SMG Workpiece materials – Classification
Steels, ferritic and martensitic stainless steels
SMG Description
Properties
Reference
k c1.1 1500
m c
P1
Free-cutting steels
360 < R m < 880
11 SMn30 R m = 385 N/mm 2 S235JRG2 R m = 420 N/mm 2
0,14
P2
Low-alloy ferritic steels, C < 0.25%wt Low-alloy weldable general structural steels Ferritic & ferritic/pearlitic steels, C < 0.25%wt Weldable general structural steels Case-hardening steels
320 < R m < 600
1600
0,23
P3
430 < R m < 610
16 MnCr 5 R m = 550 N/mm 2
1800
0,14
P4
Low-alloy general structural steels, 0.25% < C < 0.67%wt Low-alloy Quench & Temper steels
520 < R m < 1200
C 45E R m = 660 N/mm 2 42 CrMo 4 R m = 700 N/mm 2 C 100S R m = 600 N/mm 2 100 Cr 6 R m = 650 N/mm 2 X 40 CrMoV 5 1 R m = 700 N/mm 2 X 20 Cr 13 R m = 675 N/mm 2 X 5 CrNiCuNb 16 4 R m = 1100 N/mm 2
2000
0,15
P5
Structural steels, 0.25% < C < 0.67%wt Quench & Temper steels
550 < R m < 1200
2020
0,18
P6
Low-alloy through-hardening steels, C > 0.67%wt Low-alloy spring and bearing steels
520 < R m < 1200
2100
0,17
P7
Through-hardening steels, C > 0.67%wt Spring and bearing steels
600 < R m < 1200
2160
0,17
P8
Tool steels High Speed Steels (HSS)
600 < R m < 1200
2400
0,20
P11
Ferritic & martensitic stainless steels
415 < R m < 1200
2000
0,15
P12
Maraging and precipitation-hardening stainless steels
500 < R m < 1200
2100
0,17
Free-cutting, austenitic and duplex stainless steels
SMG Description
Properties
Reference
k c1.1 1700
m c
M1
Free-cutting austenitic stainless steels
X 10 CrNiS 18 9
0,14
M2
Low-alloy austenitic stainless steels
X 5 CrNi 18 10
1920
0,18
M3
Medium-alloy austenitic stainless steels
X 2 CrNiMo 18 14 3 2070
0,17
M4
High-alloy austenitic and duplex stainless steels
X 2 CrNiMoN 22 5 3 2230
0,16
M5
Difficult high-alloy austenitic and duplex stainless steels
X 2 CrNiMoN 25 7 4 2510
0,13
908
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