U21302

Standards

• GB/T 699:2015Quality carbon structure steels
  • Chemical composition
  • Mechanical properties
  • Physical properties
• GB/T 699:1999Quality carbon structure steels
  • Chemical composition
  • Mechanical properties
• GB/T 3078:2008Technical requirements for quality structural steel cold drawn bars
  • Chemical composition
  • Mechanical properties
• GB/T 711:2008Hot-rolled quality carbon structural steel plates, sheets and wide strips
  • Chemical composition
  • Mechanical properties