Hastelloy B2 is a nickel-molybdenum alloy with outstanding resistance to reducing environments such as hydrogen chloride gas, sulfuric acid, acetic acid, and phosphoric acid. This alloy is particularly resistant to hydrochloric acid at all concentrations and temperatures. The Hastelloy B2 Pipes & Tubes are fabricated using this versatile alloy, making them highly resistant to pitting,... https://www.metcoresteel.com/hastelloy-b2-pipes-tubes-manufacturer-exporter-suppliers-stockists.html