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Home » Products » Welding electrodes for low alloy steel » AWS:E12015-G

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AWS:E12015-G

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E12015-G
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Mighty

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Product Description

GB：E8515-G AWS：E12015-G

Current：Used for welding pressure vessels made of low-alloy high strength steel with tensile strength of about 830MPa and some other structures, such as 14CrMnMoVB, 30CrMo, 35CrMo, etc.
Main Applications：

J857Cr

According with GB E8515-G
Corresponding with AWS E12015-G

Introduction: J857Cr is a kind of low-alloy high strength steel electrode with low-hydrogen natrium type coating. DCRP (Direct Current Reversed Polarity). All-position welding.

Uses: Used for welding pressure vessels made of low-alloy high strength steel with tensile strength of about 830MPa and some other structures, such as 14CrMnMoVB, 30CrMo, 35CrMo, etc.

Chemical Composition of Deposited Metal (%)

Chemical Composition	C	Mn	Si	S	P	Mo	Cr	V
Guarantee Value	≤0.15	≥1.00	≤0.60	≤0.035	≤0.035	0.50~1.00	0.7~1.00	0.05~0.15
General Result	≤0.10	~1.60	≤0.40	≤0.020	≤0.020	~0.60	~0.80	~0.05

Mechanical Properties of Deposited Metal

Test Item	R_m(MPa)	R_eL或R_p0.2(Mpa)	A(%)	KV₂(J)
Guarantee Value	≥830	≥740	≥12	—(normal temperature)
General Result	860~950	≥750	12~18	≥27

Diffusible Hydrogen Content in Deposited Metal:≤5.0ml/100g(Chromatography or Mercury Method)

X-ray Radiographic Inspection:ⅠDegree

Reference Current(DC+)

Electrode Diameter(mm)	φ2.5	φ3.2	φ4.0	φ5.0
Welding Current (A)	60~90	80~110	130~170	160~200

Instructions:
1.The electrodes must be baked under 350-400℃ for an hour before welding, put into a 100-150℃insulation can and taken as soon as they are needed.
2.The stains on the weldments like rust must be cleared away, and the weldments must be preheated to about 200℃.
3.Weldments can be tempered under 600-650℃ after welding so as to eliminate internal stress

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