Grade12 Titanium Bar And Rod

Titanium alloy grade 12 is a high corrosion resistant alloy containing small additions of nickel and molybdenum, which enhance corrosion resistance and increase the strength of the alloy to give better mechanical properties than the commercially pure grades. It is used in mildly reducing or fluctuating conditions. In particular, it is used instead of the commercial purity grades (e.g.grade 2) for better resistance to crevice corrosion in hot brines, and where the extra strength allows the use of lighter sections.

At room temperature, it is an alpha alloy and may contain minor amounts of beta phase. It transforms to beta phase at 890°C ± 15°C

Titanium is reactive, and has a very high affinity for oxygen, which forms a skin of very stable and highly adherent oxide. The skin gives excellent corrosion resistance, despite the reactivity of the metal. The oxide layer forms spontaneously and on exposure to the atmosphere. However, when new parent metal is exposed to anhydrous conditions or in the absence of air, rapid corrosion may occur. Care should also be taken if titanium is to operate in contact with hydrogen, as hydrogen embrittlement from hydride formation can increase strength, with loss of ductility.

Availability of Titanium Alloy

Austral Wright Metals can supply titanium alloy 12 as plate, sheet and strip, rod and bar, seamless and welded pipe, weld fittings, seamless and welded tube, forging billet and forgings.

Pressure Vessels

AS1210 & ASME Boiler & Pressure Vessel Code pre-qualify Titanium alloy 12 for use in pressure vessels up to 300°C.

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