Oerlikon SUPRANOX RS 312 d.2.5x300 1.7 kg
SUPRANOX RS 312 is a rutile coated MMA electrode for joining difficult-to-weld steels, dissimilar steels and for wear-resistant surfacing and buffer layers, the deposit hardness is ~220 HB. Applications include repair and maintenance welding on machines, power transmission equipment and tools. The microstructure of the higher strength weld metal consists of ferritic-austenitic Cr-Ni steel, with ~50% delta-ferrite, and is highly crack resistant, rust-proof and non-scaling <1100 °C. Very good weldability, weld metal transfer is in fine droplets with easy slag removal, producing a good weld bead shape.
| Classification | |
|---|---|
| EN 1600: | ~E 29 9 R 12 |
| AWS A5.4: | ~E 312-16 |
Chemical analysis (Typical values in %)
| C | Mn | Si | Cr | Ni | Ferrite |
|---|---|---|---|---|---|
| 0.8. | 1 | 1.2 | 28 | 12 | 25-50 |
All-weld metal Mechanical Properties
| Heat Treatment | Yield Strength N/mm2 | Tensile strength N/mm2 | Elongation A5 (%) | Impact Energy ISO - V (J) | Hardness | |
|---|---|---|---|---|---|---|
| As Welded | > 450 | >650 | > 20 | > 30 (+20 °C) | 220 HB | |
Materials
Welding of steels which are difficult to weld: alloy steels, armor-plating steels. This electrode can also be used to weld dissimilar materials: non-alloyed steels or low alloy steels with stainless steel. Electrode particularly suitable for use in repair work.
Storage and redrying
Keep dry and avoid condensation.
Re-drying not generally required.
If necessary: 300-350 °C for 2 hours, 5 times max.
Current condition
AC; DC+
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