Tantalum bolts and fastener

Tantalum 2.5% tungsten (Ta-2.5%W) and tantalum 10% tungsten (Ta-10%W).


Physical Properties

·         Density 16.6 g/cc

·         Melting Point 3290 K, 2996°C, 5462°F

·         Boiling Point 5731 K, 6100°C, 9856°F

·         Coefficient of Thermal Expansion (20°C) 6.5 x 10(-6) / °C

·         Electrical Resistivity (20°C) 13.5 microhms-cm

·         Electrical Conductivity 13% IACS

·         Specific Heat .036 cal/g/°C


And we can offer other bolts and fastener:

Hastelloy C276 Alloy

Hastelloy® fasteners, such as Hastelloy C276 fasteners, are made from nickel-molybdenum-chromium alloy that is generally considered a versatile highly corrosion resistant alloy. Hastelloy fasteners have excellent corrosion resistance in both oxidizing and reducing media which makes it well suited for a variety of strong corrosive applications. Hastelloy fasteners also have exceptional resistance to both sulfuric acid and hydrochloric acid.

Inconel bolts and fattener

Inconel® fasteners, like Inconel 600, 601, 625, 686, 718 & 725 fasteners, are a family of nickel-chromium-molybdenum alloys used for their high strength at elevated temperatures and good corrosion resistance. Because of its high thermal stability, Inconel can be used in service temperatures ranging from cryogenic to 2200°F (982°C). The high alloy content of Inconel fasteners enable it to withstand a wide variety of severe corrosive environments. In mild environments, such as the atmosphere, sea water, neutral salts, and alkaline media, there is almost no attack to Inconel fasteners. In more severe corrosive environments the combination of nickel and chromium provides resistance to oxidizing chemicals, whereas the high nickel and molybdenum contents supply resistance to nonoxidizing environments

Molybdenum fasteners

Molybdenum fasteners possesses a very high melting point of 2620°C, a low coefficient of thermal expansion and a high level of thermal conductivity. Because molybdenum fasteners have the ability to withstand extremely high temperatures without changing shape, expanding or softening significantly, they are ideal for high strength / high temperature applications that are shielded from oxygen. Exposing molybdenum fastener to oxygen above 600°C will cause them to readily oxidize.


Titanium fasteners

Titanium fasteners are best known for being strong, lightweight and corrosion resistant. One property that stands out when compared to other metal fasteners is that titanium fasteners have the highest strength-to-weight ratio with a density of 4.51 g /cm3. As an example, titanium grade 5 is 4 times stronger than 316 stainless steel at nearly half the weight. This makes titanium fasteners ideal for applications that require both lightness of weight and excellent strength such as oil & gas (down-hole), military and sporting goods. 




Zirconium fasteners

Zirconium fasteners are typcially used in corrosive services too severe for stainless steels, nickel alloys, and titanium or where a significant improvement in service life is required. Zirconium fasteners have outstanding corrosion resistance to hydrochloric acid, sulfuric acid, organic acids, nitric acid, acetic acid and alkaline media such as sodium hydroxide. In these extremely corrosive media, zirconium fasteners are only surpassed by tantalum fasteners.