Spring steel with a precisely tailored yield strength

Unparalleled elasticity

Our high-performance spring steels are used in applications requiring parts capable of reliably absorbing and re-exerting force. A good example of such applications are the spring diaphragms found in automobiles or the retractor springs in seat belt systems, which are tempered and re-rolled.

The elasticity of the spring steel plays an important role in the functionality of these dynamically highly loaded parts. It determines how much force the material is able to absorb without being permanently deformed. The yield strength represents the maximum force which the material can absorb and subsequently release while still returning to its original shape.

Perfectly tailored yield strength

Yield strength is an important parameter which we are capable of calibrating to a precise degree thanks to our experience combining chemical composition, cold rolling and heat treatment. When it comes to spring steels, we are able to manufacture various high-performance materials with yield strengths (R_p0.2) of up to 2,800 MPa (406 ksi).

Our products withstand countless millions of loading and unloading cycles over the course of their service lives. In several cases, such as those described above, these parts perform safety-related functions. Get in touch with us to discuss exactly what you need. We will manufacture a customized spring steel to perfectly meet your project requirements.

Spring steels – DIN EN 10132-2021

You have any questions concerning our steel materials or would like to send us an e-mail?

Find your contact partner Send an e-mail

	Standard				Annealed to spheroidized cementite			Annealed to spheroidized cementite-dead soft
Material No.	AISI	JIS	EN	DIN	Yield strength in MPa (max.)	Tensile strength in MPa (max.)	HBW (max.)	Yield strength in MPa (max.)	Tensile strength in MPa (max.)	HBW (max.)
1.1231	1070	SK7	C67S	Ck 67	380	580	180	330	550	171
1.1248	1075	SK6	C75S	Ck 75	400	610	189	345	570	177
1.1284			C80S		400	610	189	345	570	177
1.1269	1086	SK5	C85S	Ck 85	405	620	192	355	580	180
1.1217			C90S		420	630	195	365	590	183
1.1274	1095	SK4 SK3	C100S	Ck 101	430	640	198	380	600	186
1.1224			C125S		440	650	202	400	620	192
1.2002		SK2	125Cr2	125Cr1	450	660	205	385	640	198
1.2235			80CrV2	80CrV 2	390	600	186	345	570	177
1.5026	9255		56Si7		420	620	192	360	580	180
1.5634		SKS51	75Ni8		450	660	205	400	630	195
1.8159	6150	SUP10	51CrV4	50 CrV 4	380	580	180	330	550	171
1.8161			58CrV4	58 CrV 4	390	590	183	350	560	174
1.2003			75Cr1		420	630	195	360	580	180
1.2018			95Cr1		430	640	198	380	600	186
1.6595			68CrNiMo3-3		400	615	190	350	575	179
Other grades available upon request

	Standard				Annealed to spheroidized cementite			Annealed to spheroidized cementite-dead soft
Material No.	AISI	JIS	EN	DIN	Yield strength in ksi (max.)	Tensile strength in ksi (max.)	HBW (max.)	Yield strength in ksi (max.)	Tensile strength in ksi (max.)	HBW (max.)
1.1231	1070	SK7	C67S	Ck 67	55	84	180	48	80	171
1.1248	1075	SK6	C75S	Ck 75	58	88	189	50	83	177
1.1284			C80S		58	88	189	50	83	177
1.1269	1086	SK5	C85S	Ck 85	59	90	192	51	84	180
1.1217			C90S		61	91	195	53	86	183
1.1274	1095	SK4 SK3	C100S	Ck 101	62	93	198	55	87	186
1.1224			C125S		64	94	202	58	90	192
1.2002		SK2	125Cr2	125Cr1	65	96	205	56	93	198
1.2235			80CrV2	80CrV 2	57	87	186	50	83	177
1.5026	9255		56Si7		61	90	192	52	84	180
1.5634		SKS51	75Ni8		65	96	205	58	91	195
1.8159	6150	SUP10	51CrV4	50 CrV 4	55	84	180	48	80	171
1.8161			58CrV4	58 CrV 4	57	86	183	51	81	174
1.2003			75Cr1		61	91	195	52	84	180
1.2018			95Cr1		62	93	198	55	87	186
1.6595			68CrNiMo3-3		58	89	190	51	83	179
Other grades available upon request

Spring steel with a precisely tailored yield strength

Unparalleled elasticity

Perfectly tailored yield strength

Spring steels – DIN EN 10132-2021

You have any questions concerning our steel materials or would like to send us an e-mail?

WAELZHOLZ NEWSLETTER

International

Steel materials

Contact