SJ-55-Ni1
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ER80S-Ni1
Low Alloy low temperature Steel SJ-55-Ni1
Specification：AWS A5.28 ER80S-Ni1
ISO 14341-B-G SN2
GB/T 8110 ER55-Ni1
Introduction：
Contain Ni and for 550MPa grade low temperature resistant steel welding.
Good impact toughness at low temperature, the deposited metal has good mechanical properties.
Smooth feeding, stable arc, and beautiful weld bead appearance, low spatter.
Application：
low temperature Storage tank
low temperature Pipeline
low temperature vessels
low temperature machinery
Pass the certification：
CE
Chemical Composition of Wire %
| C | Mn | Si | P | S | Cr | Mo | Ni | V | |
| AWS | ≤0.12 | ≤1.25 | 0.40-0.80 | ≤0.020 | ≤0.010 | ≤0.15 | ≤0.35 | 0.80-1.10 | ≤0.050 |
| TR(HC) | 0.07 | 1.10 | 0.52 | 0.011 | 0.007 | 0.02 | 0.03 | 0.93 | 0.008 |
Mechanical Properties of Deposited Metal
| Tensile Strength | Yield Strength | Elongation | Impact Value | PWHT | |||||
| Mpa | Mpa | % | -45℃ J | ℃xh | |||||
| TR(HC) | 608 | 515 | 27 | 87 | AW | ||||
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) |
| 1.0(0.040) | 80-250 | √ | √ | √ | √ | √ | ||
| 1.2(0.045) | 100-350 | √ | √ | √ | √ | √ | ||
| 1.4(0.052) | 200-400 | √ | √ | √ | √ | √ | √ | |
| 1.6(1/16) | 250-500 | √ | √ | √ | √ | √ | √ | |
Welding position：
Shielding Gas：
98% Ar+2% O₂
Points for Attention：
1. PWHT requirement: AW
2. Preheating and interpass temperature: 135-165 ℃;
3. Gas Flow Rate: 20~25 L/min.
4. Remove the rust, moisture, oil, dust, and others from the welding area.
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