Case-hardened steels

Usage

When either hot- or cold-rolled, casehardened steels are predominantly used for transmission parts (Plate springs, clutch disks, 16MnCr5 view image). The hot-rolled steels offer good punching quality and formability. After case-hardening, the finished components have a very strong core, whereas the surface is characterized by good wear-resistance.

As the melting and hot-rolling conditions have an effect on further treatment at the customer, the customer should always state the intended use when placing an order.

Standards

Europe	Material no.	DE	FR	IT	GB	ES	US	JP	FK¹⁾
DIN EN ISO 683-3	DIN 17210²⁾	NAF 35-551	UNI 8788	BS 970-1	UNE 36013	SAE J 403/ J 1249/ J 404	JIS G 4051
C10E	1.1121	Ck 10	XC 10	C 10	045 M 10	C 10 k	1010	S 10 C	A
C15E	1.1141	Ck 15	-	C 15	-	C 16 k	1015	S 15 C	A
C16E	1.1148	-	XC 18	-	080 M 15	-	-	-	A
16MnCr5	1.7131	16 MnCr 5	16 MC 5	16 MnCr 5	590 M 17	16 Mn Cr 5	5115	-	B
20MnCr5	1.7147	20 MnCr 5	20 MC 5	20 MnCr 5	-	-	5120	S MnC 21 H	B

Chemical composition in percent by weight [%] (Heat analysis)

Grade	C	Si	Mn	P	S	Cr	Cu	Mo	Ni
		max.		max.	max.		max.	max.	max.
C10E	0.07 - 0.13	0.40	0.30 - 0.60	0.025	0.035	≤ 0.40	0.30	0.10	0.40
C15E	0.12 - 0.18	0.40	0.30 - 0.60	0.025	0.035	≤ 0.40	0.30	0.10	0.40
C16E	0.12 - 0.18	0.40	0.60 - 0.90	0.025	0.035	≤ 0.40	0.30	0.10	0.40
16MnCr5	0.14 - 0.19	0.15 - 0.40	1.00 - 1.30	0.025	0.035	0.80 - 1.10	0.40	-	-
20MnCr5	0.17 - 0.22	0.15 - 0.40	1.10 - 1.40	0.025	0.035	1.00 - 1.30	0.40	-	-

Condition of delivery, scope of testing and certificate

The provisions of EN 10084, chapters 6.4.1 und 7 shall apply for delivery and inspection.
All case-hardened steels are delivered in a hot-rolled and untreated condition.

Certificates according to DIN EN 10204 can be supplied as follows: IT, DUN, FAX, e-mail, paper.