Hastelloy B-2 & B-3 Alloy Fittings – Buttweld Elbows, Tees, Reducers, Flanges & Forged Fittings, Olets – ASTM B366/B564 Compliant | Worldwide Delivery. We are a trusted and ISO-certified manufacturer, stockist, and exporter of Hastelloy B-2 and B-3 fittings, flanges, forged components, and outlet fittings. These high-performance nickel-molybdenum alloys are specially designed for use in aggressive reducing environments, offering superior corrosion resistance. Our product range includes buttweld fittings, socket weld/threaded forged fittings, and flanges available in various pressure classes. We cater to critical applications in chemical processing, pharmaceuticals, agrochemicals, and marine industries with timely global deliveries. Hastelloy B-2 (UNS N10665) and Hastelloy B-3 (UNS N10675) are known for their exceptional resistance to hydrochloric acid and other strong reducing agents. While B-2 offers excellent corrosion resistance, B-3 improves upon it by offering enhanced thermal stability and better resistance to pitting and stress corrosion cracking. These alloys are manufactured in accordance with international standards such as ASTM B366 (fittings), ASTM B564 (flanges), ASME B16.5, B16.9, and B16.11. Both materials provide reliable performance even under extreme chemical and thermal exposure. We offer a full range of buttweld fittings including 45°/90° elbows, tees, concentric and eccentric reducers, and end caps. Our forged fittings include socket weld and threaded types such as elbows, couplings, unions, and tees available in Class 2000, 3000 & 6000. We also stock flanges like WNRF, SORF, BLRF, SWRF, and threaded flanges, available in pressure classes from 150# to 2500#. In addition, weldolets, sockolets, and threadolets are offered for specialized branch connections. These components are widely used in acid pickling, reactors, heat exchangers, evaporators, and pipework in chemical plants. All Hastelloy B-2 and B-3 products undergo stringent quality control processes including PMI, intergranular corrosion testing, ultrasonic examination, and dimensional accuracy checks. We support third-party inspections (TPI) from agencies like TUV, Lloyd’s,…