Aug 15, 2020 · 3.5 Main steel structureRoof purlinwall purlin. Galvanized purlin:generally use Q345B steel, hot-dip galvanized coil, the galvanizing quantity of double sides should be not less than 275g/m2, factory processed and pre-punched. Paint purlin:Q235B steel is generally used.
China Q345b Steel H Beam, Q345b Steel H Beam China Q345b Steel H Beam manufacturers - Select 2021 high quality Q345b Steel H Beam products in best price from certified Chinese Stainless Steel Product manufacturers, Stainless Steel Material suppliers, wholesalers and factory on Made-in-China
q345d plate hot rolled mill Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2Q345d sheet hot rolled performance GB/T1591 Q345D hot rolled high - steel-plate In grade Q345D, Q is the symbol for yield strength, 345 means Q345D steel can bear a minimum yield strength of 345MPa.q345 steel thickness - Cold Rolled Mild Steel Sheet Coils Q345B,Q345B PLATE,Q345B STEELSteel grade Q345B is the most common used as high strength low alloy structural steel in industry area.Xinsteel can offer steel coils,steel plates,angles,channels for Q345B materials.The equivalent steel grade with Q345B are EN 10025-2 S355JR,ASTM A572/A572 A572 Grade 50 and DIN 17100 St52-3.