汽车机械结构无缝钢管

汽车机械结构无缝钢管are applicable for general structure and automobile mechanical structure.

Standard：

用途：适用于一般结构、汽车机械结构用无缝钢管。

Main grade： 10#, 20#, 35#, 45#, 16Mn, 1020, 1045, 1541, E275, E315, 34CrMo4, 42CrMo4, STKM13A, STKM13B, etc.

经协商，我们还可以供应其他牌号的钢管。

机械性能：
Standard

等级

Strength of extension
(MPa)

Yield strength
(MPa)

Elongation
(%)

GB/T 8162

10

≥335

≥205

≥24

20

≥390

≥245

≥20

35

≥510

≥305

≥17

45

≥590

≥335

≥14

16Mn

≥490

≥325

≥21

EN 10297-1

E275

≥410

≥275

≥22

E315

≥450

≥315

≥21

34CrMo4

≥1000

≥800

≥11

42CrMo4

≥1100

≥900

≥10

JIS G3445

STKM13A

≥375

≥215

≥30

STKM13B

≥440

≥305

≥20
化学成分
Standard

等级

化学成分

C

Si

锰

P, S

Cu

镍

钼

Cr

GB/T 8162

10

0.07-0.14

0.17-0.37

0.35-0.65

≤0.035

≤0.25

≤0.25

/

≤0.15

20

0.17-0.24

0.17-0.37

0.35-0.65

≤0.035

≤0.25

≤0.25

/

≤0.25

35

0.32-0.40

0.17-0.37

0.50-0.80

≤0.035

≤0.25

≤0.25

/

≤0.25

45

0.42-0.50

0.17-0.37

0.50-0.80

≤0.035

≤0.25

≤0.25

/

≤0.25

16Mn

0.12-0.20

0.20-0.55

1.20-1.60

≤0.035

≤0.25

≤0.25

/

≤0.25

ASTM A519

1020

0.18-0.23

/

0.30-0.60

≤0.040

/

/

/

/

1045

0.43-0.50

/

0.60-0.90

≤0.040

/

/

/

/

1541

0.36-0.44

/

1.35-1.65

≤0.040

/

/

/

/

EN10297-1

E275

≤0.21

≤0.35

≤1.40

≤0.030

/

/

/

/

E315

≤0.21

≤0.30

≤1.50

≤0.030

/

/

/

/

34CrMo4

0.30-0.37

≤0.40

0.60-0.90

≤0.035

/

/

0.15-0.30

0.90-1.20

42CrMo4

0.38-0.45

≤0.40

0.60-0.90

≤0.035

/

/

0.15-0.30

0.90-1.20

JIS G3445

STKM13A

≤0.25

≤0.35

≤0.60

≤0.040

/

/

/

/

STKM13B

≤0.25

≤0.35

≤0.60

≤0.040

/

/

/

/
Remarks：
HR：hot rolled CW：冷加工冷拔 SR：stress relieved 去除应力
A:退火的退火 N:正常化正火 HF：热轧

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