In summer, the temperature is very hot, there is more rain, and the weather is more muggy and humid after the rain. Under this state, the surface of galvanized products is easy to re-alkali. Therefore, new and old friends, we must know some common sense about the storage of galvanized products in the rainy season! […]

Carbon (C): With the increase of carbon content, the yield point and tensile strength increase, but the plasticity and impact properties decrease. Too high carbon content is easy to cause unqualified intergranular corrosion. The boundary between steel and iron is controlled by C content: < 2.11% is steel.   Silicon (SI): Si is a deoxidizer […]

European Standard EN 10297-1 seamless circular steel tubes for mechanical and general engineering purposes Non-Alloy Steel Tube Chemical Composition Steel Grade C Si Mn P S Other Elements Steel Name Steel No. Min. Max. Min. Max. Min. Max. Min. Max. E235 1.0308 – 0.17 – 0.35 – 1.20 0.030 0.035 E275 1.0225 – 0.21 – […]

European Standard EN 10297-1 seamless circular steel tubes for mechanical and general engineering purposes Alloy Steel Tube Chemical Composition Steel Grade C Si Mn P S Cr Mo Ni Cu Min Max Min Max Min Max Max Max Min Max Min Max Min Max Max 41Cr4 0.38 0.45 – 0.40 0.60 0.90 0.035 0.035 0.90 […]