AK-50QNH
Standard:
GB/T 8110 ER50-G
Description: AK50QNH is a low-alloy steel gas shielded solid welding wire. The weld has excellent atmospheric corrosion resistance, and its service life meets the needs of various specific climatic conditions. The weld metal has excellent mecha-nical properties and good crack resistance.
Application: Used for welding of important bridge corrosion-resistant steel such as Q355NH, etc..
Typical Chemical Composition(%):
C:0.10 Mn:0.6-1.20 P:0.025 S:0.020 Si:0.60 Cu: 0.20-0.50 Ni: 0.20-0.60 Cr: 0.30-0.90
Typical Mechanical Properties(%):
Test Item Tensile strength (MPa) Yield Stress (MPa) Elongation (%) Impact values (J)
Standard ≥500 ≥400 ≥22 ≥47J/-40℃
Typical Value 565 475 26 115
Recommended welding parameters:
0.8mm:F/H-50-180A / V(OH)-50-100A
1.0mm:F/H-80-250A / V(OH)-70-160A
1.2mm:F/H-100-360A / V(OH)-80-220A
