AISI 309Cb+Ta Stainless Steel Chemical Composition & Properties, Grades, Charts and Online Pdf

AISI 309Cb+Ta is well-known for its exceptional ability to resist some forms of corrosion and oxidation in high-temperature environments due to its being an austenitic type of stainless steel. The chemical composition of superalloy commonly contains as chromium, nickel - about 23% and 12%, respectively, with earlier small additions of columbium and tantalum, with their high-temperature stability and working level improving. This rating is better than the others regarding resistance to oxidation, carburization and thermal cycling, which allows its use in the most demanding environment such exhaust systems, petrochemical plants and heating treatment furnaces. As a result of the addition of tantalum and columbium to the steel, more grain boundary stability is promoted, that minimizes sensitization and corrosion susceptibility originating from the grain boundaries. The AISI 309Cb+Ta is highly regarded as a suitable material because it is offered in various shapes, such as sheets, plates, bars and seamless tubes which broaden the technology field in engineering applications. Charts and PDFs that are easy to access offer better specification information that can be easily incorporated into the design and manufacturing processes.

AISI 309Cb+Ta Austenitic Stainless Steel Chemical Composition And Grade Table

AISI 309Cb +Ta is hybrid stainless steel which is austenitic (its general element) with tantalum and niobium (Ta and Cb) added to enhance its properties. Most of the time, its chemical composition includes 22% chromium and 12% nickel, with the niobium and tantalum compared to 7% of the total amount. This helps to increase the strength and resistance against corrosion at high temperatures. This alloy has the ability to resist well oxidation and carburation at high temperature, therefore we can very well say this alloy is able to be applicable for furnace components and heat treatment equipment manufacturing in high temperature condition. It stands out due to its strong austenitic structure, which is known for high durability even in the toughest circumstances.

AISI 309Cb+Ta Austenitic Stainless Steel

Elements	Fe	Cr	Ni	Mn	Cb	Si	C	P	S
Min (%)	56	22	12	-	-	-	-	-	-
Max (%)	66	24	16	2.0	1.1	0.75	0.080	0.045	0.030

The Advantages and Disadvantages of AISI 309Cb+Ta Austenitic Stainless Steel

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Frequently Asked Questions

What are the elements of the AISI 309Cb+Ta stainless steel grade?

AISI 309Cb+Ta stainless steel has the chromium content of 23-26 % its nickel content varies between 12-15 % and its Ta content is 0. 08% carbon, with the addition of tantalum (Ta) for enhanced high temperature application of the material.

What are some of the characteristics of AISI 309Cb+Ta material?

This steel has high resistance to oxidation and high temperature corrosion, thus being useful especially in applications where high temperatures prevail for instance in furnace and heat treatment industries. It also shows good tensile and creep strength and the ability to deform plastically at room and high temperatures.

Is there any specific uses of AISI 309Cb+Ta Stainless steel ?

Yes, this steel is frequently used in the manufacture of furnace parts, heat exchangers, kilns, radiant tubes, and other equipment that operate at high temperatures where material is exposed to elevated levels of oxidation and corrosion.

What are the Welding characteristics of AISI 309Cb+Ta stainless steel?

The welding of AISI 309Cb+Ta stainless steel can be done by applying effective welding processes which include GTAW, GMAW and SMAW. In some cases, preheat and/or post weld heat treatment may be required to minimize cracking and achieve desired mechanical characteristics.