What is Alloy 20 best known for?

It was specifically developed to resist sulfuric acid corrosion across a wide range of concentrations and temperatures, and remains a benchmark material for that duty.

Does Sakshi Forge provide Material Test Certificates (MTC) for the Alloy 20 Flange?

Yes, MTC as per EN 10204 3.1 is provided with every dispatch along with PMI test reports.

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Alloy 20 Flange - Sulfuric Acid Resistant Nickel-Iron-Chromium Flange | Sakshi Forge

Quick Summary (AI Overview)

Alloy 20 Flange (UNS N08020 / ASTM B462): Purpose-engineered nickel-iron-chromium flange offering benchmark resistance to sulfuric acid and acid pickling systems.

Alloy 20 (UNS N08020) is a nickel-iron-chromium alloy with molybdenum and copper additions, engineered specifically for outstanding resistance to sulfuric acid across a broad range of concentrations and temperatures.

Key Features

Purpose-engineered for sulfuric acid resistance

Molybdenum and copper alloying additions

Good resistance to chloride pitting

Stabilized against sensitization during welding

Custom sizes, classes and face finishes

Technical Specifications

Product	Alloy 20 Flange
Standard	ASME B16.5
UNS No	N08020
Size Range	1/2" - 24" NB
Pressure Class	150 / 300 / 600 / 900 LBS
Flange Types	Weld Neck, Slip-On, Blind, Socket Weld
Face Type	RF / RTJ
Base Spec	ASTM B462
Available Grades	UNS N08020

Target Application Industries

Chemical ProcessingFertilizer ProductionPickling & Acid Plants

Applications & Service Areas

Sulfuric Acid PipingPickling & Etching Systems

Quick Quotation

Request Price & Specs

MTC EN 10204 3.1 & Inspection provided

Pan-India & global sea-freight dispatch

Custom dimensions/drawings supported

Response time: Less than 2 hours

Frequently Asked Questions

Read commonly asked questions about specifying and ordering Alloy 20 Flange.

Available in UNS N08020, size 1/2"-24" NB, pressure class 150-900 LBS, in Weld Neck, Slip-On, Blind and Socket Weld types per ASTM B462.

Partner with Sakshi Forge for Reliable Industrial Steel Solutions

Delivering precision-engineered flanges, pipes, and forged steel components designed for strength, durability, and performance in critical high-pressure industrial applications.

Alloy 20 Flange - Sulfuric Acid Resistant Nickel-Iron-Chromium Flange | Sakshi Forge

Key Features

Technical Specifications

Target Application Industries

Applications & Service Areas

Request Price & Specs

Frequently Asked Questions

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Partner with Sakshi Forge for Reliable Industrial Steel Solutions