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Compression Springs

Compression Springs

Compression springs are coiled and usually closed at both ends. These simple shapes possess the widest array of applications.

Application: key switch spring, hydraulic spring, valve spring, valve spring, oil seal spring, battery spring
Production range：Material wire diameter 0.08mm (0.0031") ~ 10.0mm (0.393")
Common Spring Material Preferred Wire Diameters

TYPE OF END FINISHES

  • Closed End not Ground
  • Closed Ends and Ground
  • Open End Not Ground

  • Closed End not Ground

  • Closed Ends and Ground

  • Open End Not Ground

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Common Spring Material

Swipe Left To Know More
Material Symbol JIS NO. Applications
Normal
use		 Well-
conductive		 Corrosion-
resistant		 Heat-
resistant		 Fatigue-
resistant
Spring Steel SUP JIS G 4801 O        
Hard Drawn Wire SWB
SWC		 JIS G 3521 O        
Music Wire SWP-A
SWP-B		 JIS G 3522 O       O
Stainless Steel Wire SUS-304 JIS G 4314 O   O O  
SUS-316     O O  
SUS-631 J1     O O O
Nickel-plated Steel Wire SW-ND-C JIS G 4314   O      
Phosphor Bronze Wires C5191W-H JIS H 3270   O      
Oil Tempered Chromium Silicon Alloy Steel SWOSC-V JIS G 3561       O O
Oil Tempered Wire for Mechanical Springs SWOSC-B JIS G 3560 O       O
Carbon Tool Steel SK JIS G 4401 O        
Carbon Steels for Machine Structural Use S-C JIS G 4501 O        
Berylliumery Wire C1720W-H JIS H 3270   O O O O
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Preferred Wire Diameters (Metric size)

Material size
(mm)		 SWC
Hard Drawn wire		 SWP
Music wire		 SUS-304
Stainless steel wire		 SW-ND-C
Nickel-plated
Steel wire
8.00
O   O  
7.00 O   O  
6.50 O O O  
6.00 O O O  
5.50 O O O  
5.00 O O O  
4.50
O O O  
4.20 O O O  
4.00
O O O  
3.80
O O O  
3.50 O O O  
3.20 O O O  
3.00 O O O  
2.80 O O O  
2.60 O O O  
2.50 O O O  
2.40 O O O  
2.30
O O O  
2.20 O O O  
2.00 O O O  
1.80 O O O  
1.70 O O O  
1.60 O O O  
1.50 O O O  
1.40 O O O  
1.30 O O O  
1.20 O O O O
1.10 O O O  
1.00 O O O O
0.90 O O O O
0.85 O O O  
0.80 O O O O
0.75 O O O  
0.70
O O O O
0.65 O O O O
0.60 O O O O
0.55 O O O O
0.50 O O O O
0.45 O O O O
0.40 O O O O
0.38 O O O  
0.35 O O O O
0.32 O O O  
0.30 O O O O
0.28 O O O  
0.26 O O O  
0.25 O O O  
0.23 O O O  
0.21 O O O  
0.20 O O O  
0.18   O O  
0.16   O O  
0.15   O O  
0.14   O O  
0.13   O O  
0.12   O O  
0.11   O O  
0.10   O O  
×