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Gas-Shielded Welding Wire
Gas-Shielded welding wire utilize Co2、argon-rich gas and argon gas as the shielded gases with high production efficiency. Large current may be used during welding to achieve droplet transfer, with large melting coefficient of wire, excellent depth of welding penetration on material, little melting residues, high-density current, concentrated heat, small heating area, little distortion of work pieces after welding, etc. Because of low content of hydrogen in the seam, cold cracking is rate. Good visibility of electric arc facilitates full-position welding and welding at other positions.
Products |
AWS Type |
Specification (mm) |
Package(kg) |
Main applications |
ER49-1 |
0.8-2.0 |
15-20&barrel |
Welding of low-carbon and low-alloy steel structures for boilers, electric lower sector, bridges, petroleum sector, ships, heavy-duty machines, automobiles, etc |
|
ER50-3 |
ER70S-3 |
0.8-1.2 |
15-20&barrel |
Welding of low-carbon sheet; welding of structures and pipes |
ER50-4 |
ER70S-4 |
0.8-1.2 |
15-20&barrel |
Special wires for pure Co2 low-current welding, such as welding of sheet metal |
ER50-6 |
ER70S-6 |
0.8-2.0 |
15-20&barrel |
Welding of various 500MPa structural steel components; welding of various 500MPa plates and pipes; full-position welding with a wide range of current |
ER70S-G |
0.8-1.6 |
15-20&barrel |
Containing Ti, applicable to welding of various 500MPa or 600MPa structural steel components; welding of various 500MPa or 600MPa plates and pipes; featuring stable arc and low splash. |
Products |
Chemical compositions of one sample wire(%) |
Mechanical properties |
||||||||||
C |
Mn |
Si |
P |
S |
Cr |
Ti |
Gas |
Yield strength (MPa) |
Tensile strength (MPa) |
Elongation (%) |
Impact Energy (J) |
|
ER49-1 |
0.08 |
1.87 |
0.80 |
0.014 |
0.013 |
0.07 |
- |
Co2 |
475 |
567 |
28 |
91(-30℃) |
ER70S-3 |
0.09 |
1.23 |
0.49 |
0.012 |
0.010 |
- |
- |
Co2 |
460 |
537 |
28 |
150(-20℃) |
ER70S-4 |
0.09 |
1.18 |
0.70 |
0.013 |
0.010 |
- |
- |
Co2 |
452 |
538 |
27 |
96(-30℃) |
ER70S-6 |
0.07 |
1.47 |
0.86 |
0.012 |
0.010 |
- |
- |
Co2 |
467 |
542 |
26 |
101(-30℃) |
ER70S-G |
0.08 |
1.64 |
0.81 |
0.010 |
0.009 |
- |
Preper amount |
Co2 |
480 |
593 |
29 |
91(-20℃) |
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