Page 111 - HOLE MAKING CATALOG p383-544

USER GUIDE
ISO
MATERIAL GROUPS
MATERIALS AND GRADES
Based on ISO 513 and VDI 3323 standards

Tensile Strength Kc1(1) [N/mm2] mc(2) Hardness Material
Material Condition [N/mm2] 0.21 HB Group
Annealed 0.22 125
Non-alloy steel and cast < 0.25 %C Annealed 420 1350 0.24 190 No.
steel, free cutting steel ≥ 0.25 %C Quenched and tempered 0.24 250 1
< 0.55 %C Annealed 650 1500 0.24 220 2
Quenched and tempered 0.24 300 3
≥ 0.55 %C Annealed 850 1675 0.24 200 4
0.24 275 5
Quenched and tempered 750 1700 0.24 300 6
0.23 350 7
Annealed 1000 1900 0.23 200 8
Quenched and tempered 0.21 325 9
600 1775 0.21 200 10
Ferritic/martensitic 0.20 240 11
P Low alloy and cast steel (less than 5% of Martensitic 930 1675 0.20 180 12
alloying elements) 0.28 180 13
Austenitic, duplex 1000 1725 0.25 260 14
Ferritic / pearlitic 0.28 160 15
Pearlitic / martensitic 1200 1800 0.25 250 16
0.3 130 17
High alloyed steel, cast steel and tool steel Ferritic 680 2450 0.25 230 18
Pearlitic 0.25 60 19
Ferritic 1100 2500 0.25 100 20
Pearlitic 0.25 75 21
Stainless steel and cast steel Not hardenable 680 1875 0.25 90 22
M Stainless steel and cast steel Hardenable 0.27 130 23
Not hardenable 820 1875 0.27 110 24
Gray cast iron (GG) Hardenable 0.27 90 25
High temperature 600 2150 100 26
Free cutting 0.24 27
Brass 1150 0.24 200 28
Electrolytic copper 0.24 280 29
Duroplastics, fiber plastics 1350 0.24 250 30
Hard rubber 0.24 350 31
K Nodular cast iron (GGG) Annealed 1225 0.24 320 32
Hardened 33
Annealed 1350 0.24 34
Hardened 35
Malleable cast iron 1225 36
Cast
Pure 1420
Alpha+beta alloys,
Aluminum-wrought alloys hardened 700
Hardened
Aluminum-cast alloys Hardened 800
N Cast
≤12% Si Hardened 700
Copper alloys
>12% Si 700
>1% Pb
750

700

700

700

Non metallic Fe based 2600
3100
High temperature alloys Ni or Co 3300
S based 3300
3300
Titanium alloys 400 1160 37
1050
1245
Hardened steel 55 HRC 38
H Chilled cast iron 4600 60 HRC 39
4700 40
Cast iron 4600 400 41
4500 55 HRC
Steel
Stainless Steel
Cast Iron
Non-ferrous
High Temp. and Titanium Alloys
Hardened Steel and Cast Iron

(1) Specific cutting force for 1 mm2 chip section.
(2) Chip thickness factor.

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