RAAJMIG-7 (AWS A5.18 ER70S-7)

Copper Coated Continuous or Cut Length Solid Wire for TIG/MIG Welding

Classification:

AWS/SFA-5.18 : ER70S-7

Characteristics:

Copper coated, double oxidized solid wire for all-position CO₂ welding. Provides a smooth and stable arc with minimal spatter. The thin, uniform copper coating ensures excellent conductivity, making it highly suitable for high-speed feeding and consistent weld quality.

Applications:

Welding structural steels up to UTS 500 N/mm²
Carbon steel and low alloy steels
Single-pass and multi-pass welding operations
Jobs requiring higher travel speeds compared to other filler metals

Shielding Gas:

Welding with CO₂ gas and Ar + CO₂ gas mixture.

CHEMICAL COMPOSITION % (Solid Wire Chemistry)
C	Mn	Si	S	P	Cu
0.070-0.15	1.50-2.00	0.50-0.80	0.035 Max	0.025 Max	0.50 Max

ALL WELD MECHANICAL PROPERTIES FOR MIG (Under CO₂ Gas Shield)
YS (N/mm²)	UTS (N/mm²)	Elongation %	Charpy “V” Notch Impact
420-480	510-610	22-32	-20°C : 70-90 J -30°C : 40-60 J

DIMENSION, CURRENT CONDITION & PACKING DATA (RAAJMIG-1)
Size (mm)	Size (inch)	Current Condition (DC+)	Voltage (V)	Gas Flow Rate (L/min)	Spool Packing 12.5 kg	Spool Packing 15 kg	Drum Packing 100/200 kg
0.60	0.023	40-100	16-20	10-15	✔	✔	✘
0.80	0.031	60-180	16-24	10-20	✔	✔	✘
0.90	0.035	60-180	16-28	10-20	✔	✔	✘
1.00	0.039	80-220	18-28	10-25	✔	✔	✘
1.20	0.047	120-300	24-34	15-25	✔	✔	✔
1.60	0.062	150-350	24-36	15-30	✔	✔	✔

DIMENSION, CURRENT CONDITION & PACKING DATA (RAAJTIG-1)
Size (mm)	Size (inch)	Length (mm)	Length (inch)	Current Condition (DC+)	Voltage (V)	Tube Packing 5 kg	Box Packing 20 kg
1.60	1/16”	1000	36”	80-110	10-16	✔	✔
2.0	5/64”	1000	36”	100-150	12-18	✔	✔
2.4 / 2.5	3/32”	1000	36”	130-180	14-20	✔	✔
3.2	1/8”	1000	36”	150-220	16-24	✔	✘
4.0	5/32”	1000	36”	200-280	18-28	✔	✔