About MIG CO2 Cooper Coated Solid Welding Wire ER70S-6 details

ER70S-6 is a solid low carbon steel filler wire rod used for TIG Welding & MIG/MAG (GMAW) Welding applications.Each digit in the ER70S-6 classification has its own meaning and meets AWS A5.18 standards, meaning it’s certified for tensile strength around 70,000 psi minimum. The “ER” stands for electrode or rod, “70” for that base strength, “S” for solid wire, and “6” flags its higher silicon and manganese content compared to milder options. It’s copper-coated for smooth feeding through your Lincoln or Miller machine, reducing bird-nesting headaches.

APPLICATIONS:

ER70S-6 is used widely for welding of mild steel, plain carbon steel, and carbon steel. It is also used for dissimilar welding between carbon steel to Low alloy steel.The wire can be used for thin sheet metal (Small diameters) and thick parts welding as well. The shielding gas when using the wire with Gas Tungsten Arc Welding (TIG) is pure argon.

CHARACTERISTICS:

ER70S-6 is for Rm 500MPa level carbon steel with shield gas of CO2 or M21. Small spatter, beautiful appearance, high deposition efficiency and small weld metal porosity sensibility. All positions are suitable.

ATTENTION:

1. The rust, oil, water and other impurities of the weld area must be
removed before welding.
2. The mechanical properties of all weld metal be decided by heat input, normally the small heat input will better than larger one.

WELDING POSITIONS:

PA, PB, PC, PD, PE, PF

DEPOSIT COMPOSITION (QUALITY SCORE):  %

Items

C

Mn

Si

S

P

Ni

Cr

Mo

V

Cu

Requirements

0.06-0.15

1.40-1.85

0.80-1.15

≤0.025

≤0.025

≤0.15

≤0.15

≤0.15

≤0.03

≤0.50

Typical Results

0.077

1.45

0.87

0.013

0.012

0.017

0.031

0.005

0.004

0.125

MECHANICAL PROPERTIES:

Items

Tensile Strength

Rm/MPa

Yield Strength

 Rel/Rp0.2   MPa

Elongation A/%

Charpy V-Notch

KV2(J)-30℃

Requirements

≥500

≥420

≥22

≥47

Typical Results

550

450

29

85

TYPICAL OPERATING PROCEDURES (DC+)

Diameter (mm)

0.8

1.0

1.2

1.6

Current (A)

50-100

50-220

80-350

170-550

CO2 gas flow(L/min.)

15

15-20

15-25

20-25

PACKAGING:

5kgs or 15kgs ,20kgs per spool;1spool/carton, 72cartons/pallet.250kgs/drum etc

Why choose Hebei Five-Star Metal ?

Our advantages

We are one professional manufacturer and exporter of steel wire products since 1998!

All wire be delivered directly from our factory ,So we can supply more competitive price and with short production time.

We have more then 20  years export experience and have established long-term and stable cooperative relationships with multiple shipping companies, which enables us to arrange the export of goods as soon as possible and smoothly. Ensure that customers can receive goods smoothly before the peak sales season.

All goods are packaged for export by sea or air to avoid damage during transportation.In order to meet the needs of various markets, there are various packaging options for iron nails, such as 5 kilograms ; 15 kilogram , 20 kilograms ;250kgs drum and so on. We can also customize packaging according to customer requirements


Post time: Nov-05-2025