AWS E8015-C2 Low Temperature Steel Electrode

AWS E8015-C2 Low Temperature Steel Electrode

W907Ni
GB：E5515-C2
AWS：E8015-C2
Current：Used for welding 3.5Ni low temperature low-alloy steel structures under -90��.

W907Ni

According with GB E5515-C2
Corresponding with AWS E8015-C2


Introduction: W907Ni is a kind of low temperature steel electrode containing Ni with low-hydrogen natrium type coating. DCRP (Direct Current Reversed Polarity). All-position welding. The weld metal still has excellent impact toughness under -90℃.


Uses: Used for welding 3.5Ni low temperature low-alloy steel structures under -90℃.


Chemical Composition of Deposited Metal (%)
Chemical Composition
C
Mn
Si
S
P
Ni
Guarantee Value
≤0.12
≤1.25
≤0.60
≤0.035
≤0.035
3.00~3.75

Mechanical Properties of Deposited Metal
Test Item
Rm(MPa)
ReL或Rp0.2(Mpa)
A(%)
KV2(J)
Guarantee Value
≥540
≥440
≥17
≥27(-90℃)

Diffusible Hydrogen Content in Deposited Metal: ≤6.0ml/100g(Glycerine Hydrogen Test)

X-ray Radiographic Inspection: ⅠDegree

Reference Current (DC+)
Electrode Diameter(mm)
φ2.0
φ2.5
φ3.2
φ4.0
φ5.0
Welding Current (A)
40~70
60~90
90~120
140~180
170~210

Instructions:
1.The electrodes must be baked under about 350℃ for an hour before welding, and used as soon as baking is completed.
2.The weldments must be preheated under about 150℃ before welding to avoid cracks.
3.If the stress in the weldments needs eliminating, they should be tempered under 600-650℃ after welding.

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