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
APPROVAL :
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 :
1) Ideally suited for welding carpenter 20, HV 9, HV 9A, Uranus B-6, UHB 904L,sandvik 2Rk65 and other similar materials.
2) 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 |
+200°C : 60-100 J |
DIMENSION, CURRENT CONDITION & PACKING DATA
| Size(mm) (Dia) |
Size(inch) (Dia) |
Current Condition (DC+/AC) Amps |
No. of Pcs./pkt. |
No. of Pcs./Case |
| 2.50/ 2.40 X 350 |
3/ 32” X 14” |
60-80 |
81 |
648 |
| 3.15/ 3.20 X 350 |
1/ 8” X 14” |
80-100 |
56 |
448 |
| 4.00 X 350 |
5/ 32” X 14” |
110-140 |
36 |
228 |
| 5.00 X 350 |
3/ 16” X 14” |
150-180 |
25 |
200 |
Customer packing on request.
