Er310 Welding Wire
ER310 is an austenitic stainless steel welding wire designed for high-temperature industrial applications, such as petrochemical plants, power equipment, and furnace manufacturing. It excels in oxidation resistance (up to 1035°C) and thermal corrosion resistance, ideal for welding 310-series stainless steel (25Cr-20Ni) and dissimilar metals.
ER310 Stainless Steel Welding Wire | High-Temperature Oxidation Resistance, Designations & Comparison Guide
Product Overview
ER310 is an austenitic stainless steel welding wire designed for high-temperature industrial applications, such as petrochemical plants, power equipment, and furnace manufacturing. It excels in oxidation resistance (up to 1035°C) and thermal corrosion resistance, ideal for welding 310-series stainless steel (25Cr-20Ni) and dissimilar metals.
Key Features & Composition
High-Temperature Performance
High chromium-nickel content (Cr 25-28%, Ni 20-22.5%) ensures durability in environments ≤950°C.
Mechanical Properties
Tensile strength ≥550 MPa, elongation ≥25% (tested up to 610 MPa, 38%).
Process Compatibility
Suitable for MIG/TIG welding; pre-weld cleaning and argon shielding gas are critical.
Performance Comparison
|
Wire Type |
High-Temperature Resistance |
Corrosion Resistance |
Typical Applications |
|
ER310 |
Up to 1035°C |
Heat/oxidative corrosion |
High-temperature pipes |
|
Inconel 601 |
Up to 1180°C |
Sulfur/carburization |
Nuclear reactors |
|
Monel 400 |
≤600°C |
Seawater/HF acid |
Marine equipment |
Comparative summary: ER310 outperforms Inconel 601 in terms of cost-effectiveness and is suitable for medium to high temperature industrial scenarios;
Monel 400 performs better in extreme corrosive environments such as sulfur-containing or acidic media, but has weaker high-temperature performance.
Application Fields
Petrochemical industry
Welding high-temperature pipelines, reactor lining.
Power equipment
Repair boiler components and gas turbine components.
High temperature manufacturing
310S stainless steel furnace body connection, high manganese steel dissimilar welding.
Welding parameters
TIG welding
Current 80-150A (diameter 1.6mm), shielding gas flow rate 8-15 L/min;
MIG welding
Current 180-250A (φ 1.2mm), gas flow rate 20-25 L/min.
Post treatment
No heat treatment is required after welding, but sudden cooling should be avoided to prevent stress cracking.
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International Designations
|
Standard |
Designation |
|
|
AWS A5.9 |
ER310 |
|
|
China YB/T 5092 |
H12Cr26Ni21Si |
|
|
Japan JIS |
Y310 |
|
|
Europe EN |
Refer to AWS standards |
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