Nickel Alloy Flanges Supplier | ASTM B564 — Alloy 200/400/600/625/825

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Nickel Alloy Flanges Supplier

Nickel Alloy Flanges ASTM B564

Amardeep Steel is a leading supplier and exporter of nickel alloy flange in Mumbai, India, having a rich experience of more than 30 years in the field of supplying these flanges in various chemical, pharmaceutical, offshore and petrochemical industries in various countries across the globe. Manufactured to the ASTM B564 and ASME SB564 standards, our flanges come in the entire nickel family (Nickel Alloy 200/201, Monel 400, Inconel 600/625, Incoloy 825) ranging in size from ½" up to 60" and in pressure ratings from 150 LBS to 2500 LBS. Our flanges are third-party tested, IBR approved and shipped with complete material traceability documentation, as part of our complete Nickel Alloy Steel Products range. With our own cutting, forging and heat treatment facilities we are able to offer faster lead times than most intermediaries, and we export to more than 45 countries. Amardeep is the preferred choice for engineers who require both Stainless Steel Flanges and exotic alloy flanges from one source.

ASTM B564 Specification Overview

ASTM B564 is the governing standard for nickel alloy flanges produced by hot or cold forging. The ASME equivalent used in pressure vessel and piping work is SB564. Both cover the same alloy family and mechanical requirements.

StandardASTM B564
ASTM / ASME EquivalentASTM B564 / ASME SB564
ASME EquivalentASME SB564
Product FormForged flanges, fittings, and valves
Covered UNS GradesN02200, N02201, N04400, N06600, N06625, N08825, N10276, N06022, and others
Dimensional StandardASME B16.5 (up to 24" NB), ASME B16.47 (26" to 60" NB)
Pressure Classes150, 300, 600, 900, 1500, 2500 LBS
NB Size Range1/2" NB to 60" NB
Heat TreatmentAs required per alloy and grade
TestingHydrostatic, radiography, PMI, hardness, chemical analysis

Chemical Composition of ASTM B564 Nickel Alloy Grades

GradeUNS No.Ni (%)Cu (%)Cr (%)Mo (%)Fe (%)C (max %)
Nickel 200N0220099.0 min0.25 max--0.40 max0.15
Nickel 201N0220199.0 min0.25 max--0.40 max0.02
Monel 400N0440063.0 min28.0 - 34.0--2.50 max0.30
Inconel 600N0660072.0 min0.50 max14.0 - 17.0-6.0 - 10.00.15
Inconel 625N0662558.0 min-20.0 - 23.08.0 - 10.05.0 max0.10
Incoloy 825N0882538.0 - 46.01.5 - 3.019.5 - 23.52.5 - 3.522.0 min0.05

Mechanical Properties of ASTM B564 Nickel Alloy Flanges

GradeUNS No.Tensile Strength (min)Yield Strength 0.2% (min)Elongation (min %)Hardness (HRB max)
Nickel 200N02200380 MPa / 55 ksi105 MPa / 15 ksi35-
Nickel 201N02201345 MPa / 50 ksi105 MPa / 15 ksi40-
Monel 400N04400483 MPa / 70 ksi172 MPa / 25 ksi3580
Inconel 600N06600550 MPa / 80 ksi241 MPa / 35 ksi30-
Inconel 625N06625827 MPa / 120 ksi414 MPa / 60 ksi30-
Incoloy 825N08825586 MPa / 85 ksi241 MPa / 35 ksi30-

Nickel Alloy Flanges Types

Pure nickel rtj flange

Pure nickel rtj flange

Nickel slip on flange

Nickel slip on flange

Nickel alloy weld neck flange

Nickel alloy weld neck flange

Ni socket weld flange

Ni socket weld flange

High nickel blind flange

High nickel blind flange

High nickel alloy forged flange

High nickel alloy forged flange

Need a Quote for ASTM B564 Nickel Alloy Flanges?

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Nickel Alloy Flange Grades

Each grade within the ASTM B564 standard is engineered for a specific class of corrosion challenge. Select the right UNS grade for your process environment using the cards below, or jump to a dedicated grade page for full specifications.

Nickel 200

Commercially pure nickel. Excellent resistance to caustic alkalis, fluorine, and many reducing media. Ideal for food processing and chemical plant service below 315°C.

