Page 148 - Threading_Handbook

THREAD TURNING Machining Data for Threading Quenched and tempered Strength Hardness Material

Tensile

Material
HB
No.
Condition
[N/mm ]
2
ISO
420
125
Annealed
< 0.25 %C
1
>= 0.25 %C
190
Annealed
2
650
Non-alloy steel
250
850
< 0.55 %C
3
and cast steel, free
cutting steel
>= 0.55 %C
Annealed
750
300
5
Quenched and tempered
600
6
200
Annealed 1000 220 4
P Low alloy steel and cast steel (less 930 275 7
than 5% of alloying elements) Quenched and tempered 1000 300 8
1200 350 9
High alloyed steel, cast steel, and Annealed 680 200 10
tool steel Quenched and tempered 1100 325 11
Ferritic/martensitic 680 200 12
Stainless steel and cast steel
Martensitic 820 240 13
M Stainless steel Austenitic 600 180 14
Ferritic/pearlitic 180 15
Grey cast iron (GG)
Pearlitic 260 16
Ferritic
K Nodular cast iron (GGG) Pearlitic 160 17
250
18
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
N >12% Si High temperature 130 25
>1% Pb Free cutting 110 26
Copper alloys Brass 90 27
Electrolitic copper 100 28
Duroplastics, fiber plastics 29
Non-metallic
Hard rubber 30
Fe based Annealed 200 31
Cured 280 32
High temp. alloys Annealed 250 33
S Ni or Co Cured 350 34
based
Cast 320 35
Rm 400 36
Titanium Ti alloys
Alpha+beta alloys cured Rm 1050 37
Hardened 55 HRC 38
Hardened steel
H Chilled cast iron Hardened 60 HRC 39
Cast
40
400
Cast iron Hardened 55 HRC 41

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