Home / Standards / GB/T 19744 GB/T 19744 Standard Test Method for Plane-Strain Crack Arrest Toughness KIa of Ferritic Steels — 2005 铁素体钢平面应变止裂韧度 KIa试验方法 - 2005 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A