KOWEL Co., Ltd.
Yangsan maker of stainless welding wire, filler rods and special stainless wire
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Products

Stainless Steel MIG Welding Wire (KWM)
- 21 grades, AWS ER308–ER2209 and 400-series
21 models
| Model | Series | AWS class | JIS / KS | Application | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|
| KWM-2209 | MIG wire | ER2209 | - | Duplex stainless steel | 21.50–23.50 | 8.50–10.50 | 2.50–3.50 |
| KWM-308 | MIG wire | ER308 | Y308 | 18Cr-8Ni stainless | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWM-308L | MIG wire | ER308L | Y308L | Low-carbon 18Cr-8Ni stainless | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWM-308H | MIG wire | ER308H | - | Medium-carbon 18Cr-8Ni stainless | 19.50–22.00 | 9.00–11.00 | 0.5 max |
| KWM-308LSi | MIG wire | ER308LSi | Y308LSi | Low-carbon 18Cr-8Ni stainless (Si-enhanced) | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWM-316 | MIG wire | ER316 | Y316 | 18Cr-12Ni-Mo stainless | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWM-316L | MIG wire | ER316L | Y316L | Low-carbon 18Cr-12Ni-Mo stainless | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWM-316LSi | MIG wire | ER316LSi | Y316LSi | 18Cr-12Ni-Mo stainless (Si-enhanced) | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWM-309 | MIG wire | ER309 | Y309 | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWM-309L | MIG wire | ER309L | Y309L | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWM-309LSi | MIG wire | ER309LSi | Y309LSi | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWM-309LMo | MIG wire | ER309LMo | - | Dissimilar stainless joints (Mo) | 23.00–25.00 | 12.00–14.00 | 2.00–3.00 |
| KWM-310 | MIG wire | ER310 | Y310 | 25Cr-20Ni stainless | 25.00–28.00 | 20.00–22.50 | 0.75 max |
| KWM-312 | MIG wire | ER312 | Y312 | Dissimilar metals and buttering | 28.00–32.00 | 8.00–10.50 | 0.75 max |
| KWM-347 | MIG wire | ER347 | Y347 | 18Cr-8Ni-Nb stainless | 19.00–21.50 | 9.0–11.0 | 0.75 max |
| KWM-409Ti | MIG wire | ER409Ti | Y409Ti | Automotive exhaust systems | 10.50–11.70 | 0.75–1.00 | 0.10 max |
| KWM-409LTi | MIG wire | ER409LTi | Y409LTi | Automotive exhaust systems | 12.30–12.80 | 0.30 max | 0.50 max |
| KWM-410 | MIG wire | ER410 | Y410 | 13Cr martensitic stainless; corrosion/wear overlay | 11.50–13.50 | 0.60 max | 0.75 max |
| KWM-420J2 | MIG wire | - | - | 13Cr stainless and carbon steel wear/corrosion overlay | 12.50–14.00 | 0.60 max | 0.50 max |
| KWM-430LNb | MIG wire | - | - | 17Cr-Nb automotive exhaust systems | |||
| KWM-430 | MIG wire | ER430 | Y430 | 17Cr automotive exhaust systems | 15.50–17.00 | 0.60 max | 0.75 max |

Stainless Steel TIG Welding Rods (KWT)
- 21 grades, AWS ER308–ER2209 and 400-series
21 models
| Model | Series | AWS class | JIS / KS | Application | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|
| KWT-2209 | TIG rod | ER2209 | - | Duplex stainless steel | 21.50–23.50 | 8.50–10.50 | 2.50–3.50 |
| KWT-308 | TIG rod | ER308 | Y308 | 18Cr-8Ni stainless | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWT-308L | TIG rod | ER308L | Y308L | Low-carbon 18Cr-8Ni stainless | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWT-308H | TIG rod | ER308H | - | Medium-carbon 18Cr-8Ni stainless | 19.50–22.00 | 9.00–11.00 | 0.5 max |
