NEWS-Zhishang Steel

Specifying Colour on Prepainted Steel: RAL Numbers, Gloss, the Back Coat and the 15-Tonne Minimum2026-09-30

Colour is the one order line everyone reads and nobody specifies. What a RAL number does and does not commit the mill to, why the back coat is a separate produc···

Matching Steel Grades Across Standards: What Q235, SS400, A36 and S235JR Actually Promise2026-09-30

The number in a steel grade means different things in different systems: MPa yield, MPa tensile, ksi yield, or a JIS quality class with no number at all. How Q2···

Specifying Steel for Solar Mounting Structures: Posts, Rails, Clamps and the Coating Question2026-09-29

A mounting structure must behave like a structure and a coating product at once. The stack from posts to clamps, which product form each layer wants, pre-galvan···

Steel for Agricultural Buildings: Matching Roof, Frame and Fittings to the Farm Environment2026-09-29

Farm buildings combine daily moisture, dust and manure gases with a ignore-it maintenance budget. How to match galvalume and galvanized corrugated roofing, pain···

Ordering the Right Steel Form: Master Coil, Slit Strip, Cut-to-Length Sheet and Blanks2026-09-28

The form line on an enquiry changes price, tolerance and yield as much as the grade does. What each conversion step buys, what decoilers and slitters require, w···

Storing Steel Coil and Sheet: Condensation, White Rust and the Wrapping Problem2026-09-28

Steel arrives wrapped for the voyage, not for the quarter ahead. How condensation makes white rust, what transit packing does and stops doing, which surface opt···