Products
ER310
AWS:
AWS A5.9
Category:
Description
Chemical components
| C | Mn | Si | Cr | Ni | Mo | P | S | Cu | N | Ti |
| 0.08-0.15 | 1.00-2.50 | 0.30-0.65 | 25.00-28.00 | 20.00-22.50 | ≤0.75 | ≤0.030 | ≤0.030 | ≤0.75 | —— | —— |
Product Description
ER310 is a premium high-chromium high-nickel austenitic stainless steel solid welding wire compliant with AWS A5.9 and EN ISO 14343-A G 25 20 Mn standards, specifically designed for welding high-temperature and corrosion-resistant austenitic stainless steels. Featuring a nominal composition of 24.0-26.0% chromium, 19.0-22.0% nickel, and carbon content ≤0.15%, it delivers excellent high-temperature strength and oxidation resistance, with a full austenitic deposited metal structure. Common diameters range from 0.8-3.2 mm, packaged in coils (15 kg) or straight sticks (5 kg), operating with DC reverse connection (DCEP) for versatile application in high-temperature industrial environments.
Features
· ER310 offers superior high-temperature performance, with excellent oxidation resistance up to 1100°C, making it ideal for high-temperature service applications.
· It features stable arc transfer, minimal spatter, smooth weld bead formation and easy slag removal, ensuring excellent weldability and adaptability to all welding positions (flat, horizontal, vertical-up, overhead).
· The wire delivers exceptional tensile strength (≥550 MPa), yield strength (≥240 MPa) and elongation (≥35%), with good toughness even at elevated temperatures.
· Its high Cr-Ni content provides outstanding corrosion resistance to oxidation, sulfidation and high-temperature gases, suitable for harsh corrosive and high-heat environments.
· Compatible with GMAW (Ar+(2-5%)CO₂) and GTAW (pure Ar) processes, with DC reverse connection (DCEP preferred), it requires pre-drying only for critical applications, ensuring low maintenance and operational flexibility.
Applications
Widely used in high-temperature and corrosive industrial sectors, ER310 is primarily applied for welding Type 310, 310S stainless steels and other high-Cr-Ni austenitic alloys. It is extensively used in thermal power plants, petrochemical refineries, and industrial furnaces for fabricating and repairing high-temperature components such as furnace liners, boiler tubes, heat exchangers and exhaust manifolds. Suitable for welding dissimilar steels involving high-temperature service, it is also applied in chemical processing equipment, incinerators, and marine components exposed to high heat and corrosive media, delivering reliable performance in harsh operating conditions.
Company Introduction
Hangzhou Lin'an Dayang Welding Materials Co., Ltd., a professional welding materials manufacturer founded in 1995, adheres to the core philosophy of "Innovative R&D, Precision Manufacturing, Meticulous Service".
With over 30 years of industry expertise, we have continuously increased investment in production upgrading and technological R&D, solidifying our reputation as a trusted supplier of industrial welding consumables globally.
Production Capacity & Product Strength
Equipped with multiple advanced automated production lines, we boast an annual output of 5,000 tons of premium welding products.
Our core portfolio covers nickel-based welding wires, stainless steel welding wires, flux-cored welding wires and high-performance specialty electrodes.
Backed by a professional R&D team with multiple patents, we also provide tailored OEM/ODM welding solutions to meet clients’ diverse application needs.
After-sales service process
FAQS
What is the primary use of ER310 welding wire?
ER310 is primarily used for welding Type 310, 310S stainless steels and other high-chromium high-nickel austenitic alloys. It is extensively applied in high-temperature and corrosive industrial sectors, such as fabricating and repairing furnace liners, boiler tubes, heat exchangers and exhaust manifolds in thermal power plants, petrochemical refineries and industrial furnaces.
How does ER310 resist high-temperature oxidation and corrosion?
Its high chromium (24.0-26.0%) and nickel (19.0-22.0%) content forms a dense oxide film on the weld surface, providing excellent oxidation resistance up to 1100°C. It also exhibits outstanding resistance to sulfidation and high-temperature gases, making it suitable for harsh high-heat and corrosive environments.
What are the recommended welding parameters for ER310?
It is compatible with GMAW and GTAW processes, using Ar+(2-5%)CO₂ for GMAW and pure argon for GTAW. DC reverse connection (DCEP) is preferred, and pre-drying is only required for critical applications, ensuring convenient operation and stable weld quality.
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