200 series stainless steel, 202 stainless steel, 202 stainless steel knowledge

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11-May-2024

200 series stainless steel is one family of stainless steel. 200 series stainless steel has become popular in China and South East Asia, particularly.

200 series stainless steel is austenitic and not magnetic, therefore, it is very difficult to distinguish from the widely used 300 series stainless steel, because it is also non-magnetic. This has led to confusion in the marketplace.

In recent years, 200 series stainless steel in use has been in low-nickel, therefore, it has less corrosion resistance. This has led to dissatisfy about it.

200 series stainless steel is a technically valid family of stainless steel, but, like all stainless steel grade, it has its limitations.

202 stainless steel chemical composition:

C≤	Si≤	Mn≤	P≤	S≤	Cr	Ni	N
0.15	1.0	7.5-10	0.06	0.03	17.0-19.0	4.0-6.0	≤0.25

202 stainless steel mechanical property:

Properties		Conditions
Properties		T (°C)	Treatment
Density (×1000 kg/m3)	7.7-8.03	25
Poisson's Ratio	0.27-0.30	25
Elastic Modulus (GPa)	190-210	25
Tensile Strength (Mpa)	1158	25	oil quenched, fine grained, tempered at 425°C
Yield Strength (Mpa)	1034
Elongation (%)	15
Reduction in Area (%)	53
Hardness (HB)	335	25	oil quenched, fine grained, tempered at 425°C

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Tags: JIS G4303 SUS301 Austenitic Stainless Steel, JIS G4303 SUS304 Austenitic Stainless Steel, JIS G4303 SUS304L Austenitic Stainless Steel