High-carbon steel strip: Annealed (+LC)

Chemical Composition
Equivalents
Mechanical properties
Finishes
Tolerances

Classification of symbols	Numerical classification	European Standard (EN)	Chemical Composition %
Classification of symbols	Numerical classification	European Standard (EN)	C	Si	Mn	Max. P	Max. S	Cr	Mo	V	Ni	Cu	Cr + Mo +Ni máx./Max
C10E	1.1121	EN 10132	0.07 - 0.13	max. 0.40	0.30 - 0.60	0.025	0.035	max. 0.40	max. 0,10	-	max. 0,40	0,30	-
C15E	1.1141	EN 10132	0.12 - 018	max. 0.40	0.30 - 0.60	0.025	0.035	max. 0.40	max. 0,10	-	max. 0,40	0,30	-
16MnCr5	1.7131	EN 10132	0.14 - 0.19	max. 0.40	1.00 - 1.30	0.025	0.035	0.80 - 1.10	-	-		0,40	-
C22E	1.1151	EN 10132	0.17 - 0.24	max. 0.40	0.40 - 0.70	0.025	0.035	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
C35E	1.1181	EN 10132	0.32 - 0.39	max. 0.40	0.50-0.80	0.025	0.035	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
C45E	1.1191	EN 10132	0.42 - 0.50	max. 0.40	0.50-0.80	0.025	0.035	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
25CrMo4	1.7218	EN 10132	0.22 - 0.29	max. 0.40	0.60-0.90	0.025	0.035	0.90-1.20	0.15-0.30	-	-	0,40	-
42CrMo4	1.7225	EN 10132	0.38 - 0.45	max. 0.40	0.60-0.90	0.025	0.035	0.90-1.20	0.15-0.30	-	-	0,40	-
C55S	1.1204	EN 10132	0.52 - 0.60	0.15 - 0.35	0.60 - 0.90	0.025	0.025	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
C60S	1.1211	EN 10132	0.57 - 0.65	0.15 - 0.35	0.60 - 0.90	0.025	0.025	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
C67S	1.1231	EN 10132	0.65 - 0.73	0.15 - 0.35	0.60 - 0.90	0.025	0.025	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
C75S	1.1248	EN 10132	0.70 - 0.80	0.15 - 0.35	0.60 - 0.90	0.025	0.025	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
C90S	1.1217	EN 10132	0.85 - 0.95	0.15 - 0.35	0.40 - 0.70	0.025	0.025	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
C100S	1.1274	EN 10132	0.95 - 1.05	0.15 - 0.35	0.30 - 0.60	0.025	0.025	max. 0.40	max. 0.10	-	max. 0.40	0,30	0,63
51CrV4	1.8159	EN 10132	0.47 - 0.55	max. 0.40	0.70 - 1.10	0.025	0.025	0.90 - 1.20	max. 0.10	0.10 - 0.25	max. 0.40	0,40	-
80CrV2	1.2235	EN 10132	0.75 - 0.85	0.15 - 0.35	0.30 - 0.50	0.025	0.025	0.40 - 0.60	max. 0.10	0.15 - 0.25	max. 0.40	0,40	-

ANNEALED STRIP: HIGH CARBON STEEL

MECHANICAL CHARACTERISTICS OF ANNEALED STEEL STRIPS

At VINCO we offer you a wide selection of annealed steel strips with high carbon content so that you can adapt the order to your needs. The annealing process consists of heating the steel strip to a certain temperature and allowing it to cool to room temperature in order to soften the material and eliminate tensions. In addition, depending on the amount of carbon in the steel strip, the mechanical properties and characteristics will vary. The higher the carbon content, the higher the hardness and strength of the strip. The density of high carbon steel strip is 7.85 kg/dm³ regardless of the format in which the product is supplied.

