Numbering System for German Metals and Alloys.
Material Numbers (Werkstoffnummer - WNR)

Index to WNR for Cast Steels by Casting Groups and Series of Numbers

	Pig iron
		0.0000	0.0999	General-purpose grades for steelmaking
		0.1000	0.1999	General-purpose grades for casting
		0.2000	0.2999	Alloy pig iron
	Master alloys (deoxydants and alloying elements, including ferroalloys)
		0.3000	0.3099	Specular pig iron
		0.3100	0.3199	FeMn, Mn, FeSiMn
		0.3200	0.3299	Reserved
		0.3300	0.3399	FeSi, Si, FeSiZr
		0.3400	0.3599	Reserved
		0.3600	0.3699	FeAlSi,FeAlSiMn, NiSiMg, FeNiMg
		0.3700	0.3799	FeSiMg, NiMg,CaSiMg, NiSiMg, FeNiMg
		0.3800	0.3899	SiC, CaC2
		0.3900	0.3999	Reserved
		0.4000	0.4099	FeCr,FeCrSi,Cr
		0.4100	0.4199	Reserved
		0.4200	0.4299	FeMo
		0.4300	0.4399	FeW
		0.4400	0.4499	FeNi
		0.4500	0.4599	FeTi
		0.4600	0.4699	Reserved
		0.4700	0.4799	FeNb, FeV, FeTa
		0.4800	0.4899	FeB, FeP
		0.4900	0.4999	Reserved
	Cast iron types
		0.6000	0.6999	Grey cast iron
		0.6000	0.6199	unalloyed
		0.6200	0.6299	alloyed Cr
		0.6300	0.6399	alloyed Cu
		0.6400	0.6499	alloyed Mn
		0.6500	0.6599	alloyed Mo
		0.6600	0.6699	alloyed Ni
		0.6700	0.6799	alloyed Si
		0.6800	0.6899	others
		0.6900	0.6999	Reserved
		0.7000	0.7999	Ductile cast iron
		0.7000	0.7199	unalloyed
		0.7200	0.7299	alloyed Cr
		0.7300	0.7399	alloyed Cu
		0.7400	0.7499	alloyed Mn
		0.7500	0.7599	alloyed Mo
		0.7600	0.7699	alloyed Ni
		0.7700	0.7799	alloyed Si
		0.7800	0.7899	others
		0.7900	0.7999	Reserved
		0.8000	0.8999	Malleable cast iron
		0.8000	0.8199	unalloyed
		0.8200	0.8299	alloyed
		0.8300	0.8999	Reserved
		0.9000	0.9999	Special grades of cast iron
		0.9000	0.9199	unalloyed
		0.9200	0.9299	alloyed Cr
		0.9300	0.9399	alloyed Cu
		0.9400	0.9499	alloyed Mn
		0.9500	0.9599	alloyed Mo
		0.9600	0.9699	alloyed Ni
		0.9700	0.9799	alloyed Si
		0.9800	0.9899	others
		0.9900	0.9999	Reserved
	Reserved
		0.5000	0.5999	Reserved