| KWT-308LSi | TIG rod | ER308LSi | Y308LSi | Low-carbon 18Cr-8Ni stainless (Si-enhanced) | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWT-316 | TIG rod | ER316 | Y316 | 18Cr-12Ni-Mo stainless | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWT-316L | TIG rod | ER316L | Y316L | Low-carbon 18Cr-12Ni-Mo stainless | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWT-316LSi | TIG rod | ER316LSi | Y316LSi | 18Cr-12Ni-Mo stainless (Si-enhanced) | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWT-309 | TIG rod | ER309 | Y309 | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWT-309L | TIG rod | ER309L | Y309L | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWT-309LSi | TIG rod | ER309LSi | Y309LSi | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWT-309LMo | TIG rod | ER309LMo | - | Dissimilar stainless joints (Mo) | 23.00–25.00 | 12.00–14.00 | 2.00–3.00 |
| KWT-310 | TIG rod | ER310 | Y310 | 25Cr-20Ni stainless | 25.00–28.00 | 20.00–22.50 | 0.75 max |
| KWT-312 | TIG rod | ER312 | Y312 | Dissimilar metals and buttering | 28.00–32.00 | 8.00–10.50 | 0.75 max |
| KWT-347 | TIG rod | ER347 | Y347 | 18Cr-8Ni-Nb stainless | 19.00–21.50 | 9.0–11.0 | 0.75 max |
| KWT-409Ti | TIG rod | ER409Ti | Y409Ti | Automotive exhaust systems | 10.50–11.70 | 0.75–1.00 | 0.10 max |
| KWT-409LTi | TIG rod | ER409LTi | Y409LTi | Automotive exhaust systems | 12.30–12.80 | 0.30 max | 0.50 max |
| KWT-410 | TIG rod | ER410 | Y410 | 13Cr martensitic stainless; corrosion/wear overlay | 11.50–13.50 | 0.60 max | 0.75 max |
| KWT-420J2 | TIG rod | - | - | 13Cr stainless and carbon steel wear/corrosion overlay | 12.50–14.00 | 0.60 max | 0.50 max |
| KWT-430LNb | TIG rod | - | - | 17Cr-Nb automotive exhaust systems | |||
| KWT-430 | TIG rod | ER430 | Y430 | 17Cr automotive exhaust systems | 15.50–17.00 | 0.60 max | 0.75 max |

Stainless Submerged-Arc Welding Wire (KWS)
- 12 grades; paired with PF-S1 flux
12 models
| Model | Series | AWS class | JIS / KS | Application | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|
| KWS-308 | SAW wire | ER308 | Y308 | 18Cr-8Ni stainless | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWS-308L | SAW wire | ER308L | Y308L | Low-carbon 18Cr-8Ni stainless | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWS-308LSi | SAW wire | ER308LSi | Y308LSi | Low-carbon 18Cr-8Ni stainless (Si-enhanced) | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWS-316 | SAW wire | ER316 | Y316 | 18Cr-12Ni-Mo stainless | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWS-316L | SAW wire | ER316L | Y316L | Low-carbon 18Cr-12Ni-Mo stainless | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWS-316LSi | SAW wire | ER316LSi | Y316LSi | 18Cr-12Ni-Mo stainless (Si-enhanced) | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWS-309 | SAW wire | ER309 | Y309 | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWS-309L | SAW wire | ER309L | Y309L | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWS-309LSi | SAW wire | ER309LSi | Y309LSi | Dissimilar stainless joints | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWS-310 | SAW wire | ER310 | Y310 | 25Cr-20Ni stainless | 25.00–28.00 | 20.00–22.50 | 0.75 max |
