Product Info

Spring deformation occurs when material, applied load, or operating temperature exceeds safe limits. By understanding these factors, engineers can select the right spring material and design to prevent failure and extend machinery life.

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🧪 1. Spring Material
The material defines strength, elasticity, fatigue resistance, and temperature durability. Choosing the wrong material often leads to premature spring failure.

Common Materials & Considerations:
- SWP-B (High Carbon Spring Steel)
→ High tensile strength, but fatigue issues under repeated vibration
- SUS304 (Stainless Steel)
→ Excellent corrosion resistance, but deformation under continuous high load
- Inconel / Elgiloy
→ Suitable for high-temperature use, but higher cost

Typical Failures:
- Mild steel in humid environments → corrosion and loss of spring force
- Stainless steel under excessive load → permanent deformation

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🧲 2. Applied Load
Springs must operate within their elastic range. If load exceeds the yield strength, the spring suffers plastic deformation (permanent change in shape).

Harmful Load Conditions:
- Overload → Compression or extension beyond limits causes deformation
- Cyclic Loading → Repeated stress leads to fatigue cracks
- Off-axis Load → Misalignment causes bending, twisting, and instability

Best Practices:
- Apply loads 25–30% below the yield point for safety
- Avoid maximum compression or extension
- Ensure correct alignment to reduce uneven stress

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🌡️ 3. Operating Temperature
Temperature has a major impact on spring performance. High heat reduces stiffness, while low temperatures can cause brittleness.

Temperature Effects:
- Above 100°C → Yield strength decreases
- Above 300°C → Carbon steel springs lose shape under load
- Below 0°C → Some alloys become brittle and crack easily

Best Practices:
- Select heat-resistant alloys (Inconel, SUS316) for high-temp applications
- Perform long-term durability testing in actual operating environments

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✅ Reliable Spring Solutions with KEM (THAILAND) CO., LTD.
KEM (THAILAND) CO., LTD. provides custom spring design and manufacturing that ensures durability under extreme mechanical and thermal conditions.

👉 Need durable and deformation-resistant springs for critical machinery?
Trust KEM (THAILAND) CO., LTD. as your technical partner.

📩 For more details, [download our PDF] or contact our engineering team today.

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