Hastelloy B2 Pipe Fittings and Buttweld Fittings Exporter

Mumbadevi Steel India (MSI) is one of the leading suppliers of Hastelloy B2 Pipe Fittings. We have exported ASTM B366 UNS N10665 Fittings to more than 70 countries worldwide.
Other Names: ASTM B366 UNS N10665, Hastelloy Pipe Fittings, Hastelloy Fittings, Hastelloy Buttweld Fittings, ASTM B366 Fittings
Material: Hastelloy B2
Brand: Mumbadevi Steel India (MSI)
Manufacturer: Mumbadevi Steel India (MSI)
Rating: 4.4/5 based on 77 customer reviews

ASTM B366 UNS N10665 • Hastelloy Fittings • Hastelloy B2 Buttweld Fittings • Hastelloy B2 Pipe Fittings Supplier

Mumbadevi Steel India (MSI) is India’s prominent manufacturer, exporter and suppliers of Hastelloy B2 Pipe Fittings. Our product range includes ASTM B366 UNS N10665 Fittings in various sizes and dimensions. Over a decade of progress have consistently made us realize that more than Products, it is understanding the client's requirement and giving maximum services to the customer is what makes us stand apart from others. Ourself contained unit with Forging, Welding, Machining, Heat treatment and Facilities for physical & Chemical testing, enables us to meet strict international quality standards.

A fitting is used in pipe systems to connect straight pipe or tubing sections, adapt to different sizes or shapes and for other purposes, such as regulating fluid flow. Pipe Fittings are used in a piping system to change direction or function, which is mechanically joined to the system. The simplest way to achieve this is to bend the pipe in the direction required, but this process will stretch and thin the outer wall of the pipe whilst thickening and wrinkling, the inner wall of the pipe. This results in flow resistance and accelerated wall erosion. Hastelloy B Pipe Fittings are manufactured and finished according to international standards ASTM B366 UNS N10665, ASME B16.9, ANSI B16.9, ASME B16.28, ANSI B16.28, ANSI B16.25, MSS-SP-43 & MSS SP-75. Our range of Hastelloy B2 buttweld fittings includes Elbows, Tees, Cross, Cap, Reducers, Collars, Bends in all sizes and forms.

Hastelloy Elbow Fittings—Hastelloy Pipe Elbows are installed between two lengths of pipe or tube allowing a change of direction by 180°, 90° or 45°. The ends are machined for Butt Welding when the two ends differ in size, it is called a Reducer or, Reducing Elbow. Pipe Fitting Elbows are available as 180° elbows, 90° elbows or 45° elbows in 1D, 1.5D, 2D, 3D, 5D, 6D, 8D, 10D radius as short and long radius elbows. All ASTM B366 elbows are mandrel formed to ensure consistency.

Hastelloy Return Bend Fittings— Bends are similar to elbows with different bending radiuses. ASTM B366 Bends are supplied as long radius return bends and short radius return bends.

Hastelloy Pipe Cross Fittings—Pipe Fitting Cross are used in several industries for providing the leak free and torque free sealing in any piping or tubing connection known for their close tolerances.

Hastelloy Cap Pipe Fittings—The function of a Pipe Cap is to block off the end of a line in an industrial piping system. Pipe Cap is fitted by placing the end cap over the open line and welding around the joint.

Hastelloy Tee Pipe Fittings—Pipe Fitting Tee is widely used in industrial piping systems to merge or divide fluids and do not require special tubing preparation before installation. Tees are available in different threading specifications and are engineered to close tolerances and precise dimensions.

Hastelloy Stub Ends Pipe Fittings—Stub Ends are installed in pairs and mated together with two Lap-Joint Flanges. The surface of the stub end has a phonographic serrated gasket surface which prevents leakage at the joint. Using stub ends allows sections of the line to be opened for cleaning, inspection or quick replacement, etc, without the need to re-weld.

Hastelloy Pipe Reducer Fittings— Reducers are supplied as Eccentric Reducer, Concentric Reducer and Conical Reducer or Bell Shaped Reducer.

Hastelloy Pipe Coupling— Couplings are used to merge two equal ends in a piping system. Couplings are classified as half-coupling and full-coupling.