The mechanical characteristics and technical conditions of annealed strip are subject to EN 10132-2 (case hardening steel), EN 10132-3 (quenching and tempering steel) and EN 10132-4 (technical delivery conditions), which apply to cold-rolled strip for heat treatment. In this respect, the mechanical properties and hardness requirements as well as the Rockwell hardness values of spring steels are determined. These characteristics are applied to the supply of annealed and skin-passed strip: the former softens and relieves the stresses of the steel, improving its ductility, and the skin-passed reduces the thickness and improves the roughness of the strip. You can consult all these metrics in the mechanical characteristics section.

The finishing of annealed strip is governed by EN 10132-2:2000 which covers alloyed and non-alloyed cold rolled strip for general applications. The cold rolling process leaves a bright surface finish on the material. The roughness, on the other hand, is agreed at the time of the order, adapting each strip to the needs of our customers.

high-carbon-annealed-carbon-content-strapping-LC

TOLERANCES IN THICKNESS, WIDTH, LENGTH AND DEFLECTION

Thickness tolerances according to Standard EN 10140:2006 that applies to cold rolled strip in coils or strips obtained from precision strip of rolling width.

Width tolerances are indicated for strips with sheared edges. The standard shear tolerances for VINCO and the tolerances for nominal widths according to EN 10140 are listed here.

With regard to the length tolerances, three nominal length bands are detailed for which the most restricted tolerances that can be closed in commercial agreement are indicated, as well as the positive tolerances with respect to the nominal length detailed in the EN 10140 Standard.

Deflection tolerances refer to the most restricted edge bending tolerances feasible under commercial agreement, as well as to the tolerances according to EN 10140 for Class A (Normal) and Class B (Reduced).

The range of tolerances with respect to the longitudinal corrugation or flatness of strip strips in the rolling direction shall be less than or equal to a maximum of 10 mm out of 1000. This flatness is determined according to the rolling direction of the strip.

All specifications referring to tolerances can be found in the corresponding section of the product sheet. For any other questions, please do not hesitate to contact our team of experts at (+34) 94 412 33 99 or write to us at info@vinco.es.

Classification of symbols	Numerical	European Standard (EN)	Approximate international equivalents
Classification of symbols	Numerical	European Standard (EN)	US		Japan (JIS)		China (GB)

C10E	1.1121	EN 10132-2
C15E	1.1141	EN 10132-2	SAE 1015	1015	S15C	G4051	15	GB 3522
16MnCr5	1.7131	EN 10132-2	AISI 5115	5115	-	-	16MnCr	-
C22E	1.1151	EN 10132-3
C35E	1.1181	EN 10132-3
C45E	1.1191	EN 10132-3	1045	A682/684	S45C	G4051	45	GB 3522
25CrMo4	1.7218	EN 10132-3	SAE 4130	4130	SCM 420	G 4105	30CrMo	-
42CrMo4	1.7225	EN 10132-3	SAE 4140	4140	SCM 440	G 4105	42CrMo	-
C55S	1.1204	EN 10132-4
C60S	1.1211	EN 10132-4
C67S	1.1231	EN 10132-4	1065	A682/684	S65C-CSP	G4802	70	GB/T 1222
C75S	1.1248	EN 10132-4	1074	A682/684	-	-	-	-
C90S	1.1217	EN 10132-4	-	-	-	-	-	-
C100S	1.1274	EN 10132-4	1095	A682/684	SK4-CSP	G4802	-	-
51CrV4	1.8159	EN 10132-4	6150	A505/506	SUP 10	G4802	50CrVA	GB/T 1222
80CrV2	1.2235	EN 10132-4

