1. EQUIVALENT STANDARD AND CONFORMITY
- America Standard: AWS A5.20 E71T-1C
2. DESCRIPTION
- KF-71T is a titania type flux cored wire for all position welding with CO2
- KF-71T is suitable for welding high tensile steel with slow freezing slag system.
3. PACKING SPECIFICATION
| Net weight of spool (Kg) |
| 15 |
4. WELD MECHANISM
| Tensile Strength |
Yield Strength
(minimum) |
Elongation
(minimum) |
Impact Value
(minimum average) |
70-95 ksi
(483 - 655 MPa) |
58 ksi
(400 MPa) |
22% |
20 ft J at ·lbf at 0°F
(27J at - 18°C)
|
5. CHEMCIAL COMPOSITON OF WELDING METAL LAYER (%)
| Nguyên tố |
C |
Mn |
Si |
P |
S |
Ni |
Cr |
Mo |
V |
Cu |
| Trị số % |
0.12 max
|
1.75 max |
0.90 max |
0.03 max |
0.03 max |
0.50 max |
0.20 max |
0.30 max |
0.08 max |
0.35 max |
6. SIZE AND RECOMMENDED CURRENT (AC OR DC)
| Diameter (mm) |
Ø1.2 |
Ø1.6 |
Ø2.0 |
Ø2.4 |
Ø4.0 |
| Welding Current (Ampe) |
110 – 200 |
180 – 320 |
300 – 350
|
350 – 400 |
480 – 520 |
| Welding potential (V) |
23 – 25 |
25 – 28 |
26 – 28 |
27 – 29 |
28 – 30 |
| Gas volume in liters/minute |
12 – 13 |
16 – 18 |
18 – 20 |
20 – 22 |
28 – 30 |