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MIG WELIDNG WIRE TH550-NQ-Ⅱ
Keyword:
MIG WELIDNG WIRE TH550-NQ-Ⅱ
Product Description
Introduction：
TH550-NQ-II is a high-strength weather resistant steel copper plated welding wire, protected by rich argon gas. The weld seam has strong toughness and atmospheric corrosion resistance, making it a special welding wire for railway locomotives.
The packaging specifications for TH550-NQ-Ⅱ
Weight: 1KG, 5KG, 10KG, 15KG, 20KG
Diameter: 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 2.0mm
Purpose：
The product is applicable for welding weathering steels with tensile strength of 550MPa, such as 15MnCuCrQT, etc. It is commonly used in the fields such as rolling stock, offshore engineering, containers, bridges and so on.
Chemical composition of welding wire (%)
Item | C | Mn | Si | S | P | Ni | Cr | Cu |
|---|---|---|---|---|---|---|---|---|
| Example value | 0.057 | 1.40 | 0.46 | 0.008 | 0.016 | 0.33 | 0.48 | 0.30 |
Mechanical properties of deposited metal (Ar+20%CO2)
Test item | Rm (MPa) | ReL/Rp2 (MPa) | A (%) | KV2(J) -40℃ |
|---|---|---|---|---|
| Example value | 590 | 495 | 28 | 112, 120, 118 |
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