AK-TH500NQII
Standard:
TB/T 2374 ER50-G
Description: AK-TH500NQ-II is a low-alloy weathering steel Ar-rich (80%Ar+20%CO2 ) gas shielded welding wire. Since the welding wire contains an appropriate amount of alloy components such as Cu, Cr, and Ni, and the content of S and P is strictly controlled, the weld has Excellent atmospheric corrosion resistance, greatly improve the service life of the product and meet the needs of various specific climatic conditions, the weld metal has excellent mechanical properties and good crackres-istance.
Application: For welding of Q400NQRI and equivalent grade weathering steel.
Typical Chemical Composition(%):
C:0.10 Mn:0.6-1.2 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 ≥60J/-40℃
Typical Value 565 475 26 115
