High-Temperature vs Standard Stainless Welding Rod
E310-16 for furnace and kiln work vs E308L-16 for general stainless. Use 310 when service temperature exceeds 800F.
Key Differences
| Attribute | E310-16 | E308L-16 |
|---|---|---|
| Max Service Temperature | ~2000F (1100C) | ~800F (425C) continuous |
| Chemistry | 25Cr-20Ni (high alloy) | 18Cr-8Ni (standard) |
| Cost | Significantly higher | Standard stainless pricing |
| Application | Furnaces, kilns, radiant tubes | General stainless fabrication |
| Oxidation Resistance | Excellent at extreme temperature | Good at normal temperature |
| Hot Cracking Risk | Higher in thick sections | Lower |
| Availability | Specialty - limited stock | Common - widely available |
Use E310-16 when:
Use E308L-16 when:
How E310-16 and E308L-16 Work Together
E308L-16 is the workhorse for standard stainless fabrication at normal temperatures. E310-16 is a specialty electrode that only makes sense when the weld will operate at sustained high temperatures. The 25Cr-20Ni chemistry of E310-16 resists oxidation and retains strength at temperatures that would destroy an E308L weld. If the application is a kitchen sink, use E308L-16. If it is a furnace tube, use E310-16.
Common Mistake With High-Temperature
Using E308L-16 to repair furnace components because it is standard stainless. The lower alloy content will oxidize and fail at furnace temperatures. E310-16 costs more but is the only correct choice for high-temperature service.
Where to Buy
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