Tempered steels â€“ BILSTEIN CEE

DIN EN 10132-3

Tempered steels

There are many uses for tempered steels, ranging from links for automotive timing chains to complex shapes with high strength requirements, such as steel toe caps for industrial boots. Parts undergo punching, fine-blanking, bending and cold forming before acquiring the necessary mechanical properties during heat treatment. Cold-rolled tempered steel strips produced by the BILSTEIN GROUP are optimized according to their final application, through the selection of specific base materials and tailoring the cold-forming process.

Microstructures and mechanical properties are manufactured to safeguard outstanding cutting and formability, while at the same time delivering first-rate heat treatment performance, in terms of both mechanics and costs.

Applications:
Chain links, seat-belt components, toe caps, engine elements

PRODUCTS

Types of steel

Overview

Chemical properties

Mechanical properties

Short name	Material number	Thickness in mm^a	Width in mm^a	Thickness in inch^a	Width in inch^a	Coil	Spool^a	Bar^a	MA	MB^a	RN^a	RL	RM^a	RR^a
C22E	1.1151	0.04 - 12	8 - 650	0.002 - 0.468	0.312 - 25.35	•	•	•	•	•	•	•	•	•
C30E	1.1178	0.04 - 12	8 - 650	0.002 - 0.468	0.312 - 25.35	•	•	•	•	•	•	•	•	•
C35E	1.1181	0.04 - 12	8 - 650	0.002 - 0.468	0.312 - 25.35	•	•	•	•	•	•	•	•	•
C40E	1.1186	0.04 - 12	8 - 650	0.002 - 0.468	0.312 - 25.35	•	•	•	•	•	•	•	•	•
C45E	1.1191	0.04 - 8	8 - 650	0.002 - 0.312	0.312 - 25.35	•	•	•	•	•	•	•	•	•
C50E	1.1206	0.04 - 8	8 - 650	0.002 - 0.312	0.312 - 25.35	•	•	•	•	•	•	•	•	•
C55E	1.1203	0.04 - 8	8 - 650	0.002 - 0.312	0.312 - 25.35	•	•	•	•	•	•	•	•	•
C60E	1.1221	0.04 - 8	8 - 650	0.002 - 0.312	0.312 - 25.35	•	•	•	•	•	•	•	•	•
25Mn4	1.1177	0.04 - 8	8 - 650	0.002 - 0.312	0.312 - 25.35	•	•	•	•	•	•	•	•	•
25CrMo4	1.7218	0.04 - 8	8 - 650	0.002 - 0.312	0.312 - 25.35	•	•	•	•	•	•	•	•	•
34CrMo4	1.7220	0.04 - 8	8 - 650	0.002 - 0.312	0.312 - 25.35	•	•	•	•	•	•	•	•	•
42CrMo4	1.7225	0.04 - 8	8 - 650	0.002 - 0.312	0.312 - 25.35	•	•	•	•	•	•	•	•	•

a = measured at the cross section

		Mass-share in %
Short name	Material number	C	Si max	Mn	P max	S max	Cr	Mo	Ni max
C22E	1.1151	0.17 - 0.24	0.40	0.40 - 0.70	0.035	0.035	max. 0.4	max. 0.1	0.40
C30E	1.1178	0.27 - 0.34	0.40	0.50 - 0.80	0.035	0.035	max. 0.4	max. 0.1	0.40
C35E	1.1181	0.32 - 0.39	0.40	0.50 - 0.80	0.035	0.036	max. 0.4	max. 0.1	0.40
C40E	1.1186	0.37 - 0.44	0.40	0.50 - 0.80	0.035	0.035	max. 0.4	max. 0.1	0.40
C45E	1.1191	0.42 - 0.50	0.40	0.50 - 0.80	0.035	0.035	max. 0.4	max. 0.1	0.40
C50E	1.1206	0.47 - 0.55	0.40	0.60 - 0.90	0.035	0.035	max. 0.4	max. 0.1	0.40
C55E	1.1203	0.52 - 0.60	0.40	0.60 - 0.90	0.035	0.035	max. 0.4	max. 0.1	0.40
C60E	1.1221	0.57 - 0.65	0.40	0.60 - 0.90	0.035	0.035	max. 0.4	max. 0.1	0.40
25Mn4	1.1177	0.23 - 0.28	0.40	0.95 - 1.15	0.035	0.035	max. 0.4	max. 0.1	0.40
25CrMo4	1.7218	0.22 - 0.29	0.40	0.60 - 0.90	0.035	0.035	0.9 - 1.2	0.15 - 0.30
34CrMo4	1.7220	0.30 - 0.37	0.40	0.60 - 0.90	0.035	0.035	0.90 - 1.20	0.15 - 0.30
42CrMo4	1.7225	0.38 - 0.45	0.40	0.60 - 0.90	0.036	0.035	0.90 - 1.20	0.15 - 0.30

Short name	Material number	Condition	Rp _0,2 MPa max	Rm MPa	A₈₀% min	HV min	HV max
C22E	1.1151	+A ; +LC	400	500	22		155
		+CR		900			265
C30E	1.1178	+A ; +LC	420	520	20		165
		+CR		920			270
C35E	1.1181	+A ; +LC	430	540	19		170
		+CR		930			275
C40E	1.1186	+A ; +LC	440	550	18		170
		+CR		970			280
C45E	1.1191	+A ; +LC	455	570	18		180
		+CR		1020			290
C50E	1.1206	+A ; +LC	465	580	17		180
		+CR		1050			295
		+QT		1050 - 1650		325	505
C55E	1.1203	+A ; +LC	480	600	17		185
		+CR		1070			300
		+QT		1100 - 1700		340	520
C60E	1.1221	+A ; +LC	495	620	17		195
		+CR		1100			305
		+QT		1150 - 1750		345	530
25Mn4	1.1177	+A ; +LC	460	590	20		180
25CrMo4	1.7218	+A ; +LC	440	580	19		175
		+QT		990 - 1400		305	435
34CrMo4	1.7220	+A ; +LC	460	600	16		185
		+QT		1020 - 1500		315	465
42CrMo4	1.7225	+A ; +LC	480	620	15		195
		+QT		1100 - 1600		340	490