GB/T E318-16
AWS A5.4 E318-16
Description: A212 is a low-carbon Cr18Ni12MoNb stainless steel electrode with a niobium-containing stabilizer with a titanium-calcium coating. It can be used for both AC and DC with excellent operating performance. The deposited metal has better intergranular corrosion performance than A202 and A207. Application: Used for welding important 06Cr17Ni12Mo2, ultra-low carbon Cr17Ni14Mo2 and other stainless steel structures, such as urea synthesis tower, vinylon equipment and other parts exposed to strong corrosive media. Chemical composition of weld metal(%):| C | Mn | Si | Cr | Ni | Nb | Mo | Cu | S | P |
| ≤0.08 | 0.5 ~ 2.5 | ≤0.90 | 17.0 ~ 20.0 | 11.0 ~ 14.0 | 6 X C ~ 1.00 | 2.0 ~ 3.0 | ≤0.75 | ≤0.030 | ≤0.040 |
| Test item | Tensile strength Mpa | Elongation % |
| Guaranteed | ≥550 | ≥25 |
| Rod diameter （mm） | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
| Welding Current （A） | 25 ~ 50 | 50 ~ 80 | 80 ~ 110 | 110 ~ 160 | 160 ~ 200 |