Q195, is a carbon steel. Yield strength 195MPA. Lower than Q235 strength. The price is cheaper. For architectural, structural, and other motorcycle frame. American ASTM grades are Gr.B (σs185). σs185 is the yield strength of 185MPa. China GB / T 700: Q195 international standard ISO: HR2 (σs195) former Soviet Union гOCT: CT1Kп Japanese JIS: SS330 (SS34) (σs205) German DIN: St33 British BS: 040A10 France NF: A33 China national standard steel Q195 representative meaning "yield strength σs = 195MPa", which is based on the experimental values ??measured 16mm of steel bars. If the diameter is 16 ~ 40mm of steel, yield strength is 185MPa, naming the United States is used in the ASTM. Mechanical properties of the mechanical properties [2] Elongation (δ5 /%): ≥33 (steel thickness or diameter ≦ 16mm), ≥32 (steel thickness or diameter> 16-40mm) q195 q195] The main characteristics of high plasticity, toughness and weldability, good pressure processing performance, but low strength. [Application Examples for the manufacture of anchor bolts, Plowshare, chimney, roof, rivets, low carbon steel wire, sheet, pipe, rod, hooks, brackets, welded structures. Rolled sheet and wire rod. Cold and hot rolled steel sheet and its zinc, tin and plastic composite made of thin steel plates for the original lot for roof, decorative plates, general dust pipes, containers, drums, instrument case, switch boxes, protection cover, train cars and so on. Rod is more of a low-carbon cold drawn steel wire made of galvanized steel or galvanized low carbon steel wire, for bundling, tension or as a fixed steel mesh, such as rivets. 3 Heat Treatment heat treatment and microstructure specifications: Heat treatment specifications: hot. Microstructure: ferrite and pearlite. Delivery status: generally hot-rolled (including controlled rolling) delivery. According to the requirements, by mutual agreement, you can also normalizing delivery.