Page 348 - ISCAR(HOLE_MAKING_CATALOG_65)

USER GUIDE
TAPS Tap Selection Guide and Cutting Speed Recommendations

Hole Type (4) Tap Color Code (1)
Tool Material (1)
Surface Treatment/Coating (2)
Flute Hand and Angle (3)
Material No. Material 2 Condition Tensile Strength Hardness HB Chip Hole Type Coolant
Lead According to DIN 2197
1
4
(4)
5
3
2
1 < 0.25 %C Annealed [N/mm ] 125 Ext. Long T
420
2 >= 0.25 %C Annealed 650 190 Medium T
3 Non-alloy steel < 0.55 %C Quench and tempered 850 250 Long T
4 and cast steel, >= 0.55 %C Annealed 750 220 Long T
7 free cutting steel 930 275 Long X
8 Quench and tempered 1000 300 Long X
9 1200 350 Long A
10 Non-alloy steel and cast Annealed 680 200 Long X
11 steel, free cutting steel Quench and tempered 1100 325 Long X
12 Ferritic/Martensitis 680 200 Medium A
13 Stainless steel Martensitic 820 240 Long A
14 Stainless steel Austenitic 600 180 Long A
15 Grey cast iron (GG) Ferritic/pearlitic 180 Ext. Short X
16 Pearlitic 260 Ext. Short X
17 Ferritic 160 Short X
18 Cast iron nodular (GGG) Pearlitic 250 Ext. Short X
19 Malleable cast iron Ferritic 130 Short X
20 Pearlitic 230 Short X
21 Not cureable 60 Medium T
22 Aluminum-wrought alloy Cured 100 Medium T
23 <=12% Si Not cureable 75 Short T
24 Aluminum- Cured 90 Short T
cast, alloyed
25 >12% Si High temp. 130 Short T
26 >1% Pb Free cutting 110 Med/Short T
27 Copper alloys Brass 90 Long T
28 Electrolitic copper 100 Long T
29 Non-metalic Duroplastics, fiber plastics Short Z
31 High temp. alloys Fe based Annealed 200 Long A
32 Cured 280 Long A
33 Annealed 250 Long A
34 Super alloys Ni or Co based Cured 350 Long A
35 Cast 250 Long A
36 400 Med/Short A
37 Titanium and Ti alloys Alpha+beta alloys cured 1050 Med/Short A
(1) See page 348 Coolant
(2) See page 362 A - Cutting oil
(3) See page 363 T - Oil emulsion
(4) See page 363 X - Oil or emulsion
Z - Dry or emulsion

346 ISCAR