AWS A5.9 : ER309L
EN 14343 B : SS309L
JIS Z 3321 : Y309L
▶︎ Characteristics: stainless steel TIG rod
It is designed with high range carbon to help prevent corrosion at high temperature. It suitable for welding of high carbon 18%Cr-8%Ni stainless steel
▶︎ Applications:
It is used for oil and gas refineries, gas turbine, Power plant, Boiler and pressure vessel operate at high temperature
▶︎ Notes on Usage:
1. For TIG process, use DC(-) current , Argon Shield and Tungsten Electrode.
2. For MIG process, use Spray Transfer or Short Circuit Transfer mode.
3. 98%Argon – 2%O₂ shielding gas is recommended in MIG process.
▶︎ Classification:
AWS A5.9 ER308H
▶︎ Typical chemical composition of weld metal (wt%)
| C | Cr | Ni | Mn | Si |
| 0.06 | 20.2 | 10.3 | 1.65 | 0.42 |
▶︎ Typical mechanical properties of weld metal
| TS N/mm2 | EL % |
| 600 | 35 |
▶︎ Sizes and Weight per pack.
| Wire size (mm) | 1.6 | 2.0 | 2.4 | 3.2 |
| Weight per box (kg) | 5 | 5 | 5 | 5 |
