Ningbo XiaYi Electromechanical Technology Co.,Ltd.
| Delivery Time | 30 working days for new samples |
| Hardness | HRB60-85 |
| Payment Terms | T/T, |
| material | CK101 |
| Application | Shock absorber |
| Press | 40 - 80T |
| Service | OEM |
| Supply Ability | 50,000pcs per month |
| Product Name | gasket |
| Packaging Details | Standard exporting package |
| Model Number | K25-00-5003-X |
| Brand Name | XIAYI |
| Certification | IATF16949:2016 |
| Place of Origin | NINGBO,CHINA |
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Product Specification
| Delivery Time | 30 working days for new samples | Hardness | HRB60-85 |
| Payment Terms | T/T, | material | CK101 |
| Application | Shock absorber | Press | 40 - 80T |
| Service | OEM | Supply Ability | 50,000pcs per month |
| Product Name | gasket | Packaging Details | Standard exporting package |
| Model Number | K25-00-5003-X | Brand Name | XIAYI |
| Certification | IATF16949:2016 | Place of Origin | NINGBO,CHINA |
| High Light | Spring Steel shock valve shims ，Shock valve shims for suspension ，Controlled suspension performance shims | ||
XIAYI Spring Steel Shock Valve Shims leverage the inherent resilience and fatigue resistance of premium spring steel alloys (SK4, SK5, 65MN, CK101, C100S, SUS, 20C) to deliver controlled, repeatable suspension damping performance. Spring steel's unique combination of high yield strength and excellent elastic recovery makes it the material of choice for shims subjected to millions of cyclic deflections. With IATF16949:2016 certified manufacturing and over 3,500 available mold configurations, our spring steel shims provide the material integrity that suspension engineers trust for critical damping applications.
Material Performance Challenges We AddressChallenge 1: Fatigue Failure from Cyclic Loading — Shock absorber shims undergo constant deflection cycles — every bump, every corner, every braking event. Inferior materials develop micro-cracks that propagate to catastrophic failure. Spring steel's superior fatigue limit ensures our shims maintain their mechanical properties through the full design life of the damper.
Challenge 2: Permanent Deformation (Shim Setting) — When a shim permanently bends under overload, the valve no longer seals properly, causing damping force loss and inconsistent performance. Spring steel's high yield strength prevents plastic deformation, maintaining the shim's designed preload and sealing integrity after overload events.
Challenge 3: Material Selection Complexity — Choosing the wrong steel grade for a specific damping application can lead to premature failure. Our multi-grade inventory (SK4 through SUS) allows application-specific material matching, supported by our metallurgical team's material recommendation service.
| Grade | Characteristics | Best For |
|---|---|---|
| SK4 / SK5 | High carbon tool steel, excellent hardness | Heavy-duty, high-wear applications |
| 65MN | Manganese spring steel, high toughness | High-impact, off-road applications |
| CK101 / C100S | Carbon spring steel, balanced properties | General automotive applications |
| SUS (Stainless) | Corrosion resistant, moderate hardness | Coastal, humid, winter-salt environments |
| 20C | Low carbon, good formability | Thin gauge, complex geometry requirements |
| Parameter | Specification |
|---|---|
| Material | SK4, SK5, 65MN, CK101, C100S, SUS, 20C |
| Thickness Range | 0.1mm – 3.5mm |
| Hardness | Material-dependent (HRB60-85 target range) |
| Mold Library | 3,500+ configurations |
| Certification | IATF16949:2016 |
| Availability | OEM / ODM |
Our comprehensive quality assurance program validates every spring steel shim batch: three-coordinate measurement for dimensional accuracy, optical imaging for surface quality, metalloscopy for microstructure verification, digital hardness testing, density measurement, and tensile testing. This multi-dimensional inspection protocol ensures that the material you specify is the material you receive — verified and documented.
Frequently Asked QuestionsQ: Which spring steel grade should I choose for my application?
The optimal grade depends on your operating environment, load profile, and cost targets. For standard automotive dampers, CK101/C100S offers an excellent balance. For corrosion-prone environments, SUS stainless steel is recommended. Our metallurgical team can provide a material recommendation based on your application parameters — contact us for a technical consultation.
Q: What is the significance of 3,500+ molds?
This extensive mold library means that for a wide range of common shim dimensions, we can begin production immediately without tooling lead time or cost. Even if your exact dimension isn't in our library, we likely have a close match that can be adapted quickly, reducing your time-to-production.
Q: How do you ensure spring steel doesn't lose its properties during stamping?
Our stamping process parameters (clearance, speed, lubrication) are optimized per material grade to minimize work-hardening effects. Post-stamping heat treatment, when specified, restores and optimizes the desired mechanical properties. Process validation is documented for each material-grade combination in our production system.
Q: Can you provide material certificates with each shipment?
Yes. Every shipment includes a Certificate of Conformance. Mill test certificates (MTC) showing chemical composition and mechanical properties of the source material are available upon request. For PPAP submissions, we provide the full material certification package.
Q: What is the thinnest spring steel shim you can produce?
Our spring steel shim production ranges from 0.1mm to 3.5mm thickness. The minimum achievable thickness depends on the specific material grade and diameter — please provide your target dimensions for a capability assessment.
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
1500000-5000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Founded in 2006 and headquartered in the strategic port city of Ningbo, China, XIAYI is a premier high-tech manufacturer specializing in the research, development, and production of precision shock absorber components and automated assembly equipment. With nearly two decades of indust... Founded in 2006 and headquartered in the strategic port city of Ningbo, China, XIAYI is a premier high-tech manufacturer specializing in the research, development, and production of precision shock absorber components and automated assembly equipment. With nearly two decades of indust...
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