〔45〕低温压力容器用碳钢及合金钢锻件

（Carbon and Alloy Steel Forgings for Pressure Vessels for Low Temperature Service)

标准代号

规格号码

记号

化学成分（%)Chemical composition

拉伸试验 Tensile requirements

C

Si

Mn

P

S

N

Ni

Cr

Mo

Cu

V

Nb

Al

厚度（mm)

降伏强度(Mpa)

抗拉强度(Mpa)

伸长度(%)

CNS

11067

SFL1

≦0.3

≦0.35

≦1.35

≦0.03

≦0.03

-

-

-

-

-

-

-

-

-

≧225

440-590

≧38

JIS

G3205

SFL1

≦0.3

≦0.35

≦1.35

≦0.03

≦0.03

-

-

-

-

-

-

-

-

-

≧225

440-590

≧38

ASTM

A350

LF1

≦0.3

0.15-0.30

0.60-1.35

≦0.035

≦0.04

-

≦0.4

≦0.3

≦0.12

≦0.4

≦0.03

≦0.02

-

-

≧205

415-585

≧25

CNS

11067

SFL2

≦0.3

≦0.35

≦1.35

≦0.03

≦0.03

-

-

-

-

-

-

-

-

-

≧245

490-640

≧30

JIS

G3205

SFL2

≦0.3

≦0.35

≦1.35

≦0.03

≦0.03

-

-

-

-

-

-

-

-

-

≧245

490-640

≧30

ASTM

A350

LF2

≦0.3

0.15-0.30

0.60-1.35

≦0.035

≦0.04

-

≦0.4

≦0.3

≦0.12

≦0.4

≦0.03

≦0.02

-

-

≧250

485-655

≧22

DIN

-

TStE315

≦0.16

≦0.45

0.7-1.5

≦0.03

≦0.025

≦0.02

≦0.3

≦0.3

≦0.08

≦0.3

-

≦0.03

≦0.02

60≦t≦70

≧295

440-560

≧23

CNS

11067

SFL3

≦0.2

≦0.35

≦0.9

≦0.03

≦0.03

-

3.25-3.75

-

-

-

-

-

-

-

≧255

490-640

≧35

JIS

G3205

SFL3

≦0.2

≦0.35

≦0.9

≦0.03

≦0.03

-

3.25-3.75

-

-

-

-

-

-

-

≧255

490-640

≧35

ASTM

A350

LF3

≦0.2

0.20-0.35

≦0.9

≦0.035

≦0.04

-

3.25-3.75

≦0.3

≦0.12

≦0.4

≦0.03

≦0.02

-

-

≧260

485-655

-

DIN

-

10Ni14

≦0.15

≦0.35

0.3-0.8

≦0.02

≦0.01

-

3.25-3.75

-

-

-

≦0.05

-

-

≦100

≧345

490-640

≧22