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ASTM B408 Standards And Specifications

ASTM B408 Specification refers to Incoloy 800 Rod and Bar. It is in the form of Hot-Worked and Cold-Worked.

ASTM B408 Round Bar

Astm B408 Round Bar

ASTM B608 Round Bar is extremely resistant to corrosion, even in acidic environment. Alloy 800HT Rods is particularly useful for high-temperature equipment in the petrochemical industry because the alloy doesn't form the embrittling sigma phase after long time exposure at 1200 Degree F (649 Degree C).These Nickel 800 Round Bars are used for Heat exchangers, Pressure vessels, Dampers, Nitric acid catalyst supports, Reformer outlet pigtails and manifold, and more. ASTM B408 Round Bars are used for process piping, heat exchangers, heating-element sheathing, carburizing equipment, and nuclear steam-generator tubing etc.

Incoloy 800 Round Bar

Incoloy 800 Round Bars is a nickel-chromium alloy bar that contains supplemental amounts of columbium, iron, molybdenum, aluminum, and titanium. Incoloy 800 Round Bars have high strength properties, heat treatable, good corrosion resistance, formability and weldability. Incoloy 800 Round Bars is commonly used for valves, fasteners, tubing materials and mandrels. Incoloy 800 Round Bars has excellent cryogenic and heat ranges. Common uses of Incoloy 800 include deployment in gas turbines, subservice safety valves, aircraft engines, thrust reversers, and industrial fasteners.

ASTM B408 UNS N08800

ASTM B408 covers precipitation hardening bolting material (UNS N08800) and bolting components for high temperature service. Incoloy 800, AMS 5766 ASTM B408, UNS N08800 High Temperature (UNS N08800), Ni 52.5, Cr 19.0 Fe 18.5 Mo 3.0 Nb+Ta 3.6

Scope And Manufacturing

ASTM B408 specification covers UNS N08800 in the form of hot-worked and cold-worked round bar. Alloy UNS N08800 is normally employed in service temperatures up to and including 1100°F (593°C). The material shall be subjected to heat treatment, and its composition shall conform to the chemical requirements for nickel, chromium, iron, manganese, carbon, copper, silicon, sulfur, aluminum, titanium, columbium, molybdenum, niobium, tantalum, phosphorus, tungsten, cobalt, nitrogen, and boron. The material shall conform to mechanical property requirements for tensile strength, yield strength, and elongation.

Siddhagiri Metals and Tubes is one of the leading Manufacturers, Supplier and Exporters of high quality Inconel / Incoloy Bars. Inconel Bars, Rods, Round Bars are available in special alloys like Inconel 600, Inconel 601, Inconel 625, Incoloy 800, Incoloy 800, Incoloy 800H/ HT and Incoloy 825. All the products are manufactured as per international quality and safety standards. These Round bars have various applications in the industry. We offer Round Bars in different sizes, dimensions, specifications and standards as per client requirements.


ASTM B408 Specification refers to Incoloy 800 Round Bar. It is used in high temperature services.
Other Names : ASTM B408 Round Bar, ASTM B408 UNS N08800, Incoloy 800 Round Bar, Alloy 800 Round Bar
Material : Incoloy 800
Brand : Siddhagiri Metals and Tubes
Manufacturer : Siddhagiri Metals and Tubes
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