... ). Ventilation pipe (3).Outdoor billboards, wall posts, etc. SpecificationsS275 JR hot steel sheet1.Material:Q195,Q235,Q345,SS330,SS400,SS490 ... 1010,1020,1522,1524, ...ASTM A283 Gr.B,Gr.D, ...ASTM A569 Gr. A,B,C, ...ASTM A572 Gr.42,50,60 ... Package, Coating and other Processings:Used in Ships, Cars, Bridges, Machinery, Pressure Vessels, Manufacturing Industries and other fields. S275 JR hot steel sheet