SJT304
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ER304
TIG Wire for Stainless Steel: ST304
Specification：AWS A5.9 ER304
GB/T 29713 S304
ISO 14343-B: SS304
Introduction：
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ST304 is a kind of TIG welding wire for 18Cr-9Ni austenitic stainless steel. Used in the welding of similar base materials, equipment and machine parts.
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Stable arc and low spatter, and the deposited metal has excellent corrosion resistance.
Application：
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Furniture decoration
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Food processing equipment
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Medical equipment
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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） | Tube-1000mm | |
| mm/in | E.H | OH.V | 5kg (11 lbs) |
| 1.6(1/16) | 50-100 | 50-100 | √ |
| 2.0(5/64) | 100-200 | 100-200 | √ |
| 2.4(3/32) | 200-300 | 200-300 | √ |
| 3.2(1/8) | 300-400 | 300-400 | √ |
| 4.0(5/32) | 400-500 | 400-500 | √ |
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Welding position：
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Shielding Gas：
Ar
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Attention：
1. Tungsten electrode extension length: 3~5mm.
2. Arc length: 1-3mm.
3. Argon gas flow rate: 10~18L/min.
4. Remove rust, moisture, oil, dust, and others from the welding area.
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