J506 Welding Electrode

J506 is a carbon steel welding rod with low hydrogen potassium coating. It can be used for both AC and DC, and can be used for all-position welding. It has good welding process performance, stable arc, less spatter, and easy slag removal. The deposited metal has excellent mechanical properties and crack resistance, and has good low-temperature impact toughness.

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Chemical composition of deposited metal

Project	C	Mn	Si	S	P	Ni	Cr	Mo	V
Guaranteed value	≤0.10	0.80-1.40	≤0.65	≤0.030	≤0.035	≤0.30	≤0.20	≤0.30	≤0.08
Example	0.07	1.10	0.35	0.012	0.018	0.030	0.035	0.005	0.004

Mechanical properties of deposited metal

Project	Tension strengthRm/MPa	Yield StrengthRel/Rp0.2 MPa	ElongationA（%）	Charpy V-notch impact absorption energyKV2（J）
Project	Tension strengthRm/MPa	Yield StrengthRel/Rp0.2 MPa	ElongationA（%）	-20℃	-30℃
Guaranteed value	≥490	≥400	≥22	≥47	≥27
Example	545	440	30	175	169

Reference current

Welding diameter（mm）	Φ2.5	Φ3.2	Φ4.0	Φ5.0
Welding length(mm)	300	350	400	400
Welding current（A）	60~ 100	80~140	110~210	160~230

Features:

Usage:

It is used for welding medium carbon steel and low alloy steel structures, such as 16Mn, 09Mn2Si and ship grade A, B, D, E steel, etc. It is also used for welding thick plates and carbon steel structures with poor weldability.

Precautions:

⒈Before welding, the electrode must be baked at 350-380℃ for 1 hour and can be used immediately after baking.

⒉ Before welding, impurities such as rust, oil, moisture, etc. of the weldment must be removed.

⒊Short arc operation must be used during welding, and the swing range should not be too large.