Page 228 - Threading_Handbook

THREAD MILLING Machining Data for Indexable Insert Threading Tools Tensile Strength Hardness Material

HB
No.
2
[Ksp]
[N/mm ]
Material
ISO
Condition
1
61
125
420
< 0.25 %C
Annealed
94
650
≥ 0.25 %C
2
Annealed
190
850
3
Quenched and tempered
123
< 0.55 %C
250
Non-alloy steel
≥ 0.55 %C
Annealed
4
220
109
750
and cast steel,
free cutting steel
6
200
600
87
Annealed
P
930
275
135
7
Low alloy steel and cast steel
300
145
(less than 5% of alloying Quenched and tempered 1000 145 300 5
1000
8
elements) Quenched and tempered 1200 174 350 9
High alloyed steel, cast steel, Annealed 680 99 200 10
and tool steel Quenched and tempered 1100 160 325 11
Ferritic/martensitic 680 99 200 12
Stainless steel and cast steel Martensitic 820 119 240 13
M Stainless steel Austenitic 600 87 180 14
Ferritic 160 17
Grey cast iron (GG) Pearlitic 250 18
K Cast iron nodular (GGG) Ferritic/pearlitic 180 15
16
260
Pearlitic
Ferritic 130 19
Malleable cast iron Pearlitic 230 20
Not cureable 60 21
Aluminum- wrought alloy Cured 100 22
=<12% Si Not cureable 75 23
Aluminum-cast, Cured 90 24
alloyed >12% Si High temperature 130 25
N >1% Pb Free cutting 110 26
Brass 90 27
Copper alloys Electrolitic copper 100 28
Duroplastics, fiber
plastics 29
Non-metallic Hard rubber 30
Fe based Annealed 200 31
Cured 280 32
Annealed 250 33
S High temp. Ni or Co Cured 350 34
alloys based Cast 320 35
RM 400 58 36
Titanium Ti alloys Alpha+beta alloys cured RM 1050 152 37
Hardened 55 HRC 38
H Hardened steel Hardened 60 HRC 39
Cast
Chilled cast iron
40
400
Cast iron Hardened 55 HRC 41
228 ISCAR