Solid Wire
ER100S-G Welding Wire
ER100S-G is a copper-coated ultra-high strength low alloy solid wire for GMAW (MIG/MAG) and GTAW (TIG). It is designed for welding high-strength low-alloy st...
ER100S-G
ER100S-G is a copper-coated ultra-high strength low alloy solid wire for GMAW (MIG/MAG) and GTAW (TIG). It is designed for welding high-strength low-alloy structural steels, providing excellent tensile strength, outstanding crack resistance and stable mechanical properties for heavy-load structural applications.
Features
• High-strength alloy formula delivers ultra-high tensile and yield strength, fully meeting the welding requirements of 100-grade high-strength steel structures.
• Excellent anti-cracking performance and structural stability, suitable for high-rigidity, heavy-load and high-stress welding components.
• Stable welding arc, low spatter rate and neat weld bead formation, ensuring easy operation and high-efficiency construction.
• Uniform chemical composition and reliable process adaptability, guaranteeing consistent mechanical performance of welded joints.
Diameter & Packaging
MIG：0.8 / 1.0 / 1.2 / 1.6 mm 5KG Spool / 15KG Spool
TIG：2.0 / 2.4 / 3.2 mm 5kg plastic tube
Welding Parameters
Polarity: DC+ (DCRP)
Shielding Gas
MIG/MAG: Ar + 5%~15% CO₂, Flow rate: 15–20 L/min
TIG: Pure Argon (99.99%)
Preheat & Interpass Temperature
120~180 ℃ for thick plates or high-restraint joints to prevent hydrogen-induced cold cracking.
Typical Φ1.2 mm MAG parameters: Current 140~200 A; Voltage 21~25 V
Deposited Metal Mechanical Properties
Tensile Strength: ≥690 MPa (100 ksi)
Yield Strength: ≥590 MPa
Elongation: ≥14 %
Charpy V-notch: ≥27 J (Room temperature)
Applications
Suitable for welding 100ksi grade high-strength low-alloy structural steels. Widely used in heavy engineering machinery, crane components, high-rise steel structures, offshore platform accessories and high-load pressure structural parts.
Welding Precautions
• General-purpose ultra-high strength low-alloy welding wire; not applicable for heat-resistant steel, cryogenic steel or stainless steel welding.
• Remove all oil, rust, scale and moisture from the groove and surrounding base metal to avoid porosity and slag inclusions.
• Maintain strict preheat and interpass temperature control to reduce residual stress and prevent brittle cold cracking.
• Reasonable post-weld heat treatment is required for thick-wall and heavy-load components to optimize weld comprehensive performance.
• Not suitable for long-term high-temperature, ultra-low temperature and strong corrosive service environments.