KMS-686
Shielding Gas：75%Ar+25%He
KMS-686 is 57%Ni-21%Cr-16%Mo-4%W alloy.
KUANG TAI METAL INDUSTRIAL CO., LTD.
廣泰金屬工業股份有限公司
No.20, Gongye Rd., Erzhen, Guantian Dist.
Tainan City 72042, Taiwan
TEL：886-6-6987615 FAX：886-6-6987315
▎Classification
| AWS A5.14/A5.14M | ERNiCrMo-14 |
| JIS Z3334 | SNi6686 |
| EN ISO 18274 | S Ni 6686 |
| GB T15620 | S Ni 6686 |
▎Applications and Features
- KMS-686 is 57%Ni-21%Cr-16%Mo-4%W alloy.
- It provides excellent oxidizing acid, reducing acid, pitting, and crevice corrosion resistance.
- Suitable for welding Hastelloy C-22, Hastelloy C-276, Inconel Alloy 625 and Inconel Alloy 686.
▎Welding Position
▎Welding Instruction
- Clean surface of base metal before welding.
- Heat input should be controlled as low as possible.
- For other instructions, please refer to Appendix B.
▎Application
Suitable for welding Hastelloy C-22, Hastelloy C-276, Inconel Alloy 625 and Inconel Alloy 686.
▎Typical Chemical Composition of Wire (wt%)
| C | Si | Mn | P | S | Cr | Mo | Fe | Al | W | Ni |
| 0.01 | 0.07 | 0.30 | 0.001 | 0.001 | 21.20 | 15.90 | 0.40 | 0.20 | 3.40 | 58.10 |
▎Typical Mechanical Properties of Weld Metal
| Tensile Strength N/mm² | Yield Strength N/mm² | Elongation % | Charpy V-Notch ℃ | Charpy V-Notch J |
| 760 | 545 | 35 | – | – |
▎Size and Suggested Operating Range (DC+)
| Diameter (mm) | 0.8 | 0.9 | 1.2 | 1.6 |
| Current (A) | 140-180 | 160-200 | 190-230 | 200-250 |
| Voltage (V) | 24-27 | 25-28 | 26-30 | 29-33 |
▎Certification
JISZ3323_TCTW08007