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High-carbon steel:

Annealed (+LC)

Classification of symbols

Numerical classification

European Standard (EN) Chemical Composition %
C Si Mn Max. P Max. S Cr Mo V Ni
C10E 1.1121 EN 10132-2 0.07 - 0.13 max. 0.40 0.30 - 0.60 0.035 0.035 max. 0.40      
C15E 1.1141 EN 10132-2 0.12 - 018 max. 0.40 0.30 - 0.60 0.035 0.035 max. 0.40      
16MnCr5 1.7131 EN 10132-2 0.14 - 0.19 max. 0.40 1.00 - 1.30 0.035 0.035 0.80 - 1.10      
C22E 1.1151 EN 10132-3 0.17 - 0.24 max. 0.40 0.40 - 0.70 0.035 0.035 max. 0.40 max. 0.10   max. 0.40
C35E 1.1181 EN 10132-3 0.32 - 0.39 max. 0.40 0.50-0.80 0.035 0.035 max. 0.40 max. 0.10   max. 0.40
C45E 1.1191 EN 10132-3 0.42 - 0.50 max. 0.40 0.50-0.80 0.035 0.035 max. 0.40 max. 0.10   max. 0.40
25CrMo4 1.7218 EN 10132-3 0.22 - 0.29 max. 0.40 0.60-0.90 0.035 0.035 0.90-1.20 0.15-0.30   -
42CrMo4 1.7225 EN 10132-3 0.38 - 0.45 max. 0.40 0.60-0.90 0.035 0.035 0.90-1.20 0.15-0.30   -
C55S 1.1204 EN 10132-4 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
C60S 1.1211 EN 10132-4 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
C67S 1.1231 EN 10132-4 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
C75S 1.1248 EN 10132-4 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
C90S 1.1217 EN 10132-4 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
C100S 1.1274 EN 10132-4 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
51CrV4 1.8159 EN 10132-4 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
80CrV2 1.2235 EN 10132-4 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
Classification of symbols Numerical European Standard (EN) Approximate international equivalents
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 10132-2:2000

  • The requirements regarding roughness can be agreed when requesting the quote or placing the order.
  • Cold-rolled strips should have a bright surface finish, as obtained during rolling or annealing in a controlled atmosphere.

 

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
<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 Metalle Schmidt GmbH1) 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
>= < A B A B A B
0.1 0.4 ± 0.075 2) ± 0.075 2) ± 0.075 2) ± 0,10 2) ± 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 ± 0.085 3) ± 0.09 3) ± 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 ± 0.13 5) ± 0.15 5) ± 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 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.
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