| KWS-312 | SAW wire | ER312 | Y312 | Dissimilar metals and buttering | 28.00–32.00 | 8.00–10.50 | 0.75 max |
| KWS-347 | SAW wire | ER347 | Y347 | 18Cr-8Ni-Nb stainless | 19.00–21.50 | 9.0–11.0 | 0.75 max |
Stainless Core Wire for Coated Electrodes (KWC)
- 21 grades for electrode manufacture
21 models
| Model | Series | AWS class | JIS / KS | Application | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|
| KWC-2209 | Core wire | ER2209 | - | Core wire for coated electrodes | 21.50–23.50 | 8.50–10.50 | 2.50–3.50 |
| KWC-308 | Core wire | ER308 | Y308 | Core wire for coated electrodes | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWC-308L | Core wire | ER308L | Y308L | Core wire for coated electrodes | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWC-308H | Core wire | ER308H | - | Core wire for coated electrodes | 19.50–22.00 | 9.00–11.00 | 0.5 max |
| KWC-308LSi | Core wire | ER308LSi | Y308LSi | Core wire for coated electrodes | 19.50–22.00 | 9.00–11.00 | 0.75 max |
| KWC-316 | Core wire | ER316 | Y316 | Core wire for coated electrodes | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWC-316L | Core wire | ER316L | Y316L | Core wire for coated electrodes | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWC-316LSi | Core wire | ER316LSi | Y316LSi | Core wire for coated electrodes | 18.00–20.00 | 11.00–14.00 | 2.00–3.00 |
| KWC-309 | Core wire | ER309 | Y309 | Core wire for coated electrodes | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWC-309L | Core wire | ER309L | Y309L | Core wire for coated electrodes | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWC-309LSi | Core wire | ER309LSi | Y309LSi | Core wire for coated electrodes | 23.00–25.00 | 12.00–14.00 | 0.75 max |
| KWC-309LCo | Core wire | ER309LMo | - | Core wire for coated electrodes | 23.00–25.00 | 12.00–14.00 | 2.00–3.00 |
| KWC-310 | Core wire | ER310 | Y310 | Core wire for coated electrodes | 25.00–28.00 | 20.00–22.50 | 0.75 max |
| KWC-312 | Core wire | ER312 | Y312 | Core wire for coated electrodes | 28.00–32.00 | 8.00–10.50 | 0.75 max |
| KWC-347 | Core wire | ER347 | Y347 | Core wire for coated electrodes | 19.00–21.50 | 9.0–11.0 | 0.75 max |
| KWC-409Ti | Core wire | ER409Ti | Y409Ti | Core wire for coated electrodes | 10.50–11.70 | 0.75–1.00 | 0.10 max |
| KWC-409LTi | Core wire | ER409LTi | Y409LTi | Core wire for coated electrodes | 12.30–12.80 | 0.30 max | 0.50 max |
| KWC-410 | Core wire | ER410 | Y410 | Core wire for coated electrodes | 11.50–13.50 | 0.60 max | 0.75 max |
| KWC-420J2 | Core wire | - | - | Core wire for coated electrodes | 12.50–14.00 | 0.60 max | 0.50 max |
| KWC-430LNb | Core wire | - | - | Core wire for coated electrodes | |||
| KWC-430 | Core wire | ER430 | Y430 | Core wire for coated electrodes | 15.50–17.00 | 0.60 max | 0.75 max |
Nickel-Alloy and Duplex Special Welding Materials
- ER NiFeCr-2, ER NiCrMo-3, ER2209
| Model | Series | AWS class | JIS / KS | Application | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|
