Compression Spring A2 Stainless Steel WireDia.=1.6mm OD=22~25mm Y Type Spring

Measure the inner diameter of the bore or housing where the spring will seat. The spring's OD should be slightly smaller than the bore ID to allow free movement without binding. For a 22 mm bore, select the 22 mm OD variant; for 24 mm or 25 mm bores, choose accordingly. Always allow a small clearance (typically 0.5–1 mm) between the spring OD and the bore wall.

Free length is the uncompressed length of the spring. Measure the available travel in your assembly and add the required compressed length. As a starting point, the free length should be at least 20–30% longer than the maximum compressed length to avoid coil bind. Choose from the 10–200 mm range available in the variant options.

This spring is designed for light-to-medium load applications. The exact load capacity depends on the specific free length and OD variant selected, as spring rate varies with these dimensions. For precise load calculations, use the spring rate (N/mm) for your chosen variant. Contact us to confirm if you need specific spring rate data for your application.

A2 (304) stainless steel offers solid corrosion resistance in most indoor, humid, and mildly wet environments. It performs well in freshwater and general workshop conditions. For highly corrosive environments such as saltwater or strong chemical exposure, A4 (316) stainless steel would be more appropriate. For typical DIY, mechanical, and light industrial use, A2 is a reliable choice.

Yes. The 22 mm, 24 mm, and 25 mm OD sizes are compatible with standard spring seats, plunger housings, and guide rods sized to match. Ensure the guide rod OD is smaller than the spring's inner diameter (ID = OD minus 2× wire diameter, approximately 18.8 mm, 20.8 mm, or 21.8 mm respectively) to allow the spring to slide freely.

For a single repair or prototype, the 1-piece or 2-piece pack is the most economical choice. If you are building a batch of assemblies or want spares on hand, the 5-piece or 10-piece packs offer better value per unit. For production runs or stocking purposes, the 20-piece pack provides the lowest per-unit cost. Select your OD and free length first, then choose the quantity that matches your project scale.

A2 stainless steel retains its mechanical properties up to approximately 300–400°C (570–750°F) for short-term exposure. For continuous high-temperature service above this range, a high-temperature alloy spring would be more suitable. For standard workshop, automotive, or household applications, these springs perform reliably within normal operating temperature ranges.