Hastelloy Pipe Fittings manufactured by Mumbadevi Steel India (MSI) are designed for high performance under extreme environments. Moreover, our Pipe Fittings have wall thickness designed with ample erosion and corrosion allowance .We stock a full range of Hastelloy B2 pipe fittings in sizes 1/8” NB to 24" NB in SCH5, SCH10, SCH40, SCH80, SCH160, SCH XS, SCH XXS. We have a huge inventory of buttweld fittings in various forms such as End Cap, Stub Ends, Pipe Nipple, Equal Tee, Unequal Tee, Concentric Reducer, Eccentric Reducer, Collar, Long Radius Elbow, Short Radius Elbow, Return Bend, Elbow, Coupling. All our products are tested under expert supervision and test documents such as Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non-Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports are provided. Pipe Fittings have a variety of applications in Oil, Gas, Filtration, Refrigeration, Refining, Petrochemical, and Offshore Industries. We have been exporting buttweld fittings in many countries such as Australia, Saudi Arabia, South Africa, Iraq, Iran, UAE, USA, Russia, Germany, Thailand, etc.

  • Pipe Fittings Specification: ASTM B366 UNS N10665, ASME SB366 UNS N10665 & En
  • Dimenison Standards: ASME B16.9, ANSI B16.9, ASME B16.28, ANSI B16.28, ANSI B16.25, MSS-SP-43, MSS-SP-75
  • Thickness Range: 2.77mm to 59.64mm
  • Outside Diameter(OD): 2.77mm to 59.64mm
  • Type: Seamless Pipe Fittings, Welded Pipe Fittings
  • Forms: Hastelloy B2 Long Radius Elbow, Hastelloy B2 Short Radius Elbow, Hastelloy B2 Long Radius Return Bend, Hastelloy B2 Short Radius Return Bend, Hastelloy B2 Reducing Elbow, Hastelloy B2 End Cap, Hastelloy B2 Stub Ends, Hastelloy B2 Pipe Nipple, Hastelloy B2 Equal Tee, Hastelloy B2 Unequal Tee, Hastelloy B2 Pipe Cross, Hastelloy B2 Reducing Cross, Hastelloy B2 Cross, Hastelloy B2 Concentric Reducer, Hastelloy B2 Eccentric Reducer, Hastelloy B2 pipe Collar, Hastelloy B2 Pipe Coupling
  • Size Range: 1/8” NB to 24" NB in SCH 5, SCH10, SCH40, SCH80, SCH160, SCH XS, SCH XXS
  • Bending Radius: 1D, 1.5D, 2D, 3D, 5D, 6D, 8D, 10D
  • Origin: Indian Origin, European Origin, Japanese Origin
  • Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
  • Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

Hastelloy Fittings Sizes in Stock

Forms of Pipe Fttings Pipe Fitting Size Range Schedules of Butt weld fittings Dimension Standards
Seamless Pipe Fittings Welded Pipe Fittings
Hastelloy Return Bends 1/8” NB to 8" NB SCH 5, SCH 5S, SCH 10, SCH 10S, SCH 20, SCH 30, SCH 40S, SCH 40, SCH STD, SCH 60, SCH 80s, SCH 100, SCH 120, SCH XS, SCH XXS, SCH 160, upto 50mm in case of Welded Fittings ASME B16.9, ANSI B16.9, ASME B16.28, ANSI B16.28, ANSI B16.25, MS SP 75
Hastelloy Tees 1/8” NB to 24" NB Upto 42" NB
Hastelloy Reducers 1/8” NB to 24" NB Upto 42" NB
Hastelloy End Caps 1/8” NB to 24" NB Upto 42" NB
Hastelloy Swage Nipple 2 1/16” to 30”
Hastelloy Elbows — 45, 90 & 180 Degree 1/8” NB to 24" NB Upto 42" NB
Hastelloy Cross 1/8” NB to 8" NB

Forms of ASTM B366 Fittings in Stock

45° and 90° Long Radius Elbows

Long Radius Pipe Elbows

ASTM B366 Fittings — Hastelloy B2 Long Radius Elbows up to 24" NB in smls and 42" NB in Welded Range

45° and 90° Short Radius Elbows

Short Radius Pipe Elbows

Hastelloy B2 Short Radius Elbows As Per ASTM B366 Available up to 24" NB in smls and 42" NB in welded Range

Long Radius Return Bends

Long Radius Return Bends

Hastelloy B2 Long Radius Return Bend Available up to 24" NB in smls and 42" NB in welded Range

Short Radius Return Bends

Short Radius Return Bends

Hastelloy B2 Short Radius Return Bend Available up to 24" NB in smls and 42" NB in welded Range

Reducing Elbows Pipe Fittings

Reducing Elbow Pipe Fittings

Hastelloy B2 Reducing Elbows Available in 1/8” NB to 24" NB Range As Per ASTM B366

End Cap Pipe Fittings

Pipe Caps

Hastelloy B2 Pipe Caps Available up to 24" NB in smls and 42" NB in welded Range

Stub Ends Pipe Fittings

Stub Ends — Pipe Fittings

Hastelloy B2 Pipe Fittings Stub Ends Available up to 24" NB in smls and 42" NB in welded Range

Pipe Fitting Nipple

Pipe Fitting Nipple

Hastelloy B2 Nipple Available As Per ASTM B366 Standard

Pipe Fitting Equal Tee

Equal Tee

Hastelloy B2 Equal Tee — Buttweld Fittings ASME SB366 UNS N10655

Pipe Fitting Unequal Tee

UnEqual Tee

Hastelloy B2 Unequal Tee — Buttweld Fittings Manufacturer and Supplier

Pipe Cross Fittings

Pipe Fittings Cross

ASTM B366 UNS N10665 Pipe Fittings Hastelloy B2 Cross Supplier

Concentric Reducer and Eccentric Reducer

Concentric, Eccentric Reducer

Hastelloy B2 Concentric, Eccentric Reducer Buttweld Fittings in from SCH 5 to SCH XXS

Collar Pipe Fittings

Collar Pipe Fittings

Hastelloy B2 Collar Pipe Fitting ASTM B366

Coupling Pipe Fittings

Coupling — Fittings

ASTM B366 UNS N10665 — Hastelloy B2 Coupling Available up to 24" NB in smls and 42" NB in welded Range

  • Chemical Properties
  • Mechanical Properties
  • Physical Properties
  • C P Mn Fe S Si Cr Ni Co Mo
    MIN - - - - - - - Bal - 26.000
    MAX 0.020 0.040 1.000 2.000 0.030 0.100 1.000 1.000 30.000
  • Yield Strength
    0.2% Proof
    Tensile strength
    (% in 50mm)
    MIN 396 914 55.00  
    MAX       98
  • Density 0.333 lb/in.3
    Melting Range 2430°F to 2520°F
    Specific Heat 0.090Btu/lb•°F
    Permeability ≤1.001(200 Oersted)
    Elastic Modulus 31.4 x 106,ps
    Coefficient of Thermal Expansion 6.0 µin./in.•°F
    Thermal Conductivity 64 Btu/ft•h•°F

Properties of Hastelloy B2 alloy

Hastelloy B2 Cold Forming

Cold forming process plays a very important role in the desired product formation.The process involves rolling, pressing forging of the metal with desired procedure. Cold forming is always done with precaution and under expertise with a clean environment. It increases the strength of the metal and gives hardness a new level.

Hastelloy B2 Hot Forming

While performing hot forming process in a Hastelloy, the temperature should be maintained with the furnace.The preheating of the furnace should be done so as to make the shape of the metal proper.The size and thickness of the metal play a very important role while hot forming so the metal can have the proper size.Re-heating is necessary to maintain the correct hot forming temperature, and dies of the metal should be heated to avoid extreme chilling of the surfaces.

Hastelloy B2 Machining

When Machining Hastelloy B2 the material gets work-harden quickly, produce high heat during cutting weld to the cutting tool surface and offer high resistance to metal removal because of their high shear strengths. The machine should be rigid and overpowered as much as possible.The workpiece and tool should be held rigid. The tools used should be sharp while machining. The machine used, should be heavy, constant, feeds to maintain the positive cutting action. If feed slows and the tool dwells in the cut, work hardening occurs, tool life deteriorates and close tolerances are impossible.

Hastelloy B2 Welding

Hastelloy B2 has a good welding property. The welding process is done by methods such as common arc welding process, plasma arc welding (PAW), resistance spot welding (RSW), laser beam welding (LBW), and electron beam welding (EBW) are used. The pitting corrosion resistance of the metal can be welded to be reduced due to micro-segregation of main molybdenum during solidification.

Hastelloy B2 Heat Treatment

Before heat treatment, make absolutely sure that grease, graphite, and other foreign materials are removed from all surfaces. The annealing procedure has been designed to place the material in the optimum condition with respect to mechanical properties and corrosion resistance. Annealing is often performed after cold working operations to restore ductility and lower the yield and ultimate tensile properties. In general, the only heat treatment that is acceptable for these alloys is a full solution anneal.

Services We Offer


Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.

Quality Assurance

Hastelloy Buttweld Fittings are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.

Material Testing

PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.

Packing and Delivery

The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.

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