CO2 Shielded Arc Welding Wire|ER70S-4

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GB：ER50-4
AWS：ER70S-4
Application： Used for welding all kinds of 500MPa structural steel parts. Especially for vehicles, ships, bridges, building pipes and other constructional weld.：

ER70S-4

According with GB ER50-4
Corresponding with AWS ER70S-4
JIS YGW12

Introduction: SM50-4 welding wire has CO2 or Ar+CO25%-20% as shielding gas. It has excellent welding performance. It has good one-time shaping performance. When used in argon-rich mixed gas arc welding, the bead is delicate and beautiful.

Applications: Used for welding all kinds of 500MPa structural steel parts. Especially for vehicles, ships, bridges, building pipes and other constructional weld.

Chemical Composition of Welding Wire(%)

C	Mn	Si	S	P	Cu
0.07~0.15	1.0~1.5	0.65~0.85	≤0.035	≤0.025	≤0.50

Examples of Chemical Composition of Deposited Metal (%)

C	Mn	Si	S	P	Cu
0.09	1.18	0.62	0.019	0.013	0.17

Mechanical Properties of Deposited Metal

Test Item	R_m(MPa)	R_eL或R_p0.2(Mpa)	A(%)	KV₂(J)
Guarantee Value	≥500	≥420	≥22	Not Specified(-29℃)
General Result	543	451	24	73

Reference Current (DC+)

Wire Size(mm)	Welding Current(A)	CO₂ Flow Rate(L/min)
φ0.8	50～140	15
φ1.0	50～220	15～20
φ1.2	80～350	15～25
φ1.6	170～550	20～25

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