类别

焊丝牌号

符合GB/ T8110

相当于AWS 5.18

C

Si

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Mn

Mo

Ti

P

S

Cr

Ni

Cu

耐候钢用

BX·H08MnSiCuCrNiI

TB/T 2374-1999
H08MnSiCuCrNiⅠ

0.07

0.62

1.2

-

-

0.012

0.011

0.3

0.3

0.3

BX·H08MnSiCuCrNiII

TB/T 2374-1999 H08MnSiCuCrNiⅡ

0.08

0.57

1.2

-

-

0.011

0.012

0.3

0.3

0.3

BX·H08NiCuMnSiⅠ

TB/T 2374-1999 H08NiCuMnSiⅠ

0.07

0.64

1.45

-

-

0.012

0.012

0.05

0.5

0.3

BX·H08NiCuMnSiII

TB/T 2374-1999 H08NiCuMnSiII

0.09

0.44

1.2

-

-

0.014

0.012

0.05

0.5

0.3

BX·BH550NQ-II
(BX·TH550NQ-II)

暂无相应标准

0.08

0.46

1.4

-

-

0.015

0.012

0.45

0.46

0.3

机械性能典型示例

焊丝牌号

屈服强度N/mm2 

抗拉强度N/mm2 

延伸(%)

冲击J
(-29℃)

特点及用途

保护
气体

焊接
方法

BX·H08MnSiCuCrNiI

395

486

28

32(-40)

440 N/mm2级耐候钢用

CO2

GMAW

BX·H08MnSiCuCrNiII

415

520

27

45(-40)

CO2+Ar

BX·H08NiCuMnSiⅠ

432

545

28

45(-40)

500 N/mm2级耐候钢用

CO2

BX·H08NiCuMnSiII

425

550

30

32(-40)

CO2+Ar

BX·BH550NQ-II
(BX·TH550NQ-II)

465

580

26

75(-40)

550 N/mm2级耐候钢用

CO2+Ar