AWS A5.9 : ER309L
EN 14343 B : SS309L
JIS Z 3321 : Y309L
▶︎ Characteristics: stainless steel TIG rod
It is austenitic stainless steel filler metal for welding of 29%Cr-9%Ni types. It is widely used for joining of dissimilar metals to join 300 series stainless steels to carbon or low alloy steels.
▶︎ Applications:
Typical applications include marine, re-conditioning and refurbishment industries.
▶︎ 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 ER312
JIS Z3321 Y312
▶︎ Typical chemical composition of weld metal (wt%)
| C | Cr | Ni | Mn | Si |
| 0.03 | 29.5 | 9.5 | 1.2 | 0.5 |
▶︎ Typical mechanical properties of weld metal
| TS N/mm2 | EL % |
| 710 | 26 |
▶︎ Sizes and Weight per pack.
| Wire size (mm) | 1.6 | 2.0 | 2.4 | 3.2 |
| Weight per box (kg) | 5 | 5 | 5 | 5 |
