for use in corrosive environments due to its low chromium content.

Hardness: 420C stainless steel is known for its high hardness, which can be achieved through heat treatment. It has a hardness of up to 50 HRC.

Wear Resistance: 420C stainless steel has excellent wear resistance due to its high hardness. It is commonly used in applications that require resistance to abrasion and wear, such as knives, cutting tools, and bearings.

Machinability: 420C stainless steel has fair machinability. It can be easily machined using automatic screw machines, lathes, and milling machines.

Weldability: 420C stainless steel is not recommended for welding due to its high carbon content, which can cause cracking during welding.

Magnetic Properties: 420C stainless steel is magnetic in all conditions.

Chemical Composition


Mechanical Properties

ConditionTensile (Rm)Yield (R0.2%)ElongationHardness
Annealed800 max245HB Max
Quenched & Tempered800-10006501055

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