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ER70S-2
Keywords:
ER70S-2
Category:
Carbon Steel Solid MIG Wires
AWS A5.18 ER70S-2 | GB/T 8110 ER50-2 | EN ISO 14341-A-G 49A 3 C1/M21 S2
Application
Applicable to the welding of mild steel, low-carbon steel, and 490MPa grade carbon steel structures, widely used in shipbuilding, boiler manufacturing, pressure vessels, pipelines, and general steel structure fabrication requiring high-quality welds.
Characteristics
ER70S-2 is a solid carbon steel MIG welding wire with ultra-low carbon and impurity content, featuring excellent weldability, stable arc, extremely low spatter, easy slag removal, and smooth weld bead appearance. It offers outstanding all-position welding performance, and the deposited metal has excellent low-temperature toughness, high ductility, and superior crack resistance, especially suitable for critical structural welding.
CHEMICAL COMPOSITION OF DEPOSITED METAL (%)
| Item | C | Mn | Si | S | P | Cr | Ni | Mo | V | Cu | Al+Ti+Zr |
| Guarantee Value | 0.06~0.15 | 0.90~1.40 | 0.40~0.70 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.03 | ≤0.50 | 0.05~0.20 |
| Typical Value | 0.09 | 1.10 | 0.55 | 0.010 | 0.012 | 0.02 | 0.01 | 0.001 | 0.002 | 0.10 | 0.12 |
Mechanical Properties Of Deposited Metal
| Item | Tensile Strength Rm/MPa | Yield Strength ReL/Rp0.2 MPa | Elongation A% | Impact Value KV₂ (J)-30℃ |
| Guarantee Value | ≥500 | ≥420 | ≥22 | ≥27 |
| Typical Value | 550 | 430 | 28 | 95 |
Recommended Welding Parameter: (DC+)
| Wire Size(mm) | 0.8 | 1.0 | 1.2 | 1.6 |
| Curremt(A) | 50-170 | 70-210 | 80-320 | 120-480 |
Note On Usage
1.Apply mixed gas shield (Ar 80% + CO₂ 20%) or pure CO₂ gas shield; CO₂ gas purity is above 99.5%.
2.The CO₂ shield gas flow during welding should be controlled between 15~25L/min.
3.The extension elongation of welding wire should be controlled between 10~20mm.
4.Preheat and interpass temperature are generally not required for thin plates; for thick plates (>20mm), preheat to 100-150℃ if necessary.
PACKAGING AND SHIPPING
FACTORY INVENTORY
ABOUT KELVIX
Shandong Kelvix Group Co., Ltd., is a modern private enterprise specializing in the scientific research, development, production and sales of welding materials and metal wire products. As a technology-driven innovative company, we are located in Liaocheng City, Shandong Province, and are committed to providing high-quality welding consumables and metal wire products to global customers.
The company has passed ISO9001 Quality Management System, ISO14001 Environmental Management System, and ISO45001 Occupational Health and Safety Management System certifications, and has obtained EU CE, DB, VdTÜV and multiple classification society certifications.
FAQ
CORE ADVANTAGES
01
• Supply Chain Strength:
We have established long-term strategic partnerships with major domestic steel groups (such as Baowu Steel, HBIS Group, Shagang Group, Shandong Steel Group, etc.), ensuring stable supply of raw materials and high-quality standards. Through large-volume procurement and deep cooperation, we are able to offer competitive prices and reliable delivery schedules.
02
•Export Performance & Case Examples:
Our annual export volume of metal wire products exceeds300,000 tons, reaching more than 30 countries and regions across Southeast Asia, the Middle East, Europe, and South America.
03
• Representative cases include:
- Supplying high-strength galvanized steel strand for a large photovoltaic power station project in the Middle East (used for support cables).
- Providing a full range of galvanized steel wire products for a national power grid upgrade project in Southeast Asia, which was highly recognized by the overseas customer.
04
• Full-Process Export Services:
We provide one-stop services including business negotiation, contract execution, letter of credit processing, customs declaration and inspection, international logistics, overseas installation and training, and spare parts supply.
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