Brand number

Chemical composition(%)

c

Mn

Si

Cr

Mo

S

p

Zgmn13-1

1.00/1.40

11/14

0.30/1.00

≤0.040

≤0.090

Zgmn13-2

0.090/1.35

11/14

0.30/1.00

≤0.040

≤0.070

Zgmn13-3

0.95/1.35

11/14

0.30/0.80

≤0.035

≤0.070

Zgmn13-4

0.090/1.30

11/14

0.30/0.80

1.5/2.5

≤0.040

≤0.070

Zgmn13-5

0.75/1.30

11/14

0.30/0.80

2.0-2.5

≤0.040

≤0.070

Zgmn9cr2

1.1/1.2

8.5/9.5

0.30/0.80

2.0-2.5

≤0.040

≤0.070

Zgmn17cr2

1.0/1.4

16/19

0.3/1.0

1.5/2.0

≤0.040

≤0.070

Crand numbermechanical property

Os(mpa)

Ob(mpa)

O5(%)

Ak(j/cm2)

Hbs

microstructue

Zgmn13-1

635

20%

A or a+c

Zgmn13-2

685

20%

147

≤300

A or a+c

Zgmn13-3

735

30%

147

≤300

A or a+c

Zgmn13-4

735

20%

≤300

A or a+c

Zgmn13-5

390

A or a+c

A:austenite     A+c:austenite+small amount of carbide