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Nickel 201

Low-carbon variant of Nickel 200 with carbon max 0.02%. Preferred for elevated-temperature service above 315°C where Nickel 200 risks intergranular cracking in caustic environments.

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Monel 400

Nickel-copper alloy with outstanding resistance to hydrofluoric acid, seawater, and reducing acids. The preferred flange material for marine, desalination, and acid pickling environments.

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Inconel 600

Nickel-chromium alloy designed for high-temperature oxidising service up to 1177°C. Used in heat treat furnaces, chemical processing, and nuclear reactor steam generators.

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Inconel 625

High-strength, high-temperature nickel-chromium-molybdenum alloy. Exceptional resistance to pitting, crevice corrosion, and seawater. Widely used in offshore and aerospace piping systems.

View Inconel 625 Flanges →

Incoloy 825

Austenitic nickel-iron-chromium alloy stabilised with titanium. Resistant to both sulfuric and phosphoric acids, plus pitting and stress-corrosion cracking in chloride-containing environments.

View Incoloy Products →

Applications of Nickel Alloy Flanges

The combination of corrosion resistance, elevated-temperature strength, and pressure-retaining capacity makes ASTM B564 nickel alloy flanges indispensable in the following industries. For complementary exotic flange materials, also see our Hastelloy Flanges and Inconel Flanges ranges.

Testing, Certification, and Mill Documentation

Every nickel alloy flange supplied by Amardeep Steel Centre ships with complete third-party-verified documentation. Our quality management is certified to ISO 9001:2015, and all material certificates are traceable to heat and lot numbers.

Test TypeStandard / MethodApplies To
Chemical AnalysisOES / Wet Chemical per ASTM B564All grades
Mechanical TestingTensile, Yield, Elongation - ASTM E8All grades
HardnessBrinell / Rockwell per ASTM E18All grades
PMI (Positive Material Identification)XRF AnalyzerAll exotic alloys
Hydrostatic Test1.5x design pressureOn request
Radiography (RT)ASME V Article 2Critical service, on request
Intergranular Corrosion TestASTM A262 Practice EAustenitic alloys on request
Dye Penetrant (PT)ASME V Article 6On request

Ready to Source ASTM B564 Nickel Alloy Flanges?

Our technical sales team can assist with grade selection, ASME B16.5 dimensional data, and mill test certification requirements. Shipments to over 45 countries.

Frequently Asked Questions

Which nickel alloy flange grade is best for sulfuric acid service?

Incoloy 825 (UNS N08825) is generally the preferred grade for sulfuric acid service because its nickel, chromium, molybdenum, and copper additions provide resistance to both dilute and concentrated sulfuric acid concentrations. Monel 400 is preferred for hydrofluoric acid and reducing acid conditions. Always confirm with a corrosion engineer based on your specific temperature, concentration, and contaminants.

What is the difference between Nickel 200 and Nickel 201 flanges?

Both are commercially pure nickel with nearly identical corrosion resistance. The difference is carbon content: Nickel 200 allows up to 0.15% carbon, while Nickel 201 is low-carbon with a maximum of 0.02%. This matters for service temperatures above 315°C (600°F), where graphite precipitation at grain boundaries in Nickel 200 can cause embrittlement. Nickel 201 flanges are therefore specified for elevated-temperature caustic and alkali service.

Do you supply ASTM B564 flanges with EN 10204 3.1 certificates?

Yes. All Amardeep Steel Centre nickel alloy flanges are available with EN 10204 Type 3.1 or 3.2 material test certificates. Third-party inspection by agencies including Bureau Veritas, SGS, Lloyds, TUV, and DNV is available on request. PMI testing with XRF analyzer is standard for all exotic alloy shipments.

What flange types are available in ASTM B564 nickel alloys?

The complete range of ASME B16.5 flange types is available: weld neck (WNRF), slip-on (SORF), blind (BLRF), socket weld (SWRF), threaded, orifice, spectacle blind, reducing, lap joint, long weld neck, ring type joint (RTJ), tongue and groove, and flat face, all in ASTM B564 nickel alloy grades to pressure classes 150 through 2500 LBS, in sizes 1/2 inch NB through 60 inch NB.

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