AISI 330Hc Stainless Steel Chemical Composition, Grade, Charts and Online Pdf

AISI 330Hc is an austenitic stainless steel that is recognized for its high content of chromium and performs extremely well in terms of resistance to oxidation and carburization at elevated temperatures. The chemical composition of the type of steel used normally contains all crucial elements such as carbon, manganese, silicon, nickel, sulfur, chromium, and iron. It features good resistance toward heat and has very high strength. It therefore is used in different industries such as automotive, aerospace, and thermal processes. Grades and specifications follow AISI standards ensuring the final product has the required qualities and is of the best performance. The users can easily explore a comprehensive chart as well as a PDF with all necessary information on the alloy's composition, grades, and characteristics. This reference material helps the engineers, manufacturers and scientists choose the suitable material for different applications.

AISI 330Hc Austenitic Stainless Steel Chemical Composition And Grade Table

ASI 330Hc stainless steel is known for its distinguishing high-temperature oxidation resistance and strength, being the austenitic kind. Its chemical composition is mostly of iron, chromium, nickel, and silicon, but other components could exist in traces. Grade displays excellent corrosion resistance in a range of environments including carburizing and nitriding atmospheres. This special alloy has a widespread use in industrial furnaces, heat exchangers, and thermal processing equipment where elevated temperatures are present. AISI 330Hc has superior properties and a balanced mixture, which makes it the top pick for high temperature applications that are demandingly harsh, providing durability and a long life span.

AISI 330Hc Austenitic Stainless Steel
Elements Fe Ni Cr Mn Si C P S
Min (%) - - - - - - - -
Max (%) 42 36 19 2 1.13 0.080 0.040 0.030

The Advantages and Disadvantages of AISI 330hc Austenitic Stainless Steel


  • High Temperature Strength: AISI 330HC has high strength and stability at a high temperature, primarily applied for high-temperature equipment.

  • Oxidation Resistance: Demonstrates excellent resistance to oxidation and scaling even in operating conditions up to 1150°C (2100°F).

  • Carburization Resistance: It provides excellent resistance to carburization, an important characteristic in environments with carburizing gases.

  • Corrosion Resistance: Is very resistant to a number of corrosive substances such as sulfuric and nitric acids thus increasing its applicability in industries.

  • Durability: High mechanical properties guarantee efficient operation and a long service life in conditions that are challenging for the material.


  • Cost: Additional cost because of the presence of more number of alloying additions like nickel and chromium.

  • Work Hardening: It tends to work harden quickly which makes machining and forming rather challenging and requires the use of special procedures.

  • Weldability: It demands precise usage of welding procedures to prevent problems like cracking, which may be tricky and add to the fabrication costs.

  • Density: It has a higher density than other stainless steels, which could influence design and manageability in some situations.

  • Availability: Generally, they are not as easily sourced compared to more conventional grades, which may mean longer order lead and higher acquisition costs.

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Frequently Asked Questions

What is the chemical composition of AISI 330HC stainless steel?

AISI 330HC stainless steel usually has a composition of about 18-20% chromium, 34-37% nickel, 0.5-1.5% silicon, 0.2-0.3% carbon, 1-2% manganese and the rest iron.

What is the grade number of AISI 330HC stainless steel?

AISI 330HC is a specific type of austenitic stainless steel, containing elevated levels of both chromium and nickel and small amounts of silicon and other elements.

What industries and practices use AISI 330HC stainless steel most commonly?

AISI 330HC is a high carbon and high molybdenum grade austenitic alloy that is utilized in high temperature environments such as heat exchanging devices, furnace parts, and equipment in the petrochemical industries because of impressive heat and corrosion-resistant properties.

What are the differences between AISI 330HC and other AISI stainless steel grades?

AISI 330HC has higher high temperature mechanical properties and better oxidation characteristics as compared to other types of stainless steel hence is appropriate for high temperature applications.