Mechanical Properties
Alloy No
Temper Grade
Designation
Tensile Test
Bend Test
Hardness Test
Thickness (mm)
Tensile Strength (N/mm2)
Elongation (%)
Thickness (mm)
Bend Angle
Inside Radius
Thickness (mm)
Vickers Hardness
C1220
O
C1220P-O
0.3-30
min 195
min 35
max 2
180o
Flat on itself
-
-
C1220R-O
0.3-2.5
1/4H
C1220P-1/4H
0.3-30
215-275
min 25
max 2
180o
Thickness x 0.5
min 0.3
55-100
C1220R-1/4H
0.3-2.5
1/2H
C1220P-1/2H
0.3-20
245-315
min 15
max 2
180o
Thickness x 1.0
min 0.3
75-120
C1220R-1/2H
0.3-2.5
H
C1220P-H
0.3-10
min 275
-
max 2
180o
Thickness x 1.5
min 0.3
min 80
C1220R-H
0.3-2.5
C2600
O
C2600P-O
0.3-1
min 275
40
2
180o
Flat on itself
-
-
1-30
min 275
50
C2600R-O
0.3-1
min 275
40
1-2.5
min 275
50
1/4H
C2600P-1/4H
0.3-30
325-410
35
2
180o
Thickness x 0.5
min 0.3
75-125
C2600R-1/4H
0.3-2.5
1/2H
C2600P-1/2H
0.3-20
355-440
28
2
180o
Thickness x 1.0
min 0.3
85-145
C2600R-1/2H
0.3-2.5
H
C2600P-H
0.3-10
410-540
-
2
180o
Thickness x 1.5
min 0.3
105-175
C2600R-H
0.3-2.5
EH
C2600P-EH
0.3-10
-
-
-
-
-
min 0.3
min 145
C2600R-EH
0.3-2.5
C2680
O
C2680P-O
0.3-1
min 275
min 40
max 2
180o
Flat on itself
-
-
1-30
min 275
min 50
C2680R-O
0.3-1
min 275
min 40
1-2.5
min 275
min 50
1/4H
C2680P-1/4H
0.3-30
325-410
min 35
max 2
180o
Thickness x 0.5
min 0.3
75-125
C2680R-1/4H
0.3-2.5
1/2H
C2680P-1/2H
0.3-20
355-440
min 28
max 2
180o
Thickness x 1.0
min 0.3
85-145
C2680R-1/2H
0.3-2.5
H
C2680P-H
0.3-10
410-540
-
max 2
180o
Thickness x 1.5
min 0.3
105-175
C2680R-H
0.3-2.5
EH
C2680P-EH
0.3-10
min 520
-
max 2
180o
-
min 0.3
min 145
C2680R-EH
0.3-2.5
C2801
O
C2801P-O
0.3-1
min 325
min 35
max 2
180o
Thickness x 1.0
-
-
1-30
min 325
min 40
C2801R-O
0.3-1
min 325
min 35
1-2.5
min 325
min 40
1/4H
C2801P-1/4H
0.3-30
325-410
min 25
max 2
180o
Thickness x 1.5
min 0.3
85-145
C2801R-1/4H
0.3-2.5
1/2H
C2801P-1/2H
0.3-20
355-440
min 15
max 2
180o
Thickness x 1.5
min 0.3
105-160
C2801R-1/2H
0.3-2.5
H
C2801P-H
0.3-10
min 470
-
max 2
180o
Thickness x 1.0
min 0.3
min 130
C2801R-H
0.3-2.5
C5111
O
C5111P-O
C5111R-O
min 0.2
max 2.5
min 295
min 38
max 1.6
180o
or W
Flat on itself
-
-
1/4H
C5111P-1/4H
C5111R-1/4H
min 0.2
max 2.5
345-440
min 25
max 1.6
180o
or W
Thickness x 0.5
min 0.15
80-150
1/2H
C5111P-1/2H
C5111R-1/2H
min 0.2
max 2.5
410-510
min 12
max 1.6
180o
or W
Thickness x 1.0
min 0.15
120-180
H
C5111P-H
C5111R-H
min 0.2
max 2.5
490-590
min 7
max 1.6
