Spring Steel Wire (SWRH Series): Selection Guide for High-Strength Coil Springs

SWRH-series spring steel wire is widely used in high-strength spring applications where repeatable forming and fatigue performance are required. Procurement should focus on property consistency and process compatibility.

Key Purchase Parameters

• Wire diameter and tolerance class
• Strength/hardness target range
• Surface quality and decarburization control expectations
• Spool condition for stable spring forming

Production Considerations

Spring forming lines are sensitive to variation in wire condition. Lot-to-lot consistency is often more valuable than marginal price reduction.

Bottom Line

For SWRH spring wire, clear mechanical targets and quality controls reduce setup instability and improve spring life consistency.