SJM304
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ER304
MIG Wire for Stainless Steel: SM304
Specification：AWS A5.9 ER304
GB/T 29713 S304
ISO 14343-B: SS304
Introduction：
SM304 is a kind of MIG welding wire for 18Cr-9Ni austenitic stainless steel. Used in the welding of similar base materials, equipment and machine parts.
Stable arc and low spatter, and the deposited metal has excellent corrosion resistance.
Application：
Furniture decoration
Food processing equipment
Medical equipment
Pass the certification：
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Chemical Composition of Wire %
| C | Mn | Si | Cr | S | P | Ni | |
| AWS | ≤0.08 | 1.0-2.5 | ≤0.60 | 17-19 | ≤0.03 | ≤0.03 | 8.0-11.0 |
| TR(HC) | 0.04 | 1.20 | 0.42 | 18.20 | 0.002 | 0.02 | 8.30 |
Mechanical Properties of Deposited Metal：
| Tensile Strength | Yield Strength | Elongation | ||||
| Mpa | Mpa | % | ||||
| TR(HC) | 520 | - | 30 | |||
Packing and Recommended Parameters：(DC+)
| Diameter | Current Range（Amp） | Spool | ||||
| mm/in | E.H | OH.V | 0.9kg(2 lbs) | 5kg (11 lbs) | 15kg(33 lbs) | 20kg(44 lbs) |
| 0.8(0.030) | 70-150 | 50-120 | √ | √ | √ | |
| 0.9(0.035) | 80-180 | 60-150 | √ | √ | √ | |
| 1.0(0.040) | 100-200 | 80-150 | √ | √ | √ | √ |
| 1.2(0.045) | 140-220 | 120-180 | √ | √ | √ | √ |
| 1.6(1/16) | 160-240 | 140-220 | √ | √ | ||
| 2.0(5/64) | 180-300 | 160-240 | √ | √ | ||
Welding position：
Shielding Gas：
98% Ar+2% O₂
Points for Attention：
1. Recommended shielding gas mixture is Ar + 1~3% O₂.
2. Gas Flow Rate: 20~25 L/min.
3. Contact Tip-to-Work Distance (CTWD): 15~25 mm.
4. Removal of rust, moisture, oil, dust, and others from the welding area.
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