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Standards

• ABNT NBR 6915:1991Steel for die hot forging. Specification
  • Chemical composition
  • Mechanical properties
• ABNT NBR NM 87:1996Carbon steel and steel alloy for general engineering purposes - Designation and chemical composition
  • Chemical composition
• ABNT NBR 9769:1987Normalization heat treatment of rolled or forged carbon steel or steel alloy bars
  • Mechanical properties