Classification of symbols	Numerical	European Standard (EN)	Mechanical properties and hardness requirements Delivery condition annealed and skin-passed (+LC)				Rockwell hardness values¹⁾ of steel for springs Annealed and skin-passed (+LC)
			Rp0.2 N/mm² max	Rm N/mm² max.	A₈₀ % min.	Max. HV	Max. HRB.
C10E	1.1121	EN 10132	345	430	26	135	-
C15E	1.1141	EN 10132	360	450	25	140	-
16MnCr5	1.7131	EN 10132	420	550	21	170	-
C22E	1.1151	EN 10132	400	500	22	155	78
C35E	1.1181	EN 10132	430	540	19	170	86
C45E	1.1191	EN 10132	455	570	18	180	88
25CrMo4	1.7218	EN 10132	440	580	19	175	87
42CrMo4	1.7225	EN 10132	480	620	15	195	90
C55S	1.1204	EN 10132	480	600	17	185	90
C60S	1.1211	EN 10132	495	620	17	195	91
C67S	1.1231	EN 10132	510	640	16	200	92
C75S	1.1248	EN 10132	510	640	15	200	93
C90S	1.1217	EN 10132	545	680	14	215	94
C100S	1.1274	EN 10132	550	690	13	220	95
51CrV4	1.8159	EN 10132	550	700	13	220	94
80CrV2	1.2235	EN 10132	580	720	12	225	95

1)Approximate values.

Note: it is possible to specify the hardness values or the tensile strength values, but not both. If neither of the two values is specified, the tensile strength value is calculated.
The hardness/tensile strength specification must fall within a range of 150 N/mm² or 50 HV, unless stated otherwise in the commercial agreement.

EN 10132-2:2021

Surface finish can be "rough" (RR), "matte" (RM), "smooth" (RL).

Products with MA and MB surface appearance are generally supplied with RL surface finish. If "rough" or "matte" surface finish is requested, the corresponding symbol must be indicated in the designation.

Roughness requirements must be agreed upon at the time of request for quotation or order.
Cold-rolled strip should have a final bright surface finish, as obtained during rolling or annealing in a controlled atmosphere.

Surface appearance			Special surface finish
Symbol	Characteristics	Field of application
Symbol	Characteristics	Field of application		MA	Bright, clean, metallic surface; pitting grooves and scratches are not allowed.	All thicknesses and supply conditions.	RR, RM, RL
MB	Bright, metallic, clean surface; pitting grooves and scratches are acceptable as long as the smooth, uniform appearance is not substantially affected to the naked eye.	Thicknesses ≤ 2.0 mm and supply conditions +LC +CR	RM, RL

The different surface finishes for the +LC and +CR conditions are as follows:

Finished	Roughness
Rough	RR	Ra ≥ 1.5 µm
Rough	RR	Ra ≥ 1.5 µm	Matte	RM	0.6 µm > Ra ≤ 1.8 µm
Normal	RL	Ra ≤ 0.6 µm

THICKNESS TOLERANCES

A) Specified thickness tolerances for cold rolled strip and strip obtained strapping wide precision rolling w.

According to the EN 10140:2006 Standard.

Nominal Thickness t		Thickness tolerances according to EN 10140 for nominal widths w of
Nominal Thickness t		<125			≥ 125 and <600
>	≤	A normal	B fine	C precision	A normal	B fine	C precision
-	0.10	± 0.008	± 0.006	± 0.004	± 0.010	± 0.008	± 0.005
0.10	0.15	±0.010	± 0.008	± 0.005	± 0.015	± 0.012	± 0.010
0.15	0.25	±0.015	± 0.012	± 0.008	± 0.020	± 0.015	± 0.010
0.25	0.40	± 0.020	± 0.015	± 0.010	± 0.025	± 0.020	± 0.012
0.40	0.60	± 0.025	± 0.020	± 0.012	± 0.030	± 0.025	± 0.015
0.60	1.00	± 0.030	± 0.025	± 0.015	± 0.035	± 0.030	± 0.020
1.00	1.50	± 0.035	± 0.030	± 0.020	± 0.040	± 0.035	± 0.025
1.50	2.50	± 0.045	± 0.035	± 0.025	± 0.050	± 0.040	± 0.030
2.50	4.00	± 0.050	± 0.040	± 0.030	± 0.060	± 0.050	± 0.035
4.00	6.00	± 0.060	± 0.050	± 0.035	± 0.070	± 0.055	± 0.040

Sizes in mm.

