CONTINUOUS-CAST
HARDNESS/MACHINABILITY RATINGS

Reference
guide

Continuous-Cast Hardness Ratings

Copper alloy UNS No. Product description Hardness Type Typical or Minimum Hardness
C94300 High-Leaded Tin Bronze Brinell 500 kg load Typical 45
C94100 High-Leaded Tin Bronze Brinell 500 kg load Typical 50
C89520 Bismuth Tin Bronze Brinell 500 kg load Minimum 54
C84400 Leaded Semi-Red Brass Brinell 500 kg load Typical 55
C84800 Leaded Semi-Red Brass Brinell 500 kg load Typical 55
C89831 Bismuth Tin Bronze Brinell 500 kg load Typical 55
C89844 Bismuth Tin Bronze Brinell 500 kg load Typical 55
C93800 High-Leaded Tin Bronze Brinell 500 kg load Typical 55
C97300 Nickel Silver Bronze Brinell 500 kg load Typical 55
C83600 Leaded Red Brass Brinell 500 kg load Typical 60
C83800 Leaded Red Brass Brinell 500 kg load Typical 60
C84200 Leaded Semi-Red Brass Brinell 500 kg load Typical 60
C89833 Bismuth Tin Bronze Brinell 500 kg load Typical 60
C93400 High-Leaded Tin Bronze Brinell 500 kg load Typical 60
C93500 High-Leaded Tin Bronze Brinell 500 kg load Typical 60
C93700 High-Leaded Tin Bronze Brinell 500 kg load Typical 60
C93900 High-Leaded Tin Bronze Brinell 500 kg load Typical 63
C89835 Bismuth Tin Bronze Brinell 500 kg load Typical 65
C92200 Leaded Tin Bronze Brinell 500 kg load Typical 65
C93200 Leaded Tin Bronze Brinell 500 kg load Typical 65
C93600 High-Leaded Tin Bronze Brinell 500 kg load Typical 65
C89320 Bismuth Tin Bronze Brinell 500 kg load Typical 70
C90300 Tin Bronze Brinell 500 kg load Typical 70
C92300 Leaded Tin Bronze Brinell 500 kg load Typical 70
C89325 Bismuth Tin Bronze Brinell 500 kg load Typical 73
C85700 Leaded Yellow Brass Brinell 500 kg load Typical 75
C90500 Tin Bronze Brinell 500 kg load Typical 75
C92900 Leaded Nickel-Tin Bronze Brinell 500 kg load Typical 75
C92700 Leaded Tin Bronze Brinell 500 kg load Typical 77
C92500 Nickel-Phosphor Bronze Brinell 500 kg load Typical 80
C94000 High-Leaded Tin Bronze Brinell 500 kg load Typical 80
C94800 Leaded Nickel-Tin Bronze Brinell 500 kg load Typical 80
C97600 Nickel Silver Bronze Brinell 500 kg load Typical 80
C91600 High Tin Bronze Brinell 500 kg load Typical 85
C94700 Nickel-Tin Bronze Brinell 500 kg load Typical 85
C86400 Manganese Bronze Brinell 500 kg load Typical 90
C90800 Tin Bronze Brinell 500 kg load Typical 95
C90810 Tin Bronze Brinell 500 kg load Typical 95
C91700 High Tin Bronze Brinell 500 kg load Typical 95
C90700 Tin Bronze Brinell 500 kg load Typical 102
C87850 Silicon Brass Brinell 500 kg load Minimum 103
C91000 Tin Bronze Brinell 500 kg load Typical 105
C92800 Leaded Tin Bronze Rockwell “B” Minimum 72*
C95300 Aluminum Bronze Brinell 3000 kg load Typical 125
C95200 Aluminum Bronze Brinell 3000 kg load Typical 125
C86500 Manganese Bronze Brinell 3000 kg load Typical 130
C97800 Nickel Silver Bronze Brinell 3000 kg load Typical 130
C95300HT Aluminum Bronze Brinell 3000 kg load Typical 132
C91100 High Tin Bronze Brinell 3000 kg load Typical 135
C95600 Nickel-Aluminum Bronze Brinell 3000 kg load Typical 140
C96400 Copper-Nickel Brinell 3000 kg load Typical 140
C99500 Special Alloy Brinell 500 kg load Typical 145
C86700 Manganese Bronze Brinell 3000 kg load Typical 155
C95800 Nickel-Aluminum Bronze Brinell 3000 kg load Typical 159
C91300 Tin Bronze Brinell 3000 kg load Typical 160
C95400 Aluminum Bronze Brinell 3000 kg load Typical 170
C95410 Aluminum Bronze Brinell 3000 kg load Typical 170
C95400HT Aluminum Bronze Brinell 3000 kg load Typical 177
C95410HT Aluminum Bronze Brinell 3000 kg load Typical 177
C86200 Manganese Bronze Brinell 3000 kg load Typical 180
C94700HT Nickel-Tin Bronze Brinell 3000 kg load Typical 180
C95510 (AMS 4880) Nickel-Aluminum Bronze Brinell 3000 kg load Minimum 192
C95500 Nickel-Aluminum Bronze Brinell 3000 kg load Typical 208
C86300 Manganese Bronze Brinell 3000 kg load Typical 223
C95500HT Nickel-Aluminum Bronze Brinell 3000 kg load Typical 228
C95900 Aluminum Bronze Brinell 3000 kg load Minimum 241
C95520HT Nickel-Aluminum Bronze Brinell 3000 kg load Minimum 262
C96900HT Nickel-Tin Bronze Rockwell “C” Minimum 32*
CONCAST380 Aluminum Bronze Brinell 3000 kg load Minimum 340
*Brinell equivalent 114 (500 kg load).
Note: HT = heat treated