180o
or W
Thickness x 2.0
min 0.15
150-200
EH
C5111P-EH
C5111R-EH
min 0.2
max 2.5
max 570
min 3
-
-
-
min 0.15
min 170
C5102
O
C5102P-O
C5102R-O
min 0.2
max 2.5
305
min 40
max 1.6
180o
Flat on itself
-
-
1/4H
C5102P-1/4H
C5102R-1/4H
min 0.2
max 2.5
375-470
min 28
max 1.6
180o
or W
Thickness x 0.5
min 0.15
90-160
1/2H
C5102P-1/2H
C5102R-1/2H
min 0.2
max 2.5
470-570
min 15
max 1.6
180o
or W
Thickness x 1.0
min 0.15
130-190
H
C5102P-H
C5102R-H
min 0.2
max 2.5
570-665
min 7
max 1.6
180o
or W
Thickness x 2.0
min 0.15
170-220
EH
C5102P-EH
C5102R-EH
min 0.2
max 2.5
max 620
min 4
-
-
-
min 0.15
min 190
C5191
O
C5191P-O
C5191R-O
min 0.2
max 2.5
315
min 42
max 1.6
180o
Thickness x 0.5
-
-
1/4H
C5191P-1/4H
C5191R-1/4H
min 0.2
max 2.5
390-510
min 35
max 1.6
180o
or W
Thickness x 1.0
min 0.15
100-160
1/2H
C5191P-1/2H
C5191R-1/2H
min 0.2
max 2.5
490-610
min 20
max 1.6
180o
or W
Thickness x 1.0
min 0.15
150-205
H
C5191P-H
C5191R-H
min 0.2
max 2.5
590-685
min 8
max 1.6
180o
or W
Thickness x 2.0
min 0.15
180-230
EH
C5191P-EH
C5191R-EH
min 0.2
max 2.5
max 635
min 5
-
-
-
min 0.15
min 200
C5212
O
C5212P-
C5212R-
min 0.2
max 2.5
345
min 45
max 1.6
180o
Thickness x 0.5
-
-
1/4H
C5212P-
C5212R-
min 0.2
max 2.5
390-510
min 40
max 1.6
180o
or W
Thickness x 1.0
min 0.15
100-160
1/2H
C5212P-
C5212R-
min 0.2
max 2.5
490-610
min 30
max 1.6
180o
or W
Thickness x 1.5
min 0.15
150-205
H
C5212P-
C5212R-
min 0.2
max 2.5
590-705
min 12
max 1.6
180o
or W
Thickness x 3.0
min 0.15
180-235
EH
C5212P-
C5212R-
min 0.2
max 2.5
max 685
min 5
-
-
-
min 0.15
min 210
 
Alloy No
Temper Grade
Designation
Tensile Test
Bend Test
Elastic limit test of spring
Hardness Test
Thickness (mm)
Tensile Strength (N/mm2)
Elongation (%)
Thickness (mm)
Bend Angle
Inside Radius
Thickness (mm)
Elastic limit of spring (kb0.1) (N/mm2)
Thickness (mm)
Vickers Hardness
C5210
1/2H
C5210P-1/2H
C5210R-1/2H
min 0.2
470-610
min 7
max 1.6
180o or W
Thickness x 1.0
min 0.2
max 1.6
min 245
min 0.15
140-205
H
C5210P-H
C5210R-H
min 0.2
590-705
min 20
max 1.6
180o or W
Thickness x 1.5
min 0.2
max 1.6
min 390
min 0.15
185-235
EH
C5210P-EH
C5210R-EH
min 0.2
685-785
min 11
max 1.6
180o or W
Thickness x 3.0
min 0.2
max 1.6
min 460
min 0.15
210-260
SH
C5210P-SH
C5210R-SH
min 0.2
735-835
min 9
-
-
-
min 0.2
max 1.6
min 510
min 0.15
230-270
 

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