Rolling Shutter Spring Steel Strips


Our hardened and tempered steel strips are used in manufacturing high-performance shutter springs for roller shutters. With uniform hardness, tight tolerances, and smooth edges, our spring steel ensures consistent torque, smooth shutter operation, and extended service life. Trusted globally, Sodani Steel & Strips Pvt.ltd. delivers premium shutter spring steel for reliable roller shutter performance.


Specifications


Surface Finish Furnace Grey, Bright, Very Bright & Blue
Edges Sheared Edges & Both Side Edge Round (2ER)
Shutter spring strip Hardness 45 - 48 HRC
Delivery form Coils
Coil Weight 50 To 100 Kg
Packaging Coils Lightly Oiled & Wrapped In Protective/ Seaworthy Packing. Then placed in wooden boxes or on pallets. (Can be customised for individual demands.)

Steel Grades


Carbon Steel Strips - for standard applications


Grades
Carbon %
Silicon %
Manganese %
Sulphur %
(Max)
Phosphorous %
(Max)
Chromium %
Nickel %
C-65
0.60-0.70
0.15-0.35
0.60-0.90
0.05
0.04
C-75
0.70-0.80
0.15-0.35
0.60-0.90
0.05
0.04
C-80
0.75-0.85
0.15-0.30
0.60-0.90
0.05
0.04

International Cross Reference


USA
Germany
Great Britain
France
Euronorm
Italy
Japan
SAE/AISI
DIN
BS
NFA
EN
UNI
JIS
1065
CK 67
EN 42F
XC 68
C 67S
1075
C 75
EN 42J
XC 75
C 75S
C 75
1080
C 80
CS 80

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