Peculiarities of welding process using metal cored wire of TMV5-mk grade
LLC TM.Veltek has developed and mastered the production of high-efficient metal cored wire TMV5-MK for welding in a mixture of 82% Ar + 18% CO2
|
TMW5mc
|
|
TUU 28.7-31749248.002-2002 AWS A5.20: E70Tl 5-M21 A4-G-H4
|
| Welding process: G – in shielding gas |
Wire diameter, mm | Recommended shielding gases and fluxes |
| G | 1,0–2,0 | М21 (18% СО2 + 82% Ar) |
Ø 2,0 мм:
| Stability of arc burning | high |
| Sectional shape and appearance of the seam | good |
| Resistance to cracking and pore formation | high |
| Metal spraying | low |
| Deposition rate, kg/h | 1,5–10,0 |
| Wire consumption per 1 kg of deposited metal, kg | 1,05–1,15 |
| C | Si | Mn | S | P |
| ≤0.1 | 0.45 | 1.5 | ≤0.02 | ≤0.02 |
| Brand of the wire | Distance, % | virobnik | C | Mn | Si |
| ROBOFIL M 71 (55) | 0.12 | Welding Alloys | 0.07 | 1.4 | 0.5 |
| ROBOFIL B 71 (56) | 0.12 | Welding Alloys | 0.06 | 1.4 | 0.4 |
| ROBOFIL M 71Zn (57) | 0.18 | Welding Alloys | 0.1 | 1.6 | 0.6 |
| ROBOFIL M 70 (54) | 0.21 | Welding Alloys | 0.05 | 1.5 | 0.65 |
| ROBOFIL KX71T1+ (53) | 0.21 | Welding Alloys | 0.05 | 1.3 | 0.5 |
| Ultimate tensile strength, MPa | Yield Strength, MPa | Elongation (l = 5×d), % | Impact strength, KCV, J/cm2 at T °C | ||
|
minimum |
+20° |
-20° |
-40° |
||
| 520 | 420 | 22 | ≥160 | ≥100 | ≥60 |
| Wire diameter, mm | Welding process: | Current, A | Voltage, V | Surfacing rate, m/h | Wire overhang, mm mm | Gas consumption l/min |
| 1,2 | G | 150-300 | 20-30 | 8 - 13 | 15 - 20 | 7 - 14 |
| 1,6 | G | 180-350 | 22-31 | 10 - 15 | 15 - 25 | 8 - 16 |
| 2,0 | G | 200 - 400 | 24-32 | 12 - 18 | 15 - 25 | 9 - 18 |
| Wire diameter, mm | Cardboard barrel | Molded skeins of frameless type | Frame drum (B) | Coil (S), (BS) | |||
| Hank in the corrugation box | Metallic barrel | ||||||
| To 100 kg | To 150 kg | To 300 kg | To 30 kg | To 70 kg | To 25 kg | To 15 kg | |
| 1.2 | X | X | X | X | X | X | X |
| 1.6 | X | X | X | X | X | X | X |
| 2.0 | X | X | X | X | X | X | X |
LLC TM.Veltek has developed and mastered the production of high-efficient metal cored wire TMV5-MK for welding in a mixture of 82% Ar + 18% CO2