Features and Applications
Austenitic stainless steel wire originally designed to weld cast alloys of similar composition.
It gives a two-phase weld deposit with substantial percentages of ferrite in austenite matrix.
Ideal for welding dissimilar metals such as carbon steel to stainless steel, particularly those grades high in nickel.
Due to its high ferrite level, ER 312 is very adapted to heterogeneous welding, especially when one of the components is fully austenitic.
Good corrosion oxidation resistance at high temperature due to its high content of Cr.
Service temperatures should be below 420°C to prevent formation of secondary brittle phases.
Typically used on industrial furnaces, annealing chambers, fused salt treatment installations and boiler parts, as well as heat exchangers etc.
Test Certificates can be found online @wilkinsonstar247.com
Typical Base Materials
Mild and low alloy steels, stainless steel of similar composition, Buffer layers, armor plate, 409, 304, difficult to weld steels such as:, 25CrMo4, 42CrMo4, 50CrMo4, 42MnV7, 1.7218, 1.7225, 1.7228, 1.7223, AISI: 4130, 4140, 4150, C45, C60, tool steel repairs etc*
* Illustrative, not exhaustive list
| Standards |
EN ISO 14343-A - W 29 9
|
AWS A5.9 - ER 312
|
| Chemical Composition % (Typical) |
| C% |
Mn% |
Si% |
S% |
P% |
|
|
| 0.091 |
1.59 |
0.46 |
0.004 |
0.021 |
|
|
| |
|
|
|
|
|
|
| Ni% |
Cr% |
Mo% |
Cu% |
|
|
|
| 20.68 |
26.65 |
0.040 |
0.21 |
|
|
|
Mechanical Properties
|
| Tensile Strength |
≥650 MPa |
|
| Yield Strength |
≥450 MPa
|
|
| Elongation |
≥15 %
|
|
Mechanical properties are approximate and may vary based on the heat, shielding gas, welding parameters and other factors.
Shielding Gases
EN ISO 14175 - TIG: I1 (Argon)
Welding Positions
EN ISO 6947 - PA, PB, PC, PD, PE, PF, PG
| Packaging Data |
Diameter
|
Length
|
Weight |
|
|
1.60 mm
2.40 mm
3.20 mm
|
1000 mm
1000 mm
1000 mm
|
5 Kg
5 Kg
5 Kg
|
|
Liability: Whilst all reasonable efforts have been made to ensure the accuracy of the information contained, this information is subject to change without notice and can be only considered as suitable for general guidance.
