Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
                                                                                                           
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Alloy Steels High Temperature Disc Springs Belleville Washer 60Si2MnA 50CrVA

Price Negotiable
Price: Negotiable
MOQ: Negotiable
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Brand: Sunzo
Product Description
SUNZO Disc Spring Material Comparison: 60Si2MnA vs 50CrVA – Technical Properties & Application Guide
60Si2MnA and 50CrVA are premium alloy steels engineered for disc spring applications, each offering distinct mechanical properties optimized for specific industrial demands. SUNZO provides technical insights to guide material selection based on load conditions, temperature exposure, and service life requirements.
Material Specifications
60Si2MnA: Cost-Effective Elasticity for General Industrial Use
This silicon-manganese spring steel exhibits exceptional elastic resilience (elastic modulus 206 GPa) and fatigue resistance, with a fatigue life exceeding 10⁶ cycles at 40% of ultimate tensile strength (1,275 MPa). Its chemical composition (0.56-0.64% C, 1.50-2.00% Si, 0.60-0.90% Mn) forms a fine-grained microstructure that delivers consistent performance under moderate loads (up to 30 kN).
Ideal for precision machinery, small hydraulic systems, and automotive clutch assemblies, 60Si2MnA operates reliably within -40°C to 120°C and offers cost advantages for high-volume applications.
50CrVA: High-Strength Toughness for Extreme Environments
Chromium-vanadium alloy steel (0.46-0.54% C, 0.80-1.10% Cr, 0.10-0.20% V) provides superior tensile strength (1,800 MPa) and impact toughness (≥78 J/cm²), making it suitable for high-load (50-100 kN) and elevated temperature (up to 250°C) applications.
Its heat-treated martensitic structure ensures minimal permanent deformation under cyclic loading, with fatigue life exceeding 10⁷ cycles at 35% of yield strength (1,600 MPa). Preferred for aerospace landing gear, high-end motor bearings, and oilfield downhole tools, 50CrVA offers enhanced wear resistance (hardness 45-50 HRC) and corrosion tolerance with proper surface treatment.
Material Selection Criteria
Choose 60Si2MnA for:
  • General industrial machinery
  • Cost-sensitive projects
  • Ambient temperature operations
  • Moderate load cycles
Choose 50CrVA for:
  • High-stress applications
  • Temperature extremes
  • Dynamic load environments
  • Critical safety components
Quality & Manufacturing Standards
SUNZO provides both materials with precision manufacturing (tolerances ±0.02mm) and customizable surface treatments: dacromet coating (1,000+ hours salt spray resistance) for 60Si2MnA, and electropolishing (Ra < 0.4μm) for 50CrVA in hygienic or high-corrosion settings.
All disc springs comply with ISO 16148 and DIN 2092 standards, with material certification via X-ray fluorescence analysis. Our engineering team offers FEA simulation to validate material performance under specific application conditions.

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
Location No.20, Xinghuo Road, Nanjing High-tech Development Zone
Contact Person wendy

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