High-strength steels can prone to brittle fracture at low temperatures. GB/T 16270 defines Charpy V-notch impact energy requirements at specific temperatures (e.g., -20°C, -40°C, or -60°C) based on the quality sub-grade, ensuring the material remains resilient in freezing climates. 4. Heat Treatment Delivery Conditions
Technical Guide to GB/T 16270 PDF: High-Strength Quenched and Tempered Steel Plates gb t 16270 pdf
This summary contains all the critical information you would find inside the PDF document. High-strength steels can prone to brittle fracture at