Alloy 20 Flanges Manufacturer & Supplier in India

Alloy 20 Flange is a simple component that is used to join pipes, valves, and pumps, among other appliances, to form a leak-free and secure piping system.  Alloy 20 Flanges are made of nickel-chromium-molybdenum alloy mixed with copper, that keep it safe from wet and chemical environments. Alloy 20 Industrial Flanges are primarily utilized in chemical processing, petrochemical, pharmaceutical and food industries where corrosion resistance and strength are of importance. Its tensile strength is 551 Mpa minimum and the yield strength is 241 Mpa. They are also referred to as Carpenter 20 Alloy Flanges and Incoloy Alloy 20 Flange. They are stable even under high-pressure and temperature conditions. They are available in different pressure classes from 150 up to Class 2500 and in PN6 up to PN64, and also in ANSI B16.5, EN 1092-1, BS10 Table D, Table E, and DIN Standard Flanges.

Alloy 20 Flanges are available in a broad range to meet various piping needs, such as Alloy 20 Pipe Flanges, Alloy 20 Flat Flange, Alloy 20 Blind Flanges, slip-on, socket weld, threaded, and weld neck. The ANSI B16.5 Alloy 20 Orifice Flange and 20Cb-3 Weld Neck Flange are made to provide strong and leak-proof joints in high-pressure systems. A large number of engineers are searching for trusted  Alloy 20 Slip On Flanges and Alloy 20 Blind Flanges suppliers in India for correct dimensions and certified material. Kalpataru Pipings is the best supplier of Alloy 20Cb-3 Weld Neck Flange that is consistent in quality and traceability. We also provide Alloy 20 EN 1092-1 Flanges, and competitive alternatives of Alloy 20 WNRF Flanges that provide reliable solutions to the challenging industrial requirements.

Specifications of Alloy 20 Flanges

Category

Technical Details

Standards

ANSI/ASME B16.5, B16.36, B16.47 Series A & B, B16.48; EN1092; DIN; BS 10/4504/1560; JIS B2220; API 605/7S-15/7S-43; MSS S44; ISO70051; GOST

ANSI Pressure Rating

Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500

DIN/EN/UNI Pressure

PN6, PN10, PN16, PN25, PN40, PN64 (6Bar to 40Bar)

JIS Pressure Rating

5K, 10K, 16K, 20K, 30K, 40K, 63K

Common Types

Threaded, Screwed, Forged, Plate

Production Technique

Forged, Heat Treated, and Machined

Face Types

Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large/Small Male-Female (LMF/SMF), Tongue & Groove

Testing Methods

Hydrostatic testing, X-ray detector, Ultrasonic flaw detector, Magnetic particle detector, Direct-reading Spectrograph

Equipment Used

Pushing Machine, Press machine, Bending machine, Sand-blasting machine, Electric bevelling machine

ASTM B462 Alloy 20 Flanges Chemical Composition

The detailed chemical composition of alloy 20 flanges is given below.

Grade

Ni

C

Mo

Mn

Si

Fe

Cu

S

P

Cr

Alloy 20

32 – 38

0.02 max

2 – 3

1 – 2

0.7 max

Bal*

3 – 4

0.005 max

0.02 max

19 – 21

UNS N08020 Alloy 20 Flanges Physical Properties

The alloy 20 flanges come with different physical properties, and the details about these properties are given below.

Grade

Density

Melting Point

Yield Strength (0.2% Offset)

Tensile Strength

Elongation

Alloy 20

8.1 g/cm³

1443 °C (2430 °F)

35,000 Psi / 241 MPa

80,000 Psi / 551 MPa

30%

Equivalent Grades of UNS N08020 Flanges

The different equivalent grades of the alloy 20 flanges are given below according to the countries. 

Grade Icon
Grade
Alloy 20
Werkstoff Icon
Werkstoff Nr.
2.4660
USA Flag
UNS
(North America)
N08020
EU Flag
EN
(Europe)
NiCr20CuMo
France Flag
AFNOR
(France)
Z2NCUD31-20AZ

Different Types of Alloy 20 Flanges

ASTM B462 Alloy 20 Blind Flanges
ASTM B462 Alloy 20 Blind Flanges
ASTM B462 Alloy 20 Lap Joint Flanges
ASTM B462 Alloy 20 Lap Joint Flanges
ASTM B462 Alloy 20 Long Weld Neck Flanges
ASTM B462 Alloy 20 Long Weld Neck Flanges
ASTM B462 Alloy 20 Plate Flanges
ASTM B462 Alloy 20 Plate Flanges
ASTM B462 Alloy 20 Reducing Flanges
ASTM B462 Alloy 20 Reducing Flanges
ASTM B462 Alloy 20 Ring Type Joint Flanges
ASTM B462 Alloy 20 Ring Type Joint Flanges
ASTM B462 Alloy 20 Slip On Flanges
ASTM B462 Alloy 20 Slip On Flanges
ASTM B462 Alloy 20 Socket Weld Flanges
ASTM B462 Alloy 20 Socket Weld Flanges
ASTM B462 Alloy 20 Spectacle Blind Flanges
ASTM B462 Alloy 20 Spectacle Blind Flanges
ASTM B462 Alloy 20 Threaded _ Screwed Flanges
ASTM B462 Alloy 20 Threaded _ Screwed Flanges
ASTM B462 Alloy 20 Tongue & Groove Flanges
ASTM B462 Alloy 20 Tongue & Groove Flanges
ASTM B462 Alloy 20 Weld Neck Flanges
ASTM B462 Alloy 20 Weld Neck Flanges

Application Industries of Alloy 20 Flange

Mixing Tank
Pharmaceuticals
Pickling Racks
Chemical and Allied Industries
Explosives
Valves
SO2 Scrubbers and Other Severe Environments
Heat Exchangers
Petroleum
Food and Dye Production
Heat Exchangers

2.4660 Alloy 20 Flange Price List

Product Description Price in INR Price in USD Price in UAE Dirham
Stainless Steel Alloy 20 Flanges – DN 15 (Flange, SW, ANSI 150#) ₹1,422 $18.75 68.88 AED

Note: Prices are estimated market averages and change daily based on raw material costs and order specifications.

Frequently Asked Questions ( FAQ)

What are Alloy 20 Flanges?

Alloy 20 Flanges are pipe connection components used in corrosive and acidic service environments.

Are Alloy 20 Flanges corrosion-resistant?

Yes, they offer excellent resistance to sulfuric acid, chlorides, and aggressive chemicals.

What industries use Alloy 20 Flanges?

They are widely used in chemical processing, oil and gas, power plants, water treatment, food processing, and pulp & paper industries.

Can Alloy 20 Flanges withstand high temperatures?

Yes, Alloy 20 Flanges perform well under elevated temperatures and pressure conditions.

How do you choose the right Alloy 20 Flange for your application?

The selection of the right alloy 20 flanges depends on pipe size, pressure class, temperature, flange type, and service conditions.

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