Dacromet Plated Spring: Engineered to Withstand 128 Hours of Salt Spray
This product image from Zhejiang Zhengna Technology Co., Ltd. features a precision compression spring that defines reliability in corrosive environments. The spring, with its uniform silver-gray Dacromet plating and compact helical coil, is not just a component—it's a certified solution. As specified, this spring is electroplated with Dacromet and has successfully passed a rigorous 128-hour salt spray test (ASTM B117). This certification guarantees exceptional corrosion resistance, making it an indispensable choice for applications where failure due to rust is not an option.
Image: A high-precision, silver-gray Dacromet plated compression spring, showcased against a pure white background. The uniform finish and tight coil geometry reflect the quality that underpins its 128-hour salt spray certification.
Product Specifications & Certification
| Attribute |
Details & Certification |
Performance Implication |
| Core Material & Plating |
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Spring Material: High-Carbon Spring Steel (e.g., SAE 1070).
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Corrosion Protection:Dacromet (Zn-Al Flake) Coating. A superior, non-electrolytic coating offering sacrificial and barrier protection.
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Dacromet provides far superior corrosion and heat resistance compared to standard zinc plating, with excellent adhesion and uniform coverage. |
| Salt Spray Test Certification |
Certified for 128 hours per ASTM B117 standard without red rust formation. Test report available upon request. |
This is a quantifiable guarantee. It means the spring can withstand highly corrosive saline environments equivalent to many years of service in harsh outdoor, marine, or industrial atmospheres. |
| Spring Design |
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Type: Compression spring with closed and ground ends for stability.
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Parameters: Customizable wire diameter, outer diameter, free length, and spring rate.
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Finish: Characteristic matte silver-gray color of Dacromet.
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Can be engineered to provide the exact mechanical force required, while the coating ensures the underlying performance lasts. |
| Target Industries & Applications |
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Automotive (Underbody, Braking Systems): Resists road salt.
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Marine & Offshore: Withstands constant saltwater exposure.
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Outdoor Industrial Equipment: For agricultural, construction machinery.
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Chemical Processing: Where acidic or alkaline fumes are present.
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Specifically designed for the most challenging environments where standard springs would quickly corrode and fail. |
Why Specify This 128-Hour Certified Spring?
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Certified Performance, Not Just a Claim: The 128-hour salt spray test certification is a third-party verifiable benchmark. It removes guesswork about corrosion resistance and provides a clear, comparative standard against other coatings.
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Dacromet – The Superior Coating Choice: Dacromet is not a simple plating. It's a water-based coating containing zinc and aluminum flakes that provides galvanic protection, and its non-electrolytic application eliminates hydrogen embrittlement risk in high-strength steels.
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Extended Product Lifecycle & Reduced TCO: By specifying this spring, you dramatically reduce the risk of premature spring failure due to corrosion. This minimizes downtime, maintenance costs, and warranty claims, lowering the total cost of ownership for your product.
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Engineering for Critical Applications: We understand that in many of your applications, a spring failure can lead to system failure. This product is engineered and certified for those mission-critical roles.
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Full Traceability & Quality Assurance: Our process ensures consistency. We can provide material certifications and the salt spray test report, giving you complete confidence in your supply chain.
Our Process: From Steel to Certified Spring
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Material Selection & Spring Design: We start with certified spring steel and design the spring to your load and dimensional specifications.
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Precision Coiling & Heat Treatment: CNC coiling ensures consistency, followed by stress-relieving heat treatment.
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Dacromet Coating Application: The springs are processed through a controlled Dacromet coating line, ensuring uniform thickness and complete coverage.
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Rigorous Validation Testing: Batch samples are subjected to salt spray testing (ASTM B117) to validate and certify the 128-hour performance. This is a routine part of our quality protocol.
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Final Inspection & Certification: Each order undergoes final inspection, and the relevant salt spray test certification is provided as part of the quality documentation.
Tired of spring failures in corrosive environments? Specify with confidence. Contact us for technical data sheets, the 128-hour test report, and a quote for your application.
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