Corrosion Resistant Stainless Steel Helical Spring with Medical-Grade 316L and Precision Load-Deflection Characteristics
Corrosion Resistant Stainless Steel Helical Spring with Medical-Grade 316L and Precision Load-Deflection Characteristics
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
Stainless steel helical springs engineered for extreme corrosion resistance in harsh environments. Made from 316L/17-4PH steel with ISO 13485 certification, electropolished finish, and custom options. Ideal for marine, chemical, and food processing applications.
Product Custom Attributes
Highlight
helical compression spring
,316l helical spring
,316l compression spring
Material:
316L Stainless Steel (UNS S31603), 17-4 PH Stainless Steel
Corrosion Resistance:
Pitting Resistance Equivalent Number >40
Salt Spray Test:
1,000-hour Per ASTM B117
Nickel Plating Thickness:
10μm
Acid Resistance:
500+ Hours In 5% Sulfuric Acid
Surface Finish:
Ra <0.2μm
Load-deflection Tolerance:
±2%
Spring Rate Range:
0.5-200 N/mm
Stress Reduction:
35% With Variable Pitch
Fatigue Life:
10⁶ Cycles At 80% Yield Strength
Manufacturing Standard:
ISO 13485
Cleanroom Class:
Class 8
Heat Treatment Temperature:
1050°C
Tensile Strength:
1,200 MPa
Passivation Standard:
ASTM A967
Temperature Range:
-40°C To 200°C
Alloy Resistance:
98% Sulfuric Acid (Hastelloy C276)
Corrosion Warranty:
25-year (Duplex 2205)
Field Failure Rate:
<0.001%
Fatigue Life Prediction:
Documented
Product Description
Detailed Specifications & Features
Stainless Steel Helical Spring Engineered Corrosion Resistance
In aggressive environments—from coastal marine facilities to chemical processing plants—compression springs face relentless attack from moisture, salt spray, and chemical vapors that degrade conventional materials. Our Stainless Steel Helical Springs are engineered to thrive in these conditions, leveraging advanced alloy formulations and precision manufacturing to deliver unmatched corrosion resistance and mechanical performance.
Material Specifications
Primary Materials:
Medical-grade 316L stainless steel (UNS S31603), precipitation-hardened 17-4 PH stainless steel
Corrosion Resistance:
Pitting Resistance Equivalent Number >40, validated through 1,000-hour salt spray testing per ASTM B117
Surface Finish:
Electropolished (Ra <0.2μm), eliminating micro-pores where corrosion initiates
Engineering & Manufacturing Excellence
Our engineering process integrates CAD (SolidWorks 2024) with FEA (ANSYS Mechanical) simulations to optimize coil geometry for both corrosion resistance and mechanical efficiency. Manufacturing adheres to ISO 13485 standards with cleanroom production (Class 8) to prevent particulate contamination.
Key Performance Features:
- Precise load-deflection characteristics (±2% tolerance across 0.5-200 N/mm spring rates)
- Variable pitch designs reduce stress concentrations by 35% compared to uniform coils
- Extended fatigue life to 10⁶ cycles at 80% of yield strength
- Tensile strengths up to 1,200 MPa
- Heat treatment in nitrogen-atmosphere furnaces at 1050°C
Industry-Specific Solutions
| Industry | Application | Material Specification |
|---|---|---|
| Marine Engineering | Offshore oil rig valves | T316 stainless steel, rated for -40°C to 200°C operation |
| Chemical Processing | Reactor pressure relief valves | Hastelloy C276 alloy springs, resistant to 98% sulfuric acid |
| Food & Beverage | Filling machine actuators | 304 stainless steel with FDA-compliant lubricants |
| Coastal Infrastructure | Tidal energy generators | Duplex 2205 stainless steel with 25-year corrosion warranty |
Quality Assurance & Compliance
Backed by a materials science team with 25+ years of corrosion engineering experience, we provide comprehensive testing documentation including corrosion test reports, material certificates (EN 10204 3.1.B), and fatigue life predictions. Our springs currently protect critical systems in 30+ countries with a field failure rate of <0.001% in corrosive environments.
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