|
Type
|
Applied Diameter
(mm)
|
Remark
|
|
Oil Tempered Spring Wire
|
0.40-4.00
|
Mainly for dead load.
|
Reference: ISO/CD 8458-3 (2nd Edition)
|
Tensile Strength
|
Dead Load
|
Medium Fatigue
|
High Fatigue
|
|
Low Tensile Strength
|
FDC
|
TDC
|
VDC
|
Chemical Composition (%)
Reference: ISO/CD 8458-3 (2nd Edition)
|
Grade
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
V
|
Cu
|
|
FDC
|
0.53-0.88
|
0.10-0.35
|
0.50-1.20
|
≤0.030
|
≤0.030
|
---
|
---
|
≤0.20
|
|
TDC
|
0.53-0.88
|
0.10-0.35
|
0.50-1.20
|
≤0.020
|
≤0.025
|
---
|
---
|
≤0.12
|
|
VDC
|
0.60-0.75
|
0.15-0.30
|
0.50-1.00
|
≤0.020
|
≤0.025
|
---
|
---
|
≤0.12
|
Reference: JIS G 3560-1994
|
Code
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Cu
|
|
SWO-A
|
0.53-0.88
|
0.10-0.35
|
0.30-1.20
|
≤0.040
|
≤0.040
|
--
|
--
|
|
SWO-B
|
0.53-0.88
|
0.10-0.35
|
0.30-1.20
|
≤0.030
|
≤0.030
|
--
|
--
|
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