... , 50A600, 50A700, 50A800, 50A1000, 50A1300, 65A800, 65A1000, 65A1300, 65A1600Standard: ASTM A677M-99Grade: 47F280, 47F400, 47F450, 64F320, 64F550Standard: EN 10106-1996Grade ... ,SAPH400,SAPH440, ...SAE 1006,1010,1020,1522,1524, ...ASTM A283 Gr.B,Gr.D, ...ASTM A569 Gr. A,B,C, ... ASTM A572 Gr.42 ... RT2,RT3,RT4, ...EN 10130 – DC01,DC03,DC04,DC05,CD06, ...ASTM A611 – A,B,C, ...JIS G3141 – CR1,CR2,CR3,CR4 ...