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Ragnar Welding Supplies, based in Jakarta, Indonesia, is a leading manufacturer and supplier of high-quality welding consumables, specializing in AWS Class ER308/308H Submerged Arc Welding (SAW) wires and flux. Committed to excellence and reliability, Ragnar Welding Supplies caters to diverse industries, including construction, shipbuilding, and heavy machinery, providing products that ensure strong, durable, and precise welds. With a focus on innovation, stringent quality control, and customer satisfaction, the company has earned a reputation for delivering consistent performance and technical support. Ragnar Welding Supplies stands out as a trusted partner for all welding needs in Indonesia.
| Classification | AWS A5.9, ER308/308H |
| Form | Welding Fluxes and Wires |
| Type Of Welding | Submerged Arc Welding |
| Thickness available | Upto 4 mm |
| AWS ER308/308H SAW & Flux Application & uses |
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AWS Class ER308/308H SAW wires and flux are designed for welding austenitic stainless steels, particularly 18Cr-8Ni grades. Composition: ER308 contains 0.04% C, 18% Cr, 8% Ni; ER308H has higher carbon (0.04–0.10%) for elevated-temperature strength. Mechanical Properties: Both offer excellent corrosion resistance, high toughness, and good ductility. Typical tensile strength ranges 580–690 MPa, yield strength 310–450 MPa, with elongation 35–45%. The matching flux ensures smooth arc, minimal spatter, and deep penetration. These consumables provide reliable, crack-resistant welds for structural and high-temperature stainless steel applications.
| C | Mn | Si | Cr | Ni | S | P | Mo | Cu |
| 0.04-0.08 | 1.0-2.5 | 0.30-0.65 | 19.5-22.0 | 9.0-11.0 | 0.03 | 0.03 | 0.50 | 0.75 |
| Tensile Strength | 86,500 psi |
|---|---|
| Yield Strength | 57,500 psi |
| Elongation (%) | 39% |
| Diameter | Amperage | Volts | Shielding Gas | |
| GTAW | 1/16” | 80-110 | 100% Ar | |
| 3/32” | 90-130 | |||
| 1/8” | 120-175 | |||
| 5/32” | 150-220 | |||
| GMAW Spray Transfer | .030” | 130-200 | 23-27 | 98% Ar/ 2% O2 (35 cfh) |
| .035” | 150-225 | 23-26 | ||
| .045” | 200-325 | 24-28 | ||
| 1/16” | 300-350 | 24-27 | ||
| GMAW Short-Circuit | .030” | 50-150 | 14-20 | 90% He/ 7½% Ar/ 2½% CO2 (25 cfh) |
| .035” | 60-200 | 14-22 | ||
| .045” | 75-225 | 15-23 | ||
| 1/16” | 100-250 | 16-23 | ||
| SAW | 3/32” | 275-350 | 28-30 | Suitable Flux |
| 1/8” | 350-450 | 29-32 |
At Ragnar Welding Supplies, we take pride in being one of Indonesia’s trusted suppliers of high-quality welding consumables. Our expertise lies in AWS Class ER308/308H SAW & Flux, engineered for precision, durability, and resistance to corrosion. With a strong commitment to quality and customer satisfaction, we provide welding solutions that support industries across construction, energy, shipbuilding, and manufacturing.
AWS Class ER308/308H SAW wires and flux are widely used for welding austenitic stainless steels, especially 18Cr-8Ni grades. They are ideal for applications requiring corrosion resistance, high strength, and durability. Common uses include chemical and petrochemical equipment, pressure vessels, food processing machinery, heat exchangers, and structural components exposed to high temperatures or harsh environments. ER308H is preferred for elevated-temperature service due to its higher carbon content. These consumables ensure smooth, defect-free welds with deep penetration and excellent mechanical properties, making them a trusted choice for industrial fabrication, shipbuilding, power plants, and stainless steel construction projects.
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