Q460qDNH bridge steel plate, Q460qENH steel plate fixed rolling, Q460qDNHZ15 Wugang bridge plate

Q460qDNH bridge steel plate, Q460qENH steel plate fixed rolling, Q460qDNHZ15 Wugang bridge plate

Q460qDNH bridge steel plate, the main difference is in the weather resistance, the former weather resistance is generally higher than the latter, through the comparison of chemical composition, it can be clearly seen that Si, Mn, Nb, V, Ti, Als, Cr, Ni, Cu and other elements requirements are obviously different, the principle is to change the performance of the material by adding different content of chemical elements.

Q460qENH steel plate fixed rolling: Wugang Xiangyang

Q460qDNH material is weathering bridge steel, the technical standard is GB/T 714-2015 standard, weight, size, shape and allowable error are GB/T 709-2019 standard, and Z-direction performance is GB/T 5313-2010 standard.

The modified material has high performance, good weather resistance and low temperature resistance.

Q460qENH steel plate process

flow (1) material (scrap steel, pig iron and molten iron)

(2) electric furnace (100 tons of electric arc furnace exercise), converter

(3) LF furnace molten

(4) VD or VOD furnace molten steel vacuum treatment

(5) Die casting (a variety of key die casting lines) or continuous casting (large slab continuous casting machine); (1. Steel ingot remelting treatment 50 tons slab electroslag furnace)

(6) Heating (continuous furnace and soaking furnace)

(7) Steel plate rolling (4100 and 4200mm rolling mills)

(8) Steel plate heat treatment

(9) Steel plate

The mechanical functional characteristics of Q460qENH are: strength, hardness, plasticity, fatigue, and impact toughness.

Q460qENH Chemical function: corrosion resistance, high temperature oxidation.

Q460qENH Physical functions: density, melting point, thermal expansion, magnetism, conductivity.

Q460qENH process function: cutting function, malleability, castability, weldability.