2 - 4um Coating Disk Spring DIN 2093 Surface Treatment For Extreme Environments
2 - 4um Coating Disk Spring DIN 2093 Surface Treatment For Extreme Environments
Basic Properties
Place of Origin:
Sihong, China
Brand Name:
Sunzo
Certification:
CE/IATF16949/45001/14001/9001
Trading Properties
Minimum Order Quantity:
Negotiable
Price:
Negotiable
Payment Terms:
Negotiable
Product Summary
SUNZO disc springs offer superior corrosion resistance with specialized surface treatments like Dacromet and phosphating. Certified to ISO, MIL-STD, and ASTM standards, they withstand extreme environments from marine to chemical processing.
Product Custom Attributes
Highlight
2um din 16983
,4um din 16983
,disk spring for Extreme Environments
Coating Thickness:
2-4μm (Black Oxide)
Salt Spray Resistance:
1,500+ Hours (Dacromet)
Phosphate Coating Thickness:
8-12μm
Corrosion Resistance:
500+ Hours (Phosphating)
Friction Reduction:
40% (Phosphating)
Temperature Range:
-270°C To 650°C
Dacromet Thickness:
5-8μm
Zinc Plating Thickness:
8-12μm (Mechanical Zinc)
Hardness:
250-300 HV (Mechanical Zinc)
Wear Resistance:
300% Improved (Mechanical Zinc)
Salt Spray Protection:
1,000 Hours (Mechanical Zinc)
Material Compatibility:
Superalloys (Inconel 718)
Coating Pressure:
40-60 MPa (Mechanical Zinc)
Humidity Resistance:
≤60% RH (Plain Oil Coating)
Chemical Exposure:
PH 2-12 (Dacromet)
Adhesion Testing:
ISO 2409
Product Description
Detailed Specifications & Features
SUNZO Disc Spring Corrosion Resistance: A Technical Guide to Surface Treatment Selection for Extreme Environments
In harsh operating environments where moisture, chemicals, and mechanical stress threaten component integrity, SUNZO disc springs deliver proven corrosion resistance through precision-engineered surface treatment technologies. Our comprehensive surface treatment portfolio is scientifically matched to specific environmental challenges, ensuring optimal performance and extended service life.
Surface Treatment Options
Plain Oil Coating & Black Oxide Treatment
For general industrial environments with moderate humidity (≤60% RH) and minimal chemical exposure, our plain oil coating (ISO VG 32 mineral oil) provides cost-effective temporary protection during storage and initial operation. Black oxide treatment (per MIL-DTL-13924 Class 1) creates a conversion coating (2-4μm thickness) with 96-hour salt spray resistance (ASTM B117), ideal for indoor machinery, tooling fixtures, and non-critical automotive components.
Phosphating Technology
In hydraulic systems, damp industrial settings, and applications requiring lubricity, zinc-manganese phosphating (8-12μm coating) delivers dual protection: 500+ hours of corrosion resistance (ASTM B117) and enhanced wear performance (coefficient of friction reduced by 40% vs. untreated surfaces). The crystalline phosphate layer acts as a solid lubricant reservoir, making it suitable for hydraulic cylinder seals, gearbox assemblies, and heavy equipment pivot points operating in temperatures from -40°C to 120°C.
Dacromet Coating System
For extreme environments including marine (saltwater immersion), chemical processing (pH 2-12 exposure), and aerospace (corrosive fuel vapors), our dacromet coating provides industry-leading protection. This chromium-free zinc-aluminum flake system (5-8μm thickness) achieves 1,500+ hours of neutral salt spray resistance (ISO 9227) and maintains flexibility under cyclic loading. Certified to ISO 10289 and ASTM F1116, it's specified for offshore oil rigs, chemical reactor valves, and satellite deployment mechanisms.
Mechanical Zinc Plating
Engineered for high-wear industrial applications combining abrasion and corrosion challenges, our mechanical zinc plating (85% Zn/15% Al alloy) applied via high-pressure tumbling (40-60 MPa) creates a dense 8-12μm coating with 250-300 HV hardness. This treatment delivers 300% improved wear resistance (ASTM G99) and 1,000-hour salt spray protection, making it ideal for mining equipment, steel mill roll bearings, and construction machinery exposed to abrasive particulates.
Material-Surface Treatment Compatibility
| Base Material | Recommended Treatment |
|---|---|
| Carbon steels (65Mn, 50CrVA) | Phosphating and mechanical zinc plating |
| Stainless steels (SUS316, 17-7PH) | Dacromet coating for enhanced corrosion resistance |
| Superalloys (Inconel 718) | Specialized passivation + dacromet for extreme temperature corrosion |
Selection Methodology
SUNZO engineers utilize a proprietary Environmental Severity Index (ESI) to recommend optimal treatments, considering:
- Corrosive media (chlorides, sulfides, moisture)
- Temperature range (-270°C to 650°C)
- Mechanical stress (static/dynamic loading, friction)
- Regulatory requirements (RoHS, REACH, MIL-STD)
All surface treatments undergo rigorous validation including adhesion testing (ISO 2409 cross-cut method), thickness measurement (eddy current), and accelerated aging (ASTM D4585 humidity cycling). With our ISO 14001-certified coating facilities and material traceability (EN 10204 3.1), SUNZO ensures consistent performance across production batches.
Our technical team provides complimentary surface treatment audits to optimize your disc spring's corrosion resistance for its specific operating environment.
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