Alloy 20 Fasteners are hardware components made from a nickel-iron-chromium-molybdenum alloy known as Alloy 20, also referred to as Carpenter 20 or Incoloy 20. This alloy exhibits exceptional resistance to various corrosive environments, making it suitable for applications where corrosion resistance is a primary concern. The chemical composition of Alloy 20 typically includes 19-21% chromium, 32-38% nickel, 2-3% molybdenum, 3-4% copper, 0.07% carbon, 2-3% iron, 1-2.5% manganese, and small amounts of other elements like silicon, sulfur, and phosphorus.

One of the key features of Alloy 20 Fasteners is their outstanding resistance to a wide range of corrosive media. They are highly resistant to general corrosion, pitting, and crevice corrosion in acidic and chloride-rich environments, making them suitable for applications in chemical processing, petrochemical, and pharmaceutical industries. Additionally, Alloy 20 Fasteners exhibit excellent resistance to sulfuric acid, nitric acid, phosphoric acid, and other aggressive chemicals, making them ideal for use in corrosive process environments.

ASTM B473 Alloy 20 Fasteners, Alloy 20 Stainless Steel Stud Bolts, Alloy 20 Fasteners, Alloy 20 Hex Bolt, Alloy 20 Hex Nuts, DIN 2.4660 Threaded Rod, Alloy 20Cb-3® Fasteners, Carpenter 20 Anchor Fasteners, Alloy 20 Fasteners Manufacturers in India.

Alloy 20 Fasteners
  • UNS


  • WNR


  • ASTM

    ASTM B473, ASME SB473


Corrosion resistance is not the only advantage of Alloy 20 Fasteners. They also possess good mechanical properties, including high strength and excellent fabricability. They can be easily formed, welded, and machined, allowing for various fabrication processes and ensuring that the fasteners can be tailored to specific application requirements.

Alloy 20 Fasteners are widely used in critical applications where resistance to corrosion is vital. They are commonly employed in chemical processing plants for equipment such as pumps, valves, heat exchangers, and reactors, where they can withstand aggressive chemical environments and high temperatures.

Alloy 20 Fasteners, Alloy 20 Threaded Rod, Alloy 20 N08020 Washer, 20 Nickel Hex Head Bolt, Nickel Alloy 20 Industrial Fasteners, ASTM B473 Alloy 20 Nut, Nickel Alloy 20 Fasteners Suppliers in Mumbai.

fevicon-logo Specifications of Alloy 20 Fasteners

Alloy 20 Fasteners Specifications ASTM B473, ASME SB473
Standard of Alloy 20 Fasteners DIN, ASTM, BS and all International Standards
Size M3 to M90
Length 10mm to 1000mm
Alloy Grades Alloy 20CB3
Alloy 20 Fasteners Type Bolts, Nuts, Sockets, Screws, Screw, Studs, Socket Screw, Hex Set Screw, Cap Screw, Machine Screw, Pan Head Screw, Allen Cap screw, Socket Head Cap Screw, Wing Screw, Spring Washers, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut, Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw,U- Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts, Wing Screw, T-Head Bolts, Foundation Bolts, Eye Bolt,Structural Bolts.

The petrochemical industry also utilizes Alloy 20 Fasteners for similar purposes, as they provide excellent resistance to sulfur-containing hydrocarbons. Moreover, they find applications in the pharmaceutical and food processing industries, where their corrosion resistance and hygienic properties are crucial for maintaining product purity.

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fevicon-logo Equivalent Grades Of Alloy 20 Fasteners

Alloy 20 2.4660 N08020 NiCr20CuMo Z2NCUD31-20AZ

fevicon-logo Chemical Composition of Alloy 20 Fasteners

Grade C Mn Si S Cu Ni Cr Fe Mo P
Alloy 20 0.07 max 2.00 max 1.00 max 0.035 max 3.00 – 4.00 32.00 – 38.00 19.00 – 21.00 29.85 min* 2.00 – 3.00 0.045 max

fevicon-logo Mechanical Properties of Alloy 20 Fasteners

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Alloy 20 8.1 g/cm3 1443 °C (2430 °F) Psi -80,000, MPa -551 Psi - 35,000, MPa - 241 30 %

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fevicon-logo Types of Nickel 200 Fasteners


Alloy 20 Nuts


Carpenter 20Cb-3 Bolt


Alloy 20 Washer

Stud Bolts

Inconel 20 Stud Bolts

Hex Bolt

Incoloy 20 Hex Bolt

Threaded Rod

Alloy 20 Threaded Rod

Anchor Bolt

Carpenter 20 Anchor Bolt

Spring Washer

Nickel Alloy 20 Spring Washer

Fasteners Manufacturers In India

  • Hardness testing to ISO 6508-1

  • Nut proof load testing to ISO 898-2

  • Suitability for preloading to EN 14399-2

  • Calibrated gauges and tools

fevicon-logo Other Types Of Alloy 20 Fastener

Alloy 20 Fasteners Carpenter 20Cb-3 Bolts and Nuts
ASTM B473 Alloy 20 Fasteners Alloy 20 Fasteners Supplier in India
2.4660 Fasteners Nickel Alloy 20 Threaded Rod
Alloy 20 Fasteners Manufacturer in Mumbai UNS N08020 Threaded Rod
Carpenter 20 Fasteners Suppliers in Mumbai Alloy 20Cb-3® Spring Washer
Alloy 20Cb-3® Countersunk Bolts Alloy 20 Washers
Carpenter 20 Fasteners Incoloy® 20 Carriage Bolts

fevicon-logo Alloy 20 Fastener Application Industries

Aerospace Industry
Nuclear Industry
MEdical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry
Nut Bolt