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Material Overview • DIN

P	Steel	K	Cast Iron	S	High-Temp Alloys
M	Stainless Steel	N	Non-Ferrous	H	Hardened Materials

material			strength	hardness	hardness			material
group		description content	RM (MPa)*	(HB)	(HRC)			number
P0	Low-Carbon Steels, Long Chipping	C <0,25%	<530	<125	–			–
P1	Low-Carbon Steels, Short Chipping, Free Machining	C <0,25%	<530	<125	–		C15, Ck22, ST37-2, S235JR, 9SMnPb28, GS38
P2	Medium- and High-Carbon Steels	C >0,25%	>530	<220	<25			ST52, S355JR, C35, GS60, Cf53
P3	Alloy Steels and Tool Steels	C >0,25%	600–850	<330	<35		16MnCr5, Ck45, 21CrMoV5-7, 38SMn28
P4	Alloy Steels and Tool Steels	C >0,25%	850–1400	340–450	35–48	100Cr6, 30CrNiMo8, 42CrMo4, C70W2, S6525, X120Mn12
P5	Ferritic, Martensitic, and PH Stainless Steels		– 600–900	<330	<35	100Cr6, 30CrNiMo8, 42CrMo4, C70W2, S6525, X120Mn12

High-Strength Ferritic, Martensitic,

P6 – 900–1350 350–450 35–48 X102CrMo17, G-X120Cr29

and PH Stainless Steels X5CrNi 18 10, X2CrNiMo 17 13 2, G-X25CrNiSi18 9,

M1 Austenitic Stainless Steel – <600 130–200 –

X15CrNiSi 20 12 High-Strength Austenitic Stainless X2CrNiMo 13 4, X5NiCr 32 21, X5CrNiNb 18 10,

M2 – 600–800 150–230 <25

and Cast Stainless Steels G-X15CrNi 25-20 X8CrNiMo27 5, X2CrNiMoN22 5 3, X20CrNiSi25 4,

M3 Duplex Stainless Steel – <800 135–275 <30

G-X40CrNiSi27 4

K1 Grey Cast Iron – 125–500 120–290 <32 GG15, GG25, GG30, GG40, GTW40

Low- and Medium-Strength Ductile Irons (Nodular

K2 – <600 130–260 <28 GGG40, GTS35

Irons) and Compacted Graphite Irons (CGI) High-Strength Ductile Irons and Austempered Ductile

K3 – >600 180–350 <43 GGG60, GTW55, GTS65

Iron (ADI)

N1	Wrought Aluminium		–	–	–	–	AIMg1, AI99.5, AICuMg1, AICuBiPb, AIMgSi1, ALMgSiPb
N2	Low-Silicon Aluminium Alloys and Magnesium Alloys	Si <12,2%		–	–	–			GAISiCu4, GDAISi10Mg
N3	High-Silicon Aluminium Alloys and Magnesium Alloys	Si >12,2%		–	–	–		G-ALSi12, G-AlSi17Cu4, G-AISi21CuNiMg

Copper-, Brass-, Zinc-Based on Machinability Index

N4 – – – – CuZn40, Ms60, G-CuSn5ZnPb, CuZn37, CuSi3Mn

Range of 70–100

N5	Nylon, Plastics, Rubbers, Phenolics, Resins, Fibreglass	–	–	–	–	Lexan®, Hostalen™, Polystyrol, Makrolon®
N6	Carbon, Graphite Composites, CFRP	–	–	–	–		CFK, GFK
N7	Metal Matrix Composites (MMC)	–	–	–	–			–

X1NiCrMoCu32 28 7, X12NiCrSi36 16, X5NiCrAITi31 20,

S1 Iron-Based, Heat-Resistant Alloys – 500–1200 160–260 25–48

X40CoCrNi20 20

S2	Cobalt-Based, Heat-Resistant Alloys	–	1000–1450	250–450	25–48		Haynes® 188, Stellite® 6,21,31
S3	Nickel-Based, Heat-Resistant Alloys	–	600–1700	160–450	<48	INCONEL® 690, INCONEL 625, Hastelloy ®, NIMONIC ® 75
S4	Titanium and Titanium Alloys	–	900–1600	300–400	33–48		Ti1, TiAI5Sn2, TiAI6V4, TiAI4Mo4Sn2

GX260NiCr42, GX330NiCr42, GX300CrNiSi952,

H1 Hardened Materials – – – 44–48

GX300CrMo153, Hardox® 400