Q195

describes

Q195, is a carbon steel . Yield strength 195MPA. Low intensity than Q235. Cheaper. Used in construction, structure, motorcycle frame and so on.U.S. ASTM grades are Gr.B (σs185). σs185 is the yield strength is 185MPa. 　　China GB / T 700: Q195
　　International Standard ISO: HR2 (σs195)
　　The former Soviet Union гOCT: CT1Kп
　　Japan JIS: SS330 (SS34) (σs205)
　　German DIN: St33
　　UK BS: 040A10
　　France NF: A33
　　China national standard steel Q195 represent means "yield strength σs = 195MPa", which is based on the steel bar measuring 16mm experimental values. If the diameter is 16 ~ 40mm steel, yield strength is 185MPa, ASTM adopted naming the United States is this.

chemical composition

【Chemical Composition】 (mass fraction) (%) 　　C :0.06-0 .12
　　Mn :0.25-0 .50
　　Si: ≦ 0.30
　　S: ≦ 0.050　　
       P: ≦ 0.045
　　Deoxy method: F, b, Z

mechanical properties

【Mechanical properties】
　　Tensile strength (σb / MPa) :315-430
　　Elongation (δ5 /%): ≧ 33 ( steel thickness or diameter of ≦ 16mm), ≧ 32 (steel thickness or diameter> 16-40mm)

  

q195

【Main Features】　　With high plasticity , toughness and welding properties, good pressure processing performance, but strength is low.　　 【Application examples】 　　For the manufacture of anchor bolts, Plowshare, chimney, roof, rivets, low carbon steel wire, sheet, pipe , rod, hook, bracket, welded structures.

Heat Treatment

Heat treatment and microstructure specifications: heat treatment specifications: hot.
Microstructure: ferrite + pearlite.　　
Delivery status: generally hot (including the control rolled) state delivery. Requirements according to the demand side, by mutual agreement, the state of delivery can also be normalized.