SJ-58
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ER70S-G
Low Alloy High Strength Steel SJ-58
Specification：AWS A5.18 ER70S-G
JIS Z3312 YGW11
GB/T8110-2008 ER50-G
GB/T8110-2020 G49A0C1S11
Introduction：
Addition of Ti helps stabilize the arc and significantly reduces spatter and fume generation.
Ti also refines the grain structure of the weld bead, greatly enhancing its strength and impact toughness,excellent performance in high-current applications.
Smooth feeding, stable arc, and beautiful weld bead appearance, low spatter,has excellent welding performance.
The deposited metal has good mechanical properties.
Application：
Bridges
Ships
Machinery
Offshore platforms
Pass the certification：
JIS NK
Chemical Composition of Wire %
| C | Mn | Si | P | S | Cu | Ti+Zr | |
| AWS | 0.02-0.15 | 1.40-1.90 | 0.55-1.10 | ≤0.030 | ≤0.030 | ≤0.50 | 0.02-0.30 |
| TR(HC) | 0.07 | 1.55 | 0.83 | 0.012 | 0.011 | 0.14 | 0.23 |
Mechanical Properties of Deposited Metal
| Tensile Strength | Yield Strength | Elongation | Impact Value | |||||
| Mpa | Mpa | % | 0℃ J | |||||
| TR(HC) | 558 | 466 | 27 | 113 | ||||
Packing and Recommended Parameters:(DC+)
| Diameter | Spool | Drum | ||||||
| mm/in | Current range(A) | 0.9kg(2 lbs) | 5kg (11 lbs) | 15kg(33 lbs) | 20kg(44 lbs) | 250kg(551 lbs) | 350kg(771lbs) | 400kg(881 lbs) |
| 0.8(0.030) | 50-100 | √ | √ | √ | √ | |||
| 0.9(0.035) | 50-200 | √ | √ | √ | √ | |||
| 1.0(0.040) | 80-250 | √ | √ | √ | √ | √ | ||
| 1.2(0.045) | 100-350 | √ | √ | √ | √ | √ | ||
| 1.4(0.052) | 200-400 | √ | √ | √ | √ | √ | √ | |
| 1.6(1/16) | 250-500 | √ | √ | √ | √ | √ | ||
| 2.0(5/64) | 270-500 | √ | √ | √ | √ | |||
Welding position：
Shielding Gas：
75% ~80%Ar+CO₂
OR：
CO₂
Points for Attention：
1. Gas Flow Rate: 20~25 L/min.
2. Contact Tip-to-Work Distance (CTWD): 15~25 mm.
3. Remove the rust, moisture, oil, dust, and others from the welding area.
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