(洛氏C) 150 kgf Diamond (钻石) HRC 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

Vickers Hardness(硬度) HV 940 900 865 832 800 772 746 720 697 674 653 633 613 595 577 560 544 528 513 498

Brinell (布氏) 3000 kgf 10 mm Ball (球) HB --- --- --- 739 722 705 688 670 654 634 615 595 577 560 543 525 512 496 481 469

硬度换算表 (以HRC硬度为基准) 1

Rockwell Hardness Rockwell Superficial Hardness

(洛氏硬度) (罗克韦尔表面硬度)

Rockwell A Rockwell BRockwell D

(洛氏A) (洛氏B) (洛氏D) 60 kgf Diamond (钻石) HRA 85.6 85.0 84.5 83.9 83.4 82.8 82.3 81.8 81.2 80.7 80.1 79.6 79.0 78.5 78.0 77.4 76.8 76.3 75.9 75.2

100 kgf 1//16" ball(1//16球) HRB --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

100 kgf Diamond (钻石) HRD 76.9 76.1 75.4 74.5 73.8 73.0 72.2 71.5 70.7 69.9 69.2 68.5 67.7 66.9 66.1 65.4 64.6 63.8 63.1 62.1

近似 (洛氏C) Tensile

15 kgf 30 kgf 45 kgf 150 kgf

(拉伸)

1/16" ball1/16" ball1/16" ballStrength Diamond (1/16球) (1/16球) (1/16球) (强度) (钻石) HR15N HR30N HR45N ksi (MPa) HRC 93.2 84.4 75.4 --- 68 92.9 83.6 74.2 --- 67 92.5 82.8 73.3 --- 66 92.2 81.9 72.0 --- 65 91.8 81.1 71.0 --- 64 91.4 80.1 69.9 --- 63 91.1 79.3 68.8 --- 62 90.7 78.4 67.7 --- 61 90.2 77.5 66.6 --- 60 89.8 76.6 65.5 --- 59 89.3 75.7 64.3 --- 58 88.9 74.8 63.2 --- 57 88.3 73.9 62.0 --- 56 87.9 73.0 60.9 2075 55 87.4 72.0 59.8 2015 54 86.9 71.2 58.6 1950 53 86.4 70.2 57.4 1880 52 85.9 69.4 56.1 1820 51 85.5 68.5 55.0 1760 50 85.0 67.6 53.8 1695 49