〔41〕压力容器用碳钢锻件

（Carbon Steel Forgings for Pressure Vessels)

标准代号

规格号码

记号

化学成分（%)Chemical composition

拉伸试验 Tensile requirements

硬度（HB)

C

Si

Mn

P

S

Ni

Cr

Mo

V

降伏强度(Mpa)

抗拉强度(Mpa)

伸长度(%)

CNS

8699

SFVC1

≦0.3

≦0.35

0.40-1.35

≦0.03

≦0.03

-

-

-

-

≧205

410-560

≧21

-

JIS

G3202

SFVC1

≦0.3

≦0.35

0.40-1.35

≦0.03

≦0.03

-

-

-

-

≧205

410-560

≧21

-

ASTM

A181

Class 60

≦0.35

≦0.35

≦1.1

≦0.05

≦0.05

-

-

-

-

≧205

≧415

≧22

-

ASTM

A266

Class 1

≦0.35

0.15-0.35

0.40-1.05

≦0.025

≦0.025

-

-

-

-

≧205

415-585

≧23

121-170

CNS

8699

SFVC2A

≦0.35

≦0.35

0.4-1.1

≦0.03

≦0.03

-

-

-

-

≧245

490-640

≧18

-

JIS

G3202

SFVC2A

≦0.35

≦0.35

0.4-1.1

≦0.03

≦0.03

-

-

-

-

≧245

490-640

≧18

-

ASTM

A181

Class 70

≦0.35

≦0.35

≦1.1

≦0.05

≦0.05

-

-

-

-

≧250

≧485

≧18

-

ASTM

A266

Class 2

≦0.35

0.15-0.35

0.40-1.05

≦0.025

≦0.025

-

-

-

-

≧250

485-655

≧20

-

CNS

8699

SFVC2B

≦0.3

≦0.35

0.70-1.35

≦0.03

≦0.03

-

-

-

-

≧245

490-640

≧18

-

JIS

G3202

SFVC2B

≦0.3

≦0.35

0.70-1.35

≦0.03

≦0.03

-

-

-

-

≧245

490-640

≧18

-

ASTM

A266

Class 4

≦0.3

0.15-0.40

0.80-1.35

≦0.025

≦0.025

-

-

-

-

≧250

485-655

≧20

137-197

ASTM

A541

Class 1A

≦0.3

0.15-0.40

0.70-1.35

≦0.025

≦0.025

≦0.4

≦0.25

≦0.1

≦0.05

≧250

480-650

≧20

-