AK-ER70SD
Standard:
EN ISO ——
AWS A5.28 ER100S-G
GB/T 8110 ER69-G
Characteristics and applications: AK-ER70SD is NiMo type 700MPa high toughness low alloy steel gas shielded welding wire, arc stability, small spatter, beautiful weld shape, deposited metal has good comprehensive mechanical properties. Suitable for welding 700MPA steel structure. Commonly used in construction machinery, lifting machinery, ships, bridges, hydropower, pipelines and pressure vessels and other structures of the welding.
Note:
1. The protective gas is argon-rich or CO2-rich gas with a flow rate of 15-20L/min.
2. The weld must be cleaned of water, oil, embroidery and other impurities.
3. When the current is more than 250A, the wire dry elongation should be 20-25mm.20-25mm.
Typical Chemical Composition(%):
C:0.070 Si:0.46 Mn:1.50 S:0.004 P:0.012 Ni: 1.34 Cu：0.13 Mo: 0.45 Al:0.01 Ti:0.09
Mechanical properties of deposited metal:
Tensile strength (MPa) : ≥690
Yield Stress (MPa) : ≥610
Elongation (%) : ≥16
Impact values (J) : 130J/-20℃, 125J/-40℃
Recommended :
1.0mm: F(H)-80-250A/ V(OH)-70-160A
1.2mm: F(H)-100-300A/ V(OH)-80-180A
1.6mm: F(H)-170-390A
