Page 40 - HOLE_MAKING_CATALOG_INCH_2022_P373-P446

TAPS Tap Selection Guide and Cutting Speed Recommendations USER GUIDE

Hole Type (4) Tap Color Code (1)
Tool Material (1) (2)
Surface Treatment/Coating
Material Group No. 1 2 3 Tensile 5 Flute Hand and Angle (4) (3)
Lead According to DIN 2197
4
Hole Type
Chip
Annealed
61
<0.25% C
125
T
1 Material Condition Strength [ksi] Hardness HB Ext. Long Coolant
2 ≥0.25% C Annealed 94 190 Medium T
3 Non-alloy steel <0.55% C Quenched and tempered 123 250 Long T
4 and cast steel, ≥0.55% C Annealed 109 220 Long T
7 free cutting steel 145 275 Long X
8 Quenched and tempered 87 300 Long X
9 135 350 Long A
10 High alloyed steel, cast Annealed 145 200 Long X
11 steel and tool steel Quenched and tempered 174 325 Long X
12 Stainless steel and cast steel Ferritic/martensitic 99 200 Medium A
13 Martensitic 160 240 Long A
14 Stainless steel and cast steel Austenitic, duplex 87 180 Long A
15 Gray cast iron (GG) Ferritic / pearlitic 180 Ext. Short X
16 Pearlitic / martensitic 260 Ext. Short X
17 Nodular cast iron (GGG) Ferritic 160 Short X
18 Pearlitic 250 Ext. Short X
19 Ferritic 130 Short X
20 Malleable cast iron Pearlitic 230 Short X
21 Not hardenable 60 Medium T
22 Aluminum-wrought alloys Hardenable 100 Medium T
23 Not hardenable 75 Short T
24 Aluminum- ≤12% Si Hardenable 90 Short T
cast alloys
25 >12% Si High temperature 130 Short T
26 >1% Pb Free cutting 110 Med/Short T
27 Copper alloys Brass 90 Long T
28 Electrolytic copper 100 Long T
29 Non metallic Duroplastics, fiber plastics Short Z
31 Annealed 200 Long A
32 Fe based Hardened 280 Long A
33 High temperature Annealed 250 Long A
alloys
34 Ni or Co based Hardened 350 Long A
35 Cast 250 Long A
36 Titanium alloys Pure 58 190 Med/Short A
37 Alpha+Beta alloys, hardened 152 310 Med/Short A
(1) See page 411 Coolant
(2) See page 426 A - Cutting oil
(3) See page 427 T - Oil emulsion
(4) See page 427 X - Oil or emulsion
Z - Dry or emulsion

412 ISCAR