SECO 25.1 Milling

SMG Workpiece materials – Classification

Hard materials

SMG Description

Properties

Reference 16 MnCr 5 60 HRC 42 CrMo 4 50 HRC

k c1.1 2070

m c

H3

Case-hardened steels

58 < HRC < 62

0,14

H5

Quenched & Tempered steels Quenched & Tempered steels Bearing steels Tool steels High Speed Steels (HSS)

38 < HRC < 56

2320

0,18

H7

56 < HRC < 64

100 Cr 6 60 HRC

2480

0,17

H8

38 < HRC < 64

X 40 CrMoV 5 1 50 HRC

2750

0,20

H11

Martensitic stainless steels

38 < HRC < 50

X 20 Cr 13 45 HRC

2300

0,15

H12

Maraged and precipitation- hardened stainless steels

1200 < R m < 1650

X 5 CrNiCuNb 16 4 R m = 1450 N/mm 2

2410

0,17

H21

Manganese steels

23 < HRC < 64

X 120 Mn 12 50 HRC

0

H31

White cast irons

50 < HRC < 64

EN-GJN-HV600(XCr11) 55 HRC

0

Other difficult materials

SMG Description

Properties

Reference

k c1.1

m c

PM1

Low-alloy PM-materials

F-0008 Fe-0.7C

0

PM2

Medium-alloy PM-materials

FLC-4608 Fe2Cu1.8Ni 0.5Mo0.2Mn0.8C

0

PM3

High-alloy PM-materials Exhaust valve seat materials, etc. Hardfacing alloys Welded or plasma-deposited iron-based alloys Hardfacing alloys Welded or plasma-deposited cobalt- and nickel-based alloys Sintered tungsten carbide

0

HF1

0

HF2

0

CC1

G50

0

910

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