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Home » Products » Welding electrodes for low alloy steel » GB：E4303-G

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GB：E4303-G

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Product Description

GB：E4303-G
AWS：
Current：Specially used for welding atmospheric corrosion-resistant steel structures like 12MnCrCu, etc.
Main Applications：

J422CrCu

According with GB E4303-G

Introduction: J422CrCu is a kind of atmospheric corrosion-resistant steel electrode with lime-titania type coating. AC/DC. All-position welding. It has excellent welding performance, excellent mechanical properties, stable arc and easy reignition. The weld metal has excellent atmospheric corrosion-resistance.

Uses: Specially used for welding atmospheric corrosion-resistant steel structures like 12MnCrCu, etc.

Chemical Composition of Deposited Metal (%)

Chemical Composition	C	Mn	Si	S	P	Cu	Cr
Guarantee Value	≤0.12	0.3~0.9	≤0.4	≤0.030	≤0.035	0.20~0.40	0.20~0.50

Mechanical Properties of Deposited Metal

Test Item	R_m(MPa)	R_eL或R_p0.2(Mpa)	A(%)	KV₂(J)
Guarantee Value	≥420	≥330	≥22	≥27(-20℃)
General Result	440~500	≥340	22~32	≥50(-20℃)

X-ray Radiographic Inspection:ⅡDegree

Reference Current(AC, DC)

Electrode Diameter(mm)	φ2.5	φ3.2	φ4.0	φ5.0
Welding Current (A)	60~100	80~130	140~200	180~240

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