HIGH SPEED STEELS FOR CUTTING TOOLS HEAT TREATING
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|
AISI
|
GRADE NAME
|
ANNEALING
TEMP.
°F |
TYPICAL
ANN.
HDN.
BRINELL |
PREHEAT
TEMP.
°F |
AUSTENITIZING
TEMP.
°F |
TEMPERING
TEMP.
°F |
TYPICAL
APPLICATION
HARDNESS
HRC. |
|
|
M1 |
REX TMO |
1550/1600 |
217/235 |
1500/1550 |
2175/2225 |
1025/1050 |
64-66 |
|
M2 |
REX M2 (S) |
1550/1600 |
229/241 |
1500/1550 |
2175/2225 |
1025/1050 |
64-66 |
|
M2 |
REX M2 HCHS |
1550/1600 |
229/241 |
1500/1550 |
2175/2200 |
1025/1050 |
64-66 |
|
M3 |
REX M3-1 |
1550/1600 |
229/241 |
1500/1550 |
2185/2210 |
1025/1050 |
65-67 |
|
M4 |
REX M4 |
1550/1600 |
229/241 |
1500/1550 |
2175/2225 |
1025/1050 |
64-66 |
|
M4 |
CPM M4 HC(HS) |
1550/1600 |
235/255 |
1500/1550 |
2175/2200 |
1025/1050 |
64-66 |
|
M7 |
REX M7N |
1500/1550 |
229/241 |
1500/1550 |
2175/2200 |
1025/1050 |
65-67 |
|
M35 |
CPM REX M35 HCHS |
1550/1600 |
229/241 |
1500/1550 |
2175/2210 |
1025/1050 |
65-67 |
|
M42 |
REX M42 |
1575/1650 |
235/269 |
1500/1550 |
2125/2175 |
1025/1050 |
65-68 |
|
T4 |
REX AAA |
NOTE: TOOL BITS SUPPLIED ALREADY HARDENED |
64-66 |
|
T8 |
REX 95 |
NOTE: TOOL BITS SUPPLIED ALREADY HARDENED
|
64-66 |
|
T15 |
CPM T15(HS) |
1550/1600 |
255/277 |
1500/1550 |
2200/2250 |
1025/1050 |
65-67 |
|
M62 |
CPM REX 20(HS) |
1550/1600 |
262/285 |
1500/1550 |
2150/2175 |
1025/1050 |
66-68 |
|
M3+Co |
CPM REX 45(HS) |
1550/1600 |
255/277 |
1500/1550 |
2175/2190 |
1025/1050 |
66-68 |
|
M4+Co |
CPM REX 54(HS) |
1575/1625 |
241/277 |
1500/1550 |
2100/2200 |
1025/1050 |
64-66 |
|
M48 |
CPM REX 76(HS) |
1550/1600 |
285/311 |
1500/1550 |
2150/2175 |
1025/1050 |
67-69 |
|
|
CPM REX 121(HS) |
1625/1675 |
360/410 |
1500/1550 |
2050/2225 |
1025/1050 |
69-71 |
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Note: High Speed Steels may be quenched in salt, oil, high pressure gas, or forced air.
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