Introduction to Alloy 20 Fasteners

Alloy 20 Fasteners, also known as Carpenter 20 or UNS N08020, represent the pinnacle of corrosion-resistant fastening technology. These nickel-iron-chromium based superalloy fasteners are specifically engineered to deliver exceptional performance in severely corrosive environments, particularly in sulfuric acid applications. At RAYCHIN LIMITED, we manufacture premium Alloy 20 bolts, Alloy 20 nuts, Alloy 20 screws, and Alloy 20 washers that provide unmatched reliability in chemical processing, pharmaceutical, and food processing industries.

Technical Specifications and Material Properties

Mechanical Properties of Alloy 20 Fasteners
Alloy 20 fasteners mechanical properties demonstrate outstanding performance characteristics:

• Tensile Strength: 620 MPa (90 ksi) minimum

• Yield Strength: 300 MPa (44 ksi) minimum

• Elongation: 30% minimum in 2 inches

• Hardness: 170-220 HB

• Impact Strength: Excellent Charpy V-notch values at both ambient and cryogenic temperatures

• Fatigue Strength: Superior resistance to cyclic loading conditions

Chemical Composition of Alloy 20 Fasteners
The precise Alloy 20 chemical composition ensures optimal corrosion resistance and mechanical properties:

Performance Characteristics

Corrosion Resistance Performance
Alloy 20 fasteners corrosion resistance provides exceptional performance in aggressive environments:

• Sulfuric Acid Resistance: Excellent resistance to hot sulfuric acid up to 50% concentration

• Chloride Resistance: Superior resistance to chloride-induced stress corrosion cracking

• Pitting & Crevice Corrosion: Outstanding performance in chloride-containing solutions

• Oxidizing Salts: Excellent resistance to oxidizing salts and acids

• Phosphoric Acid: Good resistance to all concentrations at various temperatures

• Nitric Acid: Excellent resistance to nitric acid contamination

Temperature Performance
The temperature capabilities of Alloy 20 fasteners include:

• Continuous Service: Up to 425°C (800°F) for most applications

• Short-term Exposure: Up to 540°C (1000°F) for brief periods

• Cryogenic Service: Suitable for temperatures down to -196°C (-320°F)

• Thermal Stability: Maintains mechanical properties after thermal cycling

Product Range and Applications

Comprehensive Alloy 20 Fasteners Product Line
RAYCHIN LIMITED manufactures a complete range of Alloy 20 fasteners:

Alloy 20 Bolts

• Hex Head Bolts: ASTM B473 standard compliance

• Socket Head Cap Screws: Precision machined for critical applications

• Stud Bolts: Double-end studs for flanged connections

• U-Bolts: For piping and tubing applications

Alloy 20 Nuts

• Heavy Hex Nuts: ASTM B473 specifications

• Hex Nuts: Standard and jam nut configurations

• Flange Nuts: For high-pressure applications

• Coupling Nuts: For extended length requirements

Alloy 20 Screws

• Machine Screws: Various head styles and drive types

• Self-Tapping Screws: For sheet metal and plastic applications

• Set Screws: For precise positioning applications

• Thread Forming Screws: For vibration-resistant applications

Alloy 20 Washers

• Flat Washers: Standard and heavy pattern

• Spring Washers: For vibration resistance

• Torque Washers: For structural applications

• Fender Washers: Large outer diameter for load distribution

Industry Applications

Alloy 20 fasteners serve critical applications across multiple industries:

Chemical Processing Industry

• Sulfuric acid pickling tanks and heating coils

• Chemical reactors and processing vessels

• Heat exchangers and condensers

• Piping systems and valve components

Pharmaceutical Industry

• Reactor vessels and mixing tanks

• Process piping and transfer systems

• Storage tanks and purification equipment

• Cleanroom applications

Food Processing Industry

• Acidic food processing equipment

• Vinegar and citric acid applications

• Food grade storage and processing systems

Professional Alloy 20 Fastener Manufacturer: RAYCHIN LIMITED

Manufacturing Capabilities
As a leading Alloy 20 Fasteners Manufacturer and Alloy 20 Fasteners Supplier, RAYCHIN LIMITED employs advanced manufacturing technologies:

• Material Processing: Electric arc furnace and argon oxygen decarburization

• Forming Technology: Precision cold and hot forging processes

• Heat Treatment: Solution annealing at 925-1010°C followed by rapid quenching

• Machining: CNC machining with ±0.01mm tolerance capability

• Surface Finishing: Electropolishing and passivation services

Quality Assurance Systems

• Certifications: ISO 9001:2015, PED 2014/68/EU, and AD2000-Merkblatt

• Material Testing: Full chemical analysis and mechanical testing

• Non-Destructive Testing: Liquid penetrant and eddy current testing

• Traceability: Complete documentation from melt to final product

• Standards Compliance: ASTM, ASME, DIN, and customer specifications

Technical Expertise
Our engineering team provides comprehensive support:

• Material Selection: Expert guidance on alloy selection for specific corrosives

• Application Engineering: Custom solutions for unique service conditions

• Failure Analysis: Root cause analysis and preventive recommendations

• Technical Documentation: Complete material certifications and test reports

Call to Action: Request Quote or Technical Consultation

Enhance your corrosion protection with premium Alloy 20 Fasteners from RAYCHIN LIMITED. Contact us today for:

• Competitive pricing for Alloy 20 bolts, nuts, screws, and washers

• Technical specifications and material certifications

• Custom manufacturing and special configurations

• Emergency delivery and just-in-time inventory

• Application engineering and technical support

Contact Information:
Website: https://www.ray-chin.com/products/Fasteners/Alloy-20-Fasteners/Alloy-20-Fasteners.html
Email: sales@ray-chin.com
Phone: +86 0534 2166566

RAYCHIN LIMITED - Your trusted partner for high-performance Alloy 20 Fasteners, delivering exceptional corrosion resistance, technical expertise, and reliable service for the most demanding industrial applications worldwide. Our commitment to quality ensures that every fastener meets the highest standards of performance and reliability in corrosive environments.