| KWM-718 | Special alloy MIG wire | ER NiFeCr-2 | Inconel 718 | Inconel and high-nickel dissimilar joints | 17.00–21.00 | 50.0–55.0 | 2.80–3.30 |
| KWT-718 | Special alloy TIG rod | ER NiFeCr-2 | Inconel 718 | Inconel and high-nickel dissimilar joints | 17.00–21.00 | 50.0–55.0 | 2.80–3.30 |
| KWM-625 | Special alloy MIG wire | ER NiCrMo-3 | Inconel 625 | Hardfacing for high-temperature heat and abrasion resistance | 20.00–23.00 | 58 min | 8.00–10.00 |
| KWT-625 | Special alloy TIG rod | ER NiCrMo-3 | Inconel 625 | Hardfacing for high-temperature heat and abrasion resistance | 20.00–23.00 | 58 min | 8.00–10.00 |
| KWM-2209 | Special duplex MIG wire | ER2209 | Y2209 | Duplex stainless steel | 21.50–23.50 | 8.50–10.50 | 2.50–3.50 |

Stainless and Special Alloy Wire
- Ø0.10–12.0 mm; spring, heading, nail, shaft and alloy wire
19 models
| Model | Series | Grades | Wire diameter (mm) | Tensile strength (N/mm²) | Coil ID / unit weight |
|---|---|---|---|---|---|
| Spring wire WPA | Spring wire | AISI 302, 304H, 316 | 0.15–3.50 | 1,230–1,900 | Bright & matt surface |
| Spring wire WPB | Spring wire | AISI 302, 304H | 0.15–3.50 | 1,450–2,400 | Bright & matt surface |
| Spring wire WPB (Inconel 718) | Spring wire | Inconel 718 | 0.15–0.20 | 1,550–1,850 | |
| Cold heading wire WSA | Cold heading wire | AISI 304, 316, 304J3, 304CU, 302HQ (XM-7) | 0.80–5.25 | 460–650 | 30–150 kg coils |
| Cold heading wire WSB | Cold heading wire | AISI 304, 316, 304J3, 304CU, 302HQ, 430/434A | 0.80–12.0 | 450–700 | 30–1,000 kg coils |
| Nail wire | Nail wire | AISI 304, 316 (1/8H, 1/4H) | 1.20–7.00 | 680–1,150 | 18"–32" ID; 50–1,000 kg |
| Free-cutting wire | Free-cutting wire | AISI 303C, 303F (W1, 1/4H) | 0.80–12.0 | 500–1,100 | 12"–32" ID; 30–500 kg |
| Fine soft wire | Fine soft wire (braiding, mesh, knitting) | AISI 304, 316, 316Ti, 321, 304L, 316L, 309S | 0.10–0.70 | 830 max | DIN 80–355 spools |
| Electropolishing wire | Electropolishing wire | 204CU / 200CU (W1, 1/4H, 3/4H) | 1.00–5.5+ | 550–1,750 | |
| Self-drilling screw wire | Self-drilling screw wire | AISI 410, 550 | Under 2.00 / over 2.01 | 460–740 | 12"–32" ID; 25–500 kg |
| Non-magnetic shaft wire | High-hardness non-magnetic shaft wire | AISI 416, 420J2, 420F, 202M | 0.8–12.0 | 800–2,000 | Hv 500+ surface; 30–1,000 kg |
| KW801 | High-hardness special shaft wire | KW801 (high-carbon martensitic) | 0.70–5.01+ | Hv 800 (HRC 64) after heat treatment | |
| KW50S | Ballpoint pen tip wire (lead-free) | KW50S | 0.80–3.51+ | 12"–24" ID; 15–100 kg | |
| SUH660 (A286) | Heat-resistant bolt wire | SUH660 / A286 | Up to 12.0 | 24"–32" ID; 100–1,000 kg | |
| Inconel 625 wire | Special alloy wire | UNS N06625 | Chemical and nuclear equipment | ||
| Inconel 718 wire | Special alloy wire | UNS N07718 | Gas turbines, aerospace, heat-resistant springs | ||
| Monel (Alloy 400) wire | Special alloy wire | UNS N04400 | Seawater and chemical equipment | ||
| Ni52 (Fe-52Ni) wire | Special alloy wire | UNS K95050 | Glass-metal sealing; lithium battery terminals | ||
| Kovar (Fe-29Ni-18Co) wire | Special alloy wire | Fe-29Ni-18Co | Ceramic-metal brazing, semiconductors |