Alloy 20 Flanges are a type of corrosion-resistant alloy used in piping systems. They provide a wide range of benefits, including excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Alloy 20 Flanges are widely used in many different industries due to their excellent properties. They can be used for low temperature services such as cryogenic applications due to their excellent toughness at low temperatures (-20°F).


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Alloy 20 Pipe Flanges offer superior corrosion resistance in highly acidic environments like sulfuric acid and phosphoric acid concentrations that other alloys cannot match. This makes them ideal for applications involving chemicals or similar harsh environments where durability is essential. Furthermore, Alloy 20 Slip On Raised Flanges boast good pressure ratings up to 1500 psi so they can be used in high pressure systems like oil refineries or chemical plants too. Alloy 20 Forged Fittings, Alloy 20 Pipe Fittings and many more grades are also available.


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The main benefit of using an Alloy 20 Spectacle Blind Flanges is its superior corrosion resistance qualities when compared to other alloys such as Stainless Steel Flanges or Carbon Steel Flanges grades, which are often more prone to rusting or staining if exposed to certain elements or extreme temperatures respectively. Furthermore, it offers good mechanical strength and ductility at higher temperatures than other alloys can withstand without deforming or becoming brittle due to extreme temperature changes over time - another reason why Alloy 20 Threaded Flanges is a popular choice among industrial companies who require tough components that last longer without fail under demanding conditions. Different types of products are available, such as Incoloy 825 Pipe Fittings,Hastelloy C2000 Forgings, etc.

Alloy 20 Flanges

Alloy 20 Flanges

Nickel-Alloy 20 Flanges offer a number of benefits that make them an attractive option for industrial companies looking for durable pipes with superior corrosion resistance capabilities that require little maintenance over time - from exceptional performance at low temperatures through to superior mechanical strength even under extreme conditions; Alloy 20 Lap Joint Flanges have proven time after time that they are one of the best options. Perfect for use in highly acidic environments like sulfuric acid concentrations or places where extreme temperatures prevail.

UNS N08020 Flanges come in various shapes and sizes, making them suitable for any kind of application. The most common type is the standard ANSI B16.5 flange. It is available in Slip-On, Weld Neck, Socket Welding, Threaded (Screwed) and Lap Joint styles. These flanges also come with both raised face (RF) and flat face (FF) designs for improved sealing capability. Moreover, there are other types such as welding neck long weld neck (LWN), reducing weld neck (RWN), slip-on reducing (SORF), threadolet fittings, blinds (BLRF), orifice union flanges (OFU) and others depending on the application requirements.

What are some common applications for Alloy 20 flanges?

Alloy 20 flanges are commonly used in chemical processing, petrochemical, and pharmaceutical applications where resistance to corrosive environments is essential. They are particularly well-suited for use in sulfuric acid environments and have also been used in other harsh chemical environments

What is Alloy 20 Flanges?

Alloy 20 is a nickel-iron-chromium alloy with additions of molybdenum, copper, and niobium. It is known for its excellent resistance to corrosion, particularly in sulfuric acid environments. This makes it well-suited for use in flange applications where corrosion resistance is critical

What are the Advantages of Alloy 20 Flanges?

Alloy 20 flanges offer several advantages over other materials in certain applications. Firstly, they have excellent resistance to corrosion in harsh environments, including sulfuric acid, nitric acid, & chloride solutions. This makes them ideal for use in industries such as chemical processing, petrochemical, & pharmaceuticals where exposure to these chemicals is common.

Werkstoff No 2.4660 Flat Face Flanges, Nicrofer® 3620 Nb–Alloy 20 Flange Manufacturer, Incoloy® 20 Socket Weld Raised Face Flanges (SWRF) Traders, Alloy 20 Reducing Flanges, EN 1092-1 Alloy 20 Reducing Flanges, Carpenter® 20 Spectacle Blind Flanges Suppliers, Alloy 20 Blind Flanges, Incoloy® Alloy 20 Square Flanges, Alloy 20 CB-3 BS4504 Tongue & Groove Flanges, Carpenter® Alloy 20 Weld Neck Raised Face Flanges (WNRF) Flanges Exporters.

Alloy 20 Socket Weld Flanges Specification

Specifications ASTM B462 / ASME SB462

Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Size 1/2" (15 NB) to 48" (1200NB)

Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Grade Alloy 20 Flanges UNS (N08020), DIN (2.4660)

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Alloy 20 Flanges Equivalent Indian Standard

STANDARD UNS WNR. AFNOR EN
Alloy 20 N08020 2.4660 Z2NCUD31-20AZ NiCr20CuMo

ASTM B462 Carpenter® 20 Forged Flanges Chemical Composition

Grade Ni C Mn P S Si Cr Nb Mo Cu
Alloy 20 32 - 38 0.02 max 1 - 2 0.02 max 0.005 max 0.7 max 19 - 21 0.1 - 0.3 2 - 3 3 - 4

Incoloy® 20 ASME SB462 Threaded / Screwed Flanges Mechanical Properties

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 %

Other Types of Incoloy® 20 Industrial Flanges

  • Alloy 20 Slip On Flanges
  • Incoloy® 20 Pipe Flanges
  • Nickel Alloy 20 Blind Flanges
  • Carpenter® 20 Orifice Flange
  • Incoloy 20 Long Weld Neck Flanges

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