_牌号JR 

_国标GB 

_各国标准 

_C 

_Mn 

_Si 

_S 

_P 

_Cu

_HO8Mn2SIA

_ER49-1

_≤0.11

_1.80-2.10

_0.65-0.95

_≤0.03

_≤0.03

_≤0.35

_ER50-4

_ER50-4

_{AWS ER70S-4}

_0.07-0.15

_1.00-1.50

_0.65-0.85

_≤0.035

_≤0.025

_≤0.35

_ER50-6

_ER50-6

_{AWS ER70S-6  JIS YGW12}

_0.06-0.15

_1.40-1.85

_0.80-1.15

_≤0.035

_≤0.025

_≤0.35

_ER50-7

_ER50-7

_{AWS ER70S-7}

_0.07-0.15

_1.50-2.00

_0.50-0.80

_≤0.035

_≤0.025

_≤0.35

_牌号JR

_国标GB

_各国标准

_{抗拉强度Mpa}

_{屈服强度Mpa}

_{延伸率(％)}

_温度

_冲击值J

_HO8Mn2SIA

_ER49-1

_≥490

_≥372

_≥20

_常温

_≥47

_ER50-4

_ER50-4

_{AWS ER70S-4}

_≥500

_≥420

_≥22

_ER50-6

_ER50-6

_{AWS ER70S-6  JIS YGW12}

_≥500

_≥420

_≥22

_-29℃

_≥27

_ER50-7

_ER50-7

_{AWS ER70S-7}

_≥500

_≥420

_≥22

_-29℃

_≥27

_焊丝直径

_0.6

_0.8

_0.9

_1.0

_1.2

_1.6

_焊丝电流

_25-110

_40-140

_50-200

_70-250

_80-350

_170-450

_焊丝电压

_12-19

_16-21

_17-25

_17-27

_18-30

_23-43

_重量(kg)

_1/5/10

_15/20

_15/20

_15/20

₂₀

₂₀