里氏硬度計(jì)測(cè)試范圍(表一)
材料 | 硬度制 | 沖擊裝置 | |||||
D/DC | D+15 | C | G | E | DL | ||
Steel and cast steel 鋼和鑄鋼 | HRC | 17.9~68.5 | 19.3~67.9 | 20.0~69.5 | 22.4~70.7 | 20.6~68.2 | |
HRB | 59.6~99.6 | 47.7~99.9 | 37.0~99.9 | ||||
HRA | 59.1~85.8 | 61.7~88.0 | |||||
HB | 127~651 | 80~638 | 80~683 | 90~646 | 83~663 | 81~646 | |
HV | 83~976 | 80~937 | 80~996 | 84~1042 | 80~950 | ||
HS | 32.2~99.5 | 33.3~99.3 | 31.8~102.1 | 35.8~102.6 | 30.6~96.8 | ||
Steel鍛鋼 | HS | 32.2~99.5 | |||||
CWT、ST 合金工具鋼 | HRC | 20.4~67.1 | 19.8~68.2 | 20.7~68.2 | 22.6~70.2 | ||
HV | 80~898 | 80~935 | 100~941 | 82~1009 | |||
Stainless steel 不銹鋼 | HRB | 46.5~101.7 | |||||
HB | 85~655 | ||||||
HV | 85~802 | ||||||
GC. IRON 灰鑄鐵 | HRC | ||||||
HB | 93~334 | 92~326 | |||||
HV | |||||||
NC、IRON 球墨鑄鐵 | HRC | ||||||
HB | 131~387 | 127~364 | |||||
HV | |||||||
C.ALUM 鑄鋁合金 | HB | 19~164 | 23~210 | 32~168 | |||
HRB | 23.8~84.6 | 22.7~85.0 | 23.8~85.5 | ||||
BRASS 銅鋅合金 | HB | 40~173 | |||||
HRB | 13.5~95.3 | ||||||
BRONZE銅錫(鋁)合金 | HB | 60~290 | |||||
COPPER純銅 | HB | 45~315 |