Material
The primary material used in the production of YB/T 4112 Q265GNH welded steel tubes is Q265GNH, a weather-resistant steel known for its exceptional resistance to atmospheric corrosion. This material's unique properties make it an ideal choice for outdoor structural applications.
Specification
The specification for YB/T 4112 Q265GNH welded steel tubes includes various parameters that define their dimensions, tolerances, and performance characteristics. These specifications are crucial in ensuring the tubes meet the intended design and performance standards.
Chemical Composition
The following table outlines the chemical composition of Q265GNH steel, which is a key factor in its resistance to atmospheric corrosion:
| Element | C | Si | Mn | P | S | Cr | Ni | Cu |
|---|---|---|---|---|---|---|---|---|
| Composition % | 0.17-0.24 | 0.17-0.37 | 0.80-1.30 | ≤0.030 | ≤0.030 | 0.40-0.80 | ≤0.65 | 0.25-0.55 |
Mechanical Properties
The mechanical properties of YB/T 4112 Q265GNH welded steel tubes play a crucial role in their performance. Here are the key mechanical properties:
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Impact Test (Joules) |
|---|---|---|---|---|
| Value (min) | 325 | 265 | 23 | 40 |
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