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High-Strength 440B Stainless Steel Arc Connectors | CNC Machined Corrosion-Resistant Couplers

CNC machined high-strength 440B stainless steel arc connectors. Excellent corrosion resistance for demanding applications.

Project Name
Medical stainless steel parts
Material
Stainless steel 440B
Processing Equipment
5-axis machining center
Technology
CNC milling
Testing Instruments
CMM
Surface Treatment
Anodizing clear
Post-surface Inspection Equipment
CMM
Application Areas
Medical

Core Parameters

CharacteristicSpecificationTesting Standard
Material HardnessHRC 50-54 (quenched & tempered)ASTM A276
Arc Profile Accuracy±0.03mm contour toleranceISO 1101
Corrosion Resistance500hr salt spray test (no rust)ASTM B117
Fatigue Life10 million cycles @ 200N radial loadISO 12107

Design Advantages

  • Bio-inspired Arc Optimization:

    • Available in R5-R50mm curvature radii

    • Stress-dispersing grooves reduce peak stress by 30%

  • Self-lubrication Options:

    • Laser-microtextured oil reservoirs (0.1mm depth)

    • FDA-compliant embedded PTFE bushings

  • Quick-connect Mechanism:

    • Eccentric cam locking system

    • Single-hand operation (<8N·m torque)

Process Control

  • Heat Treatment Integration:

    • Rough machining → vacuum hardening → finish machining (0.1mm allowance)

    • Cryogenic treatment (-80°C×4h for dimensional stability)

  • Curved Surface Machining:

    • 5-axis flank milling (eliminates ball-end tool marks)

    • In-process laser profilometry

  • Rust Prevention:

    • Post-machining passivation (nitrate/dichromate)

    • VCI packaging (2-year rust-free storage)

Quality Certification

  • Rockwell hardness gradient map

  • CMM arc profile scan data

  • Metallographic analysis (≥95% martensite content)

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Surface treatment

Name

Applicable Materials

Colors

Can be applied to

Anodizing

Anodizing

Aluminum

Clear, black, grey, red, blue,green,orange,gold

Media Blasting, Tumbling, Alodine*

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