tianjin bridge thj422 welding rod e4303 carbon steel electrode household ordinary iron anti-stick electrode

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J422

J40.50

Complies with GB/T 5117 E4303

ISO 2560-B-E 43 03 A

Explanation: J422 is a carbon steel electrode with a titanium-calcium type coating. It is compatible with both direct and alternating current and can be used for welding in any position. It has excellent welding process properties and good mechanical properties; the arc is stable, with little spatter, easy slag removal, and easy re-arcing; the weld shape is beautiful, with wide, narrow, thin, or thick welds, making welding easy and efficient.

Application: Used for welding important low-carbon steel structures and low-alloy steel structures with low strength grades, such as Q235, 09MnV, 09Mn2, etc.

Fusion Coated Metal Chemical Composition (%)

Experimental project	C	Mn	Si	S	P	Ni	Chromium	Mo	V
Guaranteed Value	≤0.20	≤1.2	≤1.00	≤0.035	≤0.040	≤0.30	≤0.20	≤0.30	≤0.08
example value	0.078	0.39	0.18	0.018	0.023	0.020	0.032	0.008	0.005

Fusion Coated Metal Mechanical Properties

Experimental project	Room (N/mm2)	Rel (N/mm2)	A(%)	KV2(J)
Experimental project	Room (N/mm2)	Rel (N/mm2)	A(%)	0℃	-20℃
Guaranteed Value	≥430	≥330	≥20	≥27	≥47
example value	475	390	29.5	97	73

X-ray inspection requirements: Level II

Reference Current (AC, DC)

Welding rod diameter (mm)	φ2.0	φ2.5	φ3.2	φ4.0	φ5.0
Welding Current (A)	40~70	60~100	80~140	140~220	180~240

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Update time：20251026144709

2 .. 5	CN¥ 5.64	1535 kg available
3.2	CN¥ 5.23	4480 kg available
4 .. 0	CN¥ 5.23	9340 kg available
2.0	CN¥ 6.59	2880 kg available
5.0	CN¥ 5.23	0 kg available	Out of Stock