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B480GNQR hot rolled steel is to add a certain amount of alloy elements, such as Cu, P, Cr and so on to promote the formation of protective oxide coating on the surface of the product to improve the corrosion resistance of steel in the atmosphere.
B480GNQR weathering steel application: mainly used in manufacturing container, railway vehicles, environmental protection equipment, decorative sculpture, curtain wall, engineering machinery, steel structure, structure of welding manufacturing and decoration. To promote the use of various structural parts with a certain corrosion resistance requirements of the manufacture and aesthetic decoration.
B480GNQR hot rolled weathering steel chemical composition:
| Grade | C | Si | Mn | P | S | Cu | Cr | Ni |
| B480GNQR | ≤0.12 | 0.25~ 0.75 |
0.20~ 0.50 |
0.07~ 0.15 |
0.035 | 0.25~ 0.55 |
0.30~ 1.25 |
≤0.65 |
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