Definition

1. Noun:
   • Grey cast iron: A type of cast iron characterized by its grey fracture surface, which is due to the presence of graphite flakes. It is a common and widely used engineering material known for its good castability, machinability, and vibration damping properties.

Usage Examples

• Noun:
  • Gang xám thường được sử dụng để đúc các bộ phận động cơ. (Grey cast iron is often used to cast engine components.)
  • Tính chất của gang xám phụ thuộc vào cấu trúc graphit. (The properties of grey cast iron depend on the graphite structure.)

Advanced Usage

• Technical Specification: In metallurgy, "gang xám" is classified by its graphite flake morphology and matrix structure (e.g., ferritic, pearlitic).
  • Gang xám pearlitic có độ bền cao hơn gang xám ferritic. (Pearlitic grey cast iron has higher strength than ferritic grey cast iron.)

Variants and Related Words

• Gang (n): Cast iron (general term).
  • Gang trắng: White cast iron.
  • Gang cầu: Ductile cast iron / Nodular cast iron.
• Hợp kim gang (n): Cast iron alloy.

Synonyms

• Grey iron: The direct English equivalent.
• Flake graphite iron: A more descriptive technical term.

Related Phrases

• Vật đúc bằng gang xám (n): Grey iron casting.
  • Chi tiết này là một vật đúc bằng gang xám. (This part is a grey iron casting.)
• Hợp kim sắt-cacbon (n): Iron-carbon alloy (the broader category).

Related Idioms

(This is a highly technical term, so common idioms are not typically associated with it. Usage is primarily in engineering and industrial contexts.)