AK-TH650NQII
Standard:
TB/T 2374 ER65-G
Description: TH650NQ-Ⅱ is a gas shielded solid welding wire specially used for C80 series large axle heavy-duty railway freight car steel plate S450EW. The atmos-pheric corrosion ability is more than 50% higher than that of ordinary Q450-NQR1 steel plate.
Application: Mainly used for welding of steel plate S450EW for C80 series large axle heavy-duty railway freight cars.
Typical Chemical Composition(%):
C:0.05 Mn:1.20 P:0.015 S:0.010 Si:0.60 Cu: 0.40 Ni: 3.0-5.0 Cr: 1.0-2.0
Typical Mechanical Properties(%):
Test Item Tensile strength (MPa) Yield Stress (MPa) Elongation (%) Impact values (J)
Standard ≥650 ≥500 ≥15 ≥34J/-40℃
Typical Value 685 565 18 58