WIDTH TOLERANCES

Width tolerances for strips with sheared edges		Standard slitting tolerances for VINCO¹⁾				Width tolerances according to the EN 10140 Standard for nominal widths of:
Nominal Thickness t		3-15	15-50	50-150	>150	<125		≥ 125 and <250		≥250 and <600
>=	<	3-15	15-50	50-150	>150	A	B	A	B	A	B
0.1	0.4	± 0.075²⁾	± 0.075²⁾	± 0.075²⁾	± 0,10²⁾	± 0.15	± 0.10	± 0.20	± 0.13	± 0.25	± 0.18
0.4	0.7	± 0,085	± 0,09	± 0,10	± 0,12	± 0.15	± 0.10	± 0.20	± 0.13	± 0.25	± 0.18
0.7	1.0	± 0.085³⁾	± 0.09³⁾	± 0.10 ³⁾	± 0.12 ³⁾	± 0.20	± 0.13	± 0.25	± 0.18	± 0.30	± 0.20
1.0	1.5	± 0.10 ⁴⁾	± 0.10 ⁴⁾	± 0.10 ⁴⁾	± 0.15 ⁴⁾	± 0.20	± 0.13	± 0.25	± 0.18	± 0.30	± 0.20
1.5	2.5	on request	± 0.13⁵⁾	± 0.15⁵⁾	± 0.16 ⁵⁾	± 0.25	± 0.18	± 0.30	± 0.20	± 0.35	± 0.20
2.5	2.6	on request	on request	± 0.16	± 0.175	± 0.25	± 0.18	± 0.30	± 0.20	± 0.35	± 0.25
2.6	4.1	on request	on request	± 0.16	± 0.175	± 0.30	± 0.20	± 0.35	± 0.25	± 0.40	± 0.30
4.1	6.1	on request	on request	± 0.16	± 0.175	± 0.35	± 0.25	± 0.40	± 0.30	± 0.45	± 0.35

1) Other, closer dimensional tolerances are possible under a commercial agreement

2) Including the value t= 0.4

3) Including the value t= 1

4) Including the value t= 1.5

5) Including the value t= 2.5

LENGTH TOLERANCES

Length tolerances	Closer tolerances are possible under a commercial agreement	Positive tolerance in relation to the nominal length, according to the EN 10140 Standard for the
Nominal length L	Closer tolerances are possible under a commercial agreement	Class A	Class B
L ≤ 1000	+ 2	+ 10	+ 6
1000 < L ≤ 2500	+0,002L	+ 0.01 L	+ 6
L > 2500	+0,002L	+ 0.01 L	+ 0.003 L

Sizes in mm.

EDGE CAMBER TOLERANCES

Nominal width (w)	Closer edge curve tolerances possible under a commercial agreement		Edge curve tolerances according to the EN 10140 Standard
	Maximum deviation 1000 mm
	Thickness t		Class A (Normal) (maximum deviation)	Class B (FS) (Reduced) (maximum deviation)


	t ≤ 1.20 mm	t > 1.20 mm
3 ≤ W < 6	2.50	4.00	-	-
6 < W ≤ 10	2.00	3.00	-	-
10 < W ≤ 20	1.00	1.50	5.00	2.00
20 < W < 25	1.00	1.50	5.00	2.00
25 ≤ W < 40	1.00	1.50	3.50	1.50
40 ≤ W < 125	1.00	1.50	2.50	1.25
125 ≤ W ≤ 350	1.00	1.50	2.00	1.00
350 < W < 600	-	-	2.00	1.00

Sizes in mm.

The absolute value of the tolerance can be divided within that range.

RIPPLE - LONGITUDINAL FLATNESS

The flatness tolerance of the strips in cut lengths in the direction of rolling must be a maximum of 10 mm over 1000 mm. Any other flatness requirement must be agreed when placing the order.

* The data contained in this catalogue are for information purposes only and are not under any circumstances, contractual supply conditions. Errors and omissions excepted.