ER330

 

ER330 is a high-nickel-chromium austenitic stainless steel argon arc welding wire with a nickel (Ni) content of approximately 35% and a chromium (Cr) content of approximately 16%. It is specifically designed for extreme high-temperature environments (above 980°C). This welding wire exhibits excellent oxidation resistance and anti-peeling properties, is suitable for a variety of welding processes, and is available in coil (coil) form to meet automated and semi-automated welding needs.

 

• Excellent high-temperature performance: Exhibits superior performance under sustained high temperatures, resists oxidation and carburization, and can withstand severe thermal shock.
• Excellent corrosion resistance: Demonstrates good resistance to a variety of corrosive media.
• Good weldability: Stable arc, smooth wire feeding, aesthetically pleasing weld formation, and minimal spatter.
• Multiple packaging options: In addition to straight strips, coils (coiled wire) of various diameters are also available.

 

Item	Test value	standard
C	0.216	0.18 - 0.25
P	0.005	≤0.03
S	0.002	≤0.03
Cr	16.3	15.0 - 17.0
Ni	35.8	34.0 - 37.0
Mo	0.172	≤0.75
Mn	1.83	1.0 - 2.5
Si	0.511	0.3 - 0.65
Cu	0.072	≤0.75

 

 

• Tensile strength of deposited metal: ≥550 MPa
• Elongation: ≥30%
• Operating temperature: Up to 1200°C 

 

 

Standard Diameter: Common wire coil specifications include 0.8mm, 1.0mm, 1.2mm, 1.6mm, etc.

Packaging Form: Precision wound wire (coiled wire), net weight is typically 5kg/coil, 10kg/coil, or 15kg/coil (specific weight can be customized).

Welding Current: Recommended range is approximately 90-180A (depending on diameter and process).

 

 

This product is widely used for welding and repairing components that require high temperature resistance and oxidation resistance, such as:

• Industrial furnaces and kilns, heat treatment furnace accessories (furnace rollers, radiant tubes, muffle tanks)
• Hot working jigs, trays, quenching baskets
• Cracking furnace tubes and conversion tubes in the petrochemical industry
• Heat-resistant components for power plant boilers
• Welding of similar heat-resistant steels (such as SUH330/RA330/1.4886).

 

 

Shielding Gas: Pure argon (Ar) or an Ar + He mixture is recommended for shielding.

Gas Flow Rate: 15-25 L/min is recommended.

Pre-welding Cleaning: Thoroughly remove oil, moisture, scale, and other impurities from the surface of the workpiece.

Interpass Temperature: It is recommended to keep it below 150°C.

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