What is Q195 steel?
Q195 is a type of ordinary carbon structural steel specified in the Chinese national standard GB/T 700-2006. "Q" represents yield strength, and "195" indicates a minimum yield strength ≥195MPa for a thickness ≤16mm. It falls under the category of low-carbon steel.
2. What is the standard for Q195?
The core standard is GB/T 700-2006 "Carbon Structural Steel." Its chemical composition, mechanical properties, and delivery condition must all meet the requirements of this standard.
3. What are the chemical components of Q195?
Carbon (C) ≤0.12%, Silicon (Si) ≤0.30%, Manganese (Mn) 0.25%-0.50%, Sulfur (S) ≤0.050%, Phosphorus (P) ≤0.045%. Low carbon and low impurities are its core characteristics.
4. What are the international equivalents of Q195?
International equivalents: ISO HR2; ASTM Gr.B (USA); JIS SS330 (Japan); DIN St33 (Germany); BS 040A10 (UK).