Special type Electrode fully Austenitic, extra-low carbon weld metal Mo & Cu.
CLASSIFICATION
: AWS/SFA-5.4: E 385-16
DIN E 20 25 5 Cu R 26
DIN E 20 25 5 Cu R 26
CHARACTERISTICS :
Ratna 20/25/5 Cu is special type electrode producing an extra low carbon weld metal containing 20Cr-25Ni-5Mo-2Cu. The weld metal exhibits excellent corrosion resistance to sulphuric acid, phosphoric acid, acetic acid, formic acid, fatty acids, oxalic acid etc.
APPLICATION :
- Ideally suited for welding carpenter 20, HV 9, HV 9A, Uranus B-6, UHB 904L,sandvik 2Rk65 and other similar materials.
- Electrode may be used to joint type 317L material where improved corrosion resistance is needed.
RE-DRY CONDITION :
Re-Dry the electrode at 250°C for 1 hrs. before use.
ALL WELD CHEMICAL COMPOSITION %
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu |
| 0.03 max. | 1.00-2.50 | 0.90 Max | 0.020 Max | 0.020 Max | 19.50-21.50 | 24.00-26.00 | 4.20-5.20 | 1.20-2.00 |
ALL WELD MECHANICAL PROPERTIES :
| UTS (N/mm²) | EL % (l=4d) | CHARPY “V” NOTCH IMPACT AT |
| 520-690 | 30-45 | +20°C : 60-100 J |
DIMENSION, CURRENT CONDITION & PACKING DATA
| Size(mm) (Dia) | Size(inch) (Dia) | Current Condition (DC+/AC) Amps | kg./pkt.. | kg./Case |
| 2.50/ 2.40 X 350 | 3/ 32” X 14” | 60-80 | 2 | 20 |
| 3.15/ 3.20 X 350 | 1/ 8” X 14” | 80-100 | 2 | 20 |
| 4.00 X 350 | 5/ 32” X 14” | 110-140 | 2 | 20 |
| 5.00 X 350 | 3/ 16” X 14” | 150-180 | 2 | 20 |