330 stainless steel wire is identified under multiple naming conventions, including grade, alloy, and UNS designations; depending on the specification, industry, or standard being used.
Stainless steel 330 alloys are known by several names depending on the standard, specification, or drawing being used. Understanding these alternate names matters because the same alloy can appear under different designation systems across quotes, certifications, standards, and legacy prints. For buyers and engineers working with wire, this is especially important, since Stainless Steel 330 may be referenced through material standards tied to specific product forms and applications rather than by one simple trade name alone.
Type 330 is the traditional “Type” grade designation used throughout stainless steel specifications and industry practice and appears in technical descriptions, engineering standards, and material references for Stainless Steel 330. Best for technical sales sheets, alloy descriptions, engineering drawings, and legacy documents where stainless steel grades are identified using the traditional Type system. Many engineers, buyers, and metallurgists still reference stainless grades in “Type” terminology, making this designation familiar, easy to recognize, and well aligned with longstanding industry documentation.
AISI 330 is the designation derived from the American Iron and Steel Institute (AISI) stainless steel grade classification system. Best for engineering discussions, procurement cross-references, technical specifications, and older North American documents that continue to use AISI terminology. The use of AISI 330 immediately identifies the material as the widely recognized high-nickel, heat-resistant austenitic stainless steel grade rather than simply a commercial trade name, making it useful for technical communication, material selection, and specification review across a wide range of industries.
UNS N08330 is the official Unified Numbering System (UNS) designation for Stainless Steel 330. Best for formal material identification, cross-referencing between industry standards, quality assurance documentation, mill certifications, engineering specifications, and multi-standard procurement requirements. This designation serves as the clearest and most unambiguous identifier when matching Stainless Steel 330 across different specification systems and international standards. It is especially useful when a drawing, certification, purchase order, or compliance document requires a formal material designation rather than a commercial or trade-style name.
Grade 330 is a generic technