Q265GNH high weathering steel

Introduction to Q265GNH:
Q265GNH weathering steel: by adding a small amount of alloying elements such as Cu, P, Cr, Ni, etc., it forms a protective layer on the surface of the metal substrate to improve the atmospheric corrosion resistance of steel.

Representation method of Q265GNH grade:
The grade of steel consists of the first letter "Q", "GNH" or "NH" in Chinese Pinyin of "yield strength", "high weather resistance", or "weather resistance", the lower limit of yield strength and the quality grade (A, B, C , D, E) composition.
Example: Q345QGNHC
Q--the first letter of the Chinese pinyin of the word "Qu" in the yield strength;
355--The lower limit of the lower yield strength of steel, the unit is N/mm2;
GNH--the first letter of the Chinese pinyin of "Gao", "Nai" and "Hou" respectively;
C - quality grade.

Q265GNH smelting method:
Steel is smelted by converter or electric furnace and is killed steel. Unless the buyer has special requirements, the smelting method is selected by the supplier.

Q265GNH Delivery Status:
Hot-rolled steel is delivered in hot-rolled, controlled-rolled or normalized state, steel grades Q460NH, Q500NH, Q550NH can be delivered in quenched and tempered state, and cold-rolled steel is generally delivered in annealed state.

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