Disc Springs: Materials

Standard Range

	Material	Ck 75	50 Cr V4	X12CrNI 177	X7CrNIAl 177	X35CrMo17	X22CrMoV 121
	DIN ref. no.	1.1248	1.8159	1.4310	1.4568	1.4122	1.4923
	Carbon (C)	0.7-0.8	0.47-0.55	≤0.12	≤0.09	0.35	0.2
	Silicon (Si)	0.15-0.35	0.15-0.40	≤1.5	≤1	≤1	0.3
	Manganese (Mn)	0.6-0.8	0.7-1.1	≤2	≤1	≤1	0.6
	Phosphorus (P) max.	0.035	0.035	-	-	0.03	0.035
	Sulphur (S) max.	0.035	0.035	-	-	0.03	0.035
	Aluminium (Al)	-	-	-	0.75-1.5	-	-
	Chrome (Cr)	-	0.9-1.2	16-18	16-18	16.5	12
	Nickel (Ni)	-	-	6-9	6.5-7.75	-	0.6
	Vanadium (V)	-	0.1-0.2	-	-	-	0.3
	Molybdenum (Mo)	-	-	-	-	1.15	1
E Mod. (N/mm²)		206,000	206,000	190,000	195,000	206,000	206,000
Temperature °C		-10/ +100	-40/ +200	-200/ +200	-200/ +200	-40/ +350	-40/ +450

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Valley Spring Co Ltd
Pottery Lane East
Chesterfield, Derbyshire
United Kingdom S41 9BH

Valley Spring Company: Chesterfield Derbyshire

Tel: +44 (0)1246 451981
Fax: +44 (0)1246 454327
info@valleyspring.com

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