Mô tả
OK Autrod 312
A continuous, solid, corrosion-resistant, chromium-nickel wire for welding stainless steels of the 29% Cr, 9% Ni types. OK Autrod 312 has good oxidation resistance at high temperatures due to its high content of Cr. The alloy is widely used for joining dissimilar steels, especially if one of the components is fully austenitic, and steels that are difficult to weld,
Alloy Type: |
Ferritic-austenitic (29 % Cr – 9 % Ni) |
|
|
Typical Tensile Properties |
Condition |
Yield Strength |
Tensile Strength |
Elongation |
As welded |
610 MPa |
770 MPa |
20 % |
|
|
i.e. machine components, tools and austenitic-manganese steels.
Classifications Wire Electrode: |
EN ISO 14343-A:G 29 9, SFA/AWS A5.9:ER312 |
Typical Charpy V-Notch Properties |
Condition |
Testing Temperature |
Impact Value |
As welded |
20 °C |
50 J |
Typical Wire Composition % |
C |
Mn |
Si |
Ni |
Cr |
Mo |
Cu |
0.10 |
1.6 |
0.4 |
8.8 |
30.7 |
0.20 |
0.14 |
Deposition Data |
Diameter |
Current |
Voltage |
Wire Feed Speed |
Deposition Rate |
0.8 mm |
50-140 A |
16-22 V |
3,4-11 m/min |
0,8-2,7 kg/h |
1.0 mm |
80-190 A |
16-24 V |
2,9-8,4 m/min |
1,1-3,1 kg/h |
1.2 mm |
180-280 A |
20-28 V |
4,9-8,5 m/min |
2,6-4,5 kg/h |