Continuous-Cast Machinability Ratings

Copper alloy UNS No. Product description Machinability
C83800 Leaded Red Brass 90
C84400 Leaded Semi-Red Brass 90
C84800 Leaded Semi-Red Brass 90
C89520 Bismuth Tin Bronze 85
C89831 Bismuth Tin Bronze 85
C83600 Leaded Red Brass 84
C89833 Bismuth Tin Bronze 81
C84200 Leaded Semi-Red Brass 80
C85700 Leaded Yellow Brass 80
C89320 Bismuth Tin Bronze 80
C89325 Bismuth Tin Bronze 80
C93600 High-Leaded Tin Bronze 80
C93700 High-Leaded Tin Bronze 80
C93800 High-Leaded Tin Bronze 80
C93900 High-Leaded Tin Bronze 80
C94000 High-Leaded Tin Bronze 80
C94100 High-Leaded Tin Bronze 80
C94300 High-Leaded Tin Bronze 80
C87850 Silicon Brass 70
C89835 Bismuth Tin Bronze 70
C89844 Bismuth Tin Bronze 70
C92800 Leaded Tin Bronze 70
C93200 Leaded Tin Bronze 70
C93400 High-Leaded Tin Bronze 70
C93500 High-Leaded Tin Bronze 70
C97300 Nickel Silver Bronze 70
C97600 Nickel Silver Bronze 70
C86400 Manganese Bronze 65
C95400 Aluminum Bronze 60
C95400HT Aluminum Bronze 60
C95410 Aluminum Bronze 60
C95410HT Aluminum Bronze 60
C95600 Nickel-Aluminum Bronze 60
C97800 Nickel Silver Bronze 60
C86700 Manganese Bronze 55
C95300 Aluminum Bronze 55
C95300HT Aluminum Bronze 55
C94800 Leaded Nickel-Tin Bronze 50
C95500 Nickel-Aluminum Bronze 50
C95500HT Nickel-Aluminum Bronze 50
C95510 (AMS 4880) Nickel-Aluminum Bronze 50
C99500 Special Alloy 50
C92700 Leaded Tin Bronze 45
C95520HT Nickel-Aluminum Bronze 45
C92200 Leaded Tin Bronze 42
C92300 Leaded Tin Bronze 42
C92900 Leaded Nickel-Tin Bronze 40
C86200 Manganese Bronze 30
C90300 Tin Bronze 30
C90500 Tin Bronze 30
C92500 Nickel Phosphor Bronze 30
C86500 Manganese Bronze 26
C90700 Tin Bronze 20
C90810 High Tin Bronze 20
C91000 Tin Bronze 20
C91600 High Tin Bronze 20
C91700 High Tin Bronze 20
C94700 Nickel-Tin Bronze 30
C94700HT Nickel-Tin Bronze 30
C95200 Aluminum Bronze 20
C95800 Nickel-Aluminum Bronze 20
C96400 Copper-Nickel 20
C91100 High Tin Bronze 10
C91300 Tin Bronze 10
C95900 Aluminum Bronze 10
C86300 Manganese Bronze 8
Note: HT = heat treated.