Hastealloy

BMI supplies a comprehensive range of HASTELLOY Nickel–Molybdenum Alloys designed for exceptional resistance to strong oxidizing and reducing agents. These alloys perform reliably in some of the world’s most corrosive environments — including hot concentrated acids, chlorides, and wet oxidation systems.

HASTELLOY alloys are widely used in chemical processing, pollution control, marine, pulp & paper, and pharmaceutical industries, where long-term resistance to uniform, pitting, and stress corrosion cracking is critical.

All products are manufactured to international standards and sourced from certified global mills, ensuring consistent mechanical integrity, traceability, and performance.

SPECIFICATIONS FOR EVERY REQUIREMENT.

GRADES

HASTELLOY C-22 (UNS N06022) – Outstanding resistance to oxidizing and reducing environments, including wet chlorine and nitric acid.
HASTELLOY C-276 (UNS N10276) – Excellent resistance to strong oxidizers, chlorides, and acidic media such as ferric and cupric chlorides.
HASTELLOY B-2 (UNS N10665) – Superior resistance to hydrochloric acid and strong reducing conditions.
HASTELLOY C-4 (UNS N06455) – High thermal stability and resistance to oxidizing media at elevated temperatures.

Specialty grades available upon request.

PRODUCT RANGE

Sheets, Plates, and Coils
Seamless and Welded Pipes & Tubes
Round Bars, Rods, and Wires
Pipe Fittings (Elbows, Tees, Reducers)
Flanges (Weld Neck, Blind, Slip-On, Threaded)
Fasteners, Valves, and Custom Machined Components

STANDARDS

ASTM: ASTM B574 (Bars, Rods, Wire)

ASTM B575 (Sheets, Plates, Strips)

ASTM B619 / B622 (Seamless / Welded Pipes & Tubes)

ASTM B626 (Welded Tubes)

ASTM B366 (Pipe Fittings)

ASTM B564 (Forged Flanges)

ASME: ASME SB575 / SB622 / SB564ASME equivalents

EN / DIN: 2.4602 (C-22), 2.4819 (C-276), 2.4617 (B-2)

SIZE RANGE

Pipes & Tubes: ½” NB to 8” NB
Sheets, Plates & Coils: Thickness 0.5 mm to 50 mm
Bars & Rods: 3 mm to 200 mm diameter
Flanges & Fittings: Up to 24” NB
Fasteners & Components: Bolts, nuts, studs, custom machined parts Specific Dimensions are available upon request

TYPICAL MECHANICAL PROPERTIES

Tensile Strength: 760 MPa for C-22; 785 MPa for C-276; 760 MPa for B-2

Yield Strength (0.2%): 350 MPa for C-22; 355 MPa for C-276; 310 MPa for B-2

Elongation: 45% for C-22; 40% for C-276 and B-2

Density: 8.69 g/cm³ for C-22; 8.89 g/cm³ for C-276; 9.22 g/cm³ for B-2

Melting Range: 1320–1370°C for C-22; 1325–1370°C for C-276; 1330–1380°C for B-2

Hardening: Cold Work Only

MAKE

We source and stock products regularly from:

Special Metals Corporation
ThyssenKrupp Materials Processing
Haynes International Inc.
ATI Specialty Alloys
VDM Metals
Mishra Dhatu Nigam Limited

Specific Makes are available upon request

MTC is always provided when you choose BMI

CHEMICAL COMPOSITION

Element HASTELLOY C-22 HASTELLOY C-276 HASTELLOY B-2 Nickel (Ni) Balance (~56%) Balance (~57%) Balance (~70%) Chromium (Cr) 20.0–22.5 14.5–16.5 0.4–1.0 Molybdenum (Mo) 12.5–14.5 15.0–17.0 26.0–30.0 Iron (Fe) 2.0–6.0 4.0–7.0 2.0 max Tungsten (W) 2.5–3.5 3.0–4.5 Cobalt (Co) 2.5 max 2.5 max 1.0 max Manganese (Mn) 0.5 max 1.0 max 1.0 max Silicon (Si) 0.08 max 0.08 max 0.10 max Carbon (C) 0.015 max 0.010 max 0.02 max Vanadium (V) — — — Other Elements Trace Trace Trace

INDUSTRY APPLICATIONS.

Chemical & Petrochemical: Reactors, evaporators, heat exchangers, acid piping
Pollution Control & Scrubbers: Absorbers, ducting, fans, and chimneys
Marine & Offshore: Seawater handling and desalination units
Pulp & Paper: Bleaching plants and digesters
Pharmaceutical & Biotech: Reactor vessels and process piping
Nuclear & Power Generation: Heat exchangers and fuel reprocessing units
Gas Processing: Sour gas systems, stripper columns, and piping