THQ-60D (ER80S-G)

ER80S-G Low-Alloy Steel Welding Wire | High Strength Solid Wire
AWS Classification: AWS A5.28 ER80S-G

Application

  • Shipbuilding
  • Pressure Vessel
  • Energy Industry
  • Heavy Machinery

DETAILS

THQ-60D (ER80S-G) is a high-strength low-alloy steel welding wire engineered for joining high-tensile steels. Formulated for superior mechanical properties and crack resistance, it delivers excellent arc stability, smooth bead appearance, and reliable performance on critical structural fabrications.

Features

  • High tensile strength (80 ksi / 550 MPa class) with superior yield properties
  • Low-alloy formulation providing excellent crack resistance and weld toughness
  • Smooth, stable arc with minimal spatter and easy slag-free cleanup
  • Optimized for critical structural welding requiring reliable mechanical integrity

Typical Applications

  • High-strength structural steel fabrication and bridge construction
  • Pressure vessels, boilers, and heavy-duty piping systems
  • Earthmoving machinery, cranes, and heavy equipment manufacturing
  • Shipbuilding, offshore platforms, and high-yield steel structures
  • Joining matching high-strength and low-alloy carbon steels

Welding Positions

  • PA / PB / PC / PD / PE / PF / PG

 

WARNING

  • Rust, oil, moisture, and other contaminants must be removed from the weld zone before welding.
  • The mechanical properties of all-weld metal are determined by heat input; lower heat input is generally preferred to higher heat input.
Test ItemRm (MPa)Rel / RP₀.₂ (MPa)A (%)KV₂ (J) -30℃
Requirement550-740≥460≥17≥27
Typical Result60053125100
ElementCMnSiSPMoTiCu
Requirement (%)≤0.121.20-1.900.40-0.80≤0.025≤0.0250.20-0.500.05-0.20≤0.50
Typical Result (%)0.081.750.590.0040.0110.330.110.12
Diameter (mm)1.01.21.6
Current (A)70-23080-350120-500