Changshu Longteng Special Steel Co., Ltd.
LONGTENG WELDING CONSUMABLES WELDING THE GLOBAL
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LT*ER70S-7 0.8/1.0/1.2/1.6mm Cooper Coating Welding Wire
ER70S-7 is a general purpose MIG wire suitable for many carbon steel welding applications but with substantially greater manganese content than ER70S-3 welding alloy, the higher manganese provides slightly better wetting and weld appearance with slightly higher tensile and yield strengths as well.
Typical Applications
• High tensile strength steels for automobiles
• Rolling stock
• Electrical appliances
• Machinery
• Air conditioners
• Light gauge steels
• Pipes
• Steel frames
Typical Wire Chemistry as per AWS A5.18 (single values are maximum)
| C | Mn | Si | P | S | Ni | Cr | Mo | V | Cu | |||
| 0.07-0.15 | 1.50-2.00 | 0.50-0.80 | 0.025 | 0.035 | 0.15 | 0.15 | 0.15 | 0.03 | 0.5 | |||
| Typical Welding Parameters | |||||||||||||
| Diameter | Process | Volt | Amps | Shielding Gas | |||||||||
| in | (mm) | ||||||||||||
| .035 | (0.9) | GMAW | 28-32 | 165-200 | Spray Transfer 98% Argon+2% Oxygen or 75% Argon+25% CO2 | ||||||||
| .045 | (1.2) | GMAW | 30-34 | 180-220 | Spray Transfer 98% Argon+2% Oxygen or 75% Argon+25% CO2 | ||||||||
| 1/16 | (1.6) | GMAW | 30-34 | 230-260 | Spray Transfer 98% Argon+2% Oxygen or 75% Argon+25% CO2 | ||||||||
| .035 | (0.9) | GMAW | 22-25 | 100-140 | Short Circuiting Transfer 100% CO2 or 75% Argon +25% CO2 | ||||||||
| .045 | (1.2) | GMAW | 23-26 | 120-150 | Short Circuiting Transfer 100% CO2 or 75% Argon +25% CO2 | ||||||||
| 1/16 | (1.6) | GMAW | 23-26 | 160-200 | Short Circuiting Transfer 100% CO2 or 75% Argon +25% CO2 | ||||||||
| 1/16 | (1.6) | GTAW | 12-15 | 100-125 | 100% Argon | ||||||||
| 3/32 | (2.4) | GTAW | 15-20 | 125-175 | 100% Argon | ||||||||
| 1/8 | (3.2) | GTAW | 15-20 | 175-250 | 100% Argon | ||||||||
AWS Specification
AWS A5.18/A5.18M:2005
AWS Classification ER70S-7
Welding Current for MIG process
DCEP (Electrode Positive, Reverse Polarity)
Welding Current for TIG process
DCEN