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420 grade stainless steels have high tensile strength after heat treatment. Under normal conditions, this material has an average corrosion resistance. 420 is included in the martensitic stainless steel group. It is very good workable in its annealed state and the chip material of 420 materials which are annealed is easily broken and does not make any sawdust. This quality stainless material can be subjected to high surface hardness after heat treatment.
Grading Quality Characteristics
Vulnerability to be beaten:
NOTE: Scores are indicated on 5 and are intended to facilitate understanding of the nature of the material. It is only intended to make comparisons between qualities without relying on any value.
420 grade stainless steel is often used in the machinery industry, petroleum and petrochemical industries, food and food production plants, decoration, transportation, sapphires, pistons and valves.
Max Diameter (mm)
Mechanical Properties at Room Temperature
Summary of Quality Characteristics
It is numbered 1.4021 quality stainless according to 420 stainless EN standard. There are two other versions of this stainless steel quality that are often used. These are 1.4028 (X30Cr13) and 1.4034 (X46Cr13) grade stainless steel materials.
420 grade stainless is also called X20Cr13 according to EN standard.
The most important feature of this quality stainless material is that it can be hardened by heat treatment.
420 (1.4021) grade stainless steel material has a high surface hardness after heat treatment and the heat treated material is resistant to friction.
This stainless quality is classified as martensitic stainless steel.
This stainless steel quality has a comfortable workability while tempered. The most important feature of the chips is easily broken and does not chip.
The stainless steel of this quality attracts magnets and has an average corrosion resistance.