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

碳钢气保焊丝

BX·ER50-6

ER50-6

ER70S-6

0.08

0.86

1.52

-

-

0.010

0.012

-

-

0.22

BX·ER49-1

ER49-1

-

0.06

0.72

1.92

-

-

0.015

0.012

-

-

0.22

BX·ER50-G

ER50-G

ER70S-G

0.07

0.84

1.60

-

适量

0.012

0.011

-

-

0.22

BX·ER50-3

ER50-3

ER70S-3

0.08

0.49

1.10

-

-

0.011

0.012

-

-

0.22

低合金高强度气保焊丝

BX·G60

ER60-G

ER80S-G

0.09

0.62

1.72

0.42

0.12

0.012

0.012

-

-

0.22

BX·G70

ER70-G

-

0.09

0.65

1.76

0.52

0.12

0.014

0.012

0.18

1.45

0.22

BX·G80

ER80-G

ER100S-G

0.09

0.58

1.8

0.52

0.12

0.013

0.012

0.42

2.2

0.22

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·ER50-6

450

552

32

123

50公斤级钢板焊接用,全位置焊接，优良的低温韧性，可用于重要构件焊接

CO2

GMAW

BX·ER49-1

430

540

28

82

50公斤级钢板焊接用,全位置焊接

BX·ER50-G

450

550

30

66

50公斤级钢板焊接用,全位置焊接，低飞溅，高熔敷效率

BX·ER50-3

445

552

31

96

50公斤级高张力钢用,低温韧性好

BX·G60

530

650

25

80

60公斤级高强板焊接，

BX·G70

620

730

22

132

70公斤级高强板焊接，良好的低温韧性

Ar+20%CO2

BX·G80

700

830

19

68

80公斤级高强板焊接，良好的低温韧性