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Squash test, extended test, water pressure test,heat treatment, NDT

Chemical Composition of Material

Material

201

201

304

C

≤0.15

≤0.15

≤0.08

Si

≤1.00

≤1.00

≤1.00

Mn

5.5-7.5

7.5-10

≤2.00

P

≤0.06

≤0.06

≤0.045

S

≤0.03

≤0.03

≤0.03

Cr

16-18

17-19

18-20

N

3.5-5.5

4--6

8-10.5

Mechanical Property

Material Item 

201

202

 

Tensile Strength

≥535

≥520

 

Yield Strength

≥245

≥205

 

Extension

≥30%

≥30%

 

Hardness (HV)

<253

<253