Mild Steels
F 70S-3
AWS: SFA 5.18 ER70S-3
EN ISO CODE:
F 70S-3 is a copper-coated mild steel wire for GTAW, available in bright finish, gives smooth flow, stable arc and spatter free under optimum welding conditions. It gives radiographic quality welds. It is suitable for root run of mild steel pipes. Ideal for welding A36, A285 grade C, A515-55, A516-70, etc
Approvals
TYPICAL CHEMICAL COMPOSITION OF SOLID WIRE:
| Element | C | Mn | Si | P | S | Cu | Ni | Cr | Mo |
|---|---|---|---|---|---|---|---|---|---|
| Percentage | 0.06 | 1.25 | 0.55 | 0.02 | 0.02 | 0.06 | 0.10 | 0.10 | 0.10 |
TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL
|
UTS (MPa) |
YS (MPa) |
Elongation (L=5d) % |
CVN Impact Strength at minus 30°C (Joules) |
|---|---|---|---|
| 530 | 440 | 28.0 | 60 |
SHIELDING GAS:
Argon
CURRENT CONDITIONS:
DCEN
WELDING POSITION:
H, F, VU, OH
PACKING:
STANDARD SIZE: Diameter 1.6 mm, 2.0 mm, 2.4 mm, 2.5 mm, 3.15 mm & 3.2 mm in cut lengths of 500 mm / 1000 mm each.
QUANTITY: 5 kg wire put in an air-tight polythene bag and finally packed in a plastic container.
Identification-AWS code is punched on each wire.
