Why is Inconel 690 preferred for nuclear steam generators?

Its high chromium content gives superior resistance to stress corrosion cracking in high-purity, high-temperature water, addressing failure modes seen in earlier nickel alloys.

Does Sakshi Forge provide Material Test Certificates (MTC) for the Inconel 690 Flange?

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

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Inconel 690 Flange - High Chromium Nuclear-Grade Superalloy Flange | Sakshi Forge

Quick Summary (AI Overview)

Inconel 690 Flange (UNS N06690 / ASTM B564): High-chromium (~30%) nuclear-grade superalloy flange offering supreme SCC resistance in high-purity water. Class 150-1500.

Inconel 690 (UNS N06690) has elevated chromium content for superior resistance to stress corrosion cracking in high-purity and high-temperature water, making it a preferred material for nuclear steam generator applications.

Key Features

High chromium content (~30%)

Excellent resistance to stress corrosion cracking

Strong performance in high-purity water at high temperature

Good general corrosion resistance

Custom sizes, classes and face finishes

Technical Specifications

Product	Inconel 690 Flange
Standard	ASME B16.5
UNS No	N06690
Size Range	1/2" - 20" NB
Pressure Class	150 / 300 / 600 / 900 / 1500 LBS
Flange Types	Weld Neck, Slip-On, Blind, Socket Weld
Face Type	RF / RTJ
Base Spec	ASTM B564
Available Grades	UNS N06690

Target Application Industries

Nuclear PowerPower GenerationChemical Processing

Applications & Service Areas

Nuclear Steam Generator PipingHigh Purity Water 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 Inconel 690 Flange.

Available in UNS N06690, size 1/2"-20" NB, pressure class 150-1500 LBS, in Weld Neck, Slip-On, Blind and Socket Weld types per ASTM B564.

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.

Inconel 690 Flange - High Chromium Nuclear-Grade Superalloy 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