宝钢|车辆用馆

a) Rp0.2 b) 7.5mm 5mm 3mm 2.5mm Remark of the specimen shall be determined. b) When it is unable to take the full size samples, the small size samples with the width 7.5mm, 5mm, 3mm or 2.5mm should be used, whichever is the greater.and the absorbed energy should be calculated by dividing the (small size/10). Ó»½¸¿²·½¿´ Ю±°»®¬·» º±® ̧°·½¿´ Ù®¿¼»­ Grade Rm MPa A 519-1010 25MnCr SMA490BW CK35 +C 27CD4 +A 40Cr +C C45E +A 45B2M +N SAE8617 +N 20CrMnTi +N 26MnB5 +N 34MnB5 +N SAE1527 Q+T 25CrMo4 SR/LC E355 +N 380 600 790 490 610 700 620 780 510 -- 480~650 550~730 490~650 510~700 730 580 490~630 240 350 365 600 390 -- -- 320~420 -- -- 300~500 630 520 355 30 16 15 10 26 5 20 25 -- 20 25 20 17 18 22 20 -45 -- 27 0 -- -- -- -- -- -- -- -- -- 21 -40 -- -- -- -- -- -- 140~220 -- 150~190 170~220 140~200 160~230 -- -- 230~320 -- -- Rel a MPa HRC A KV2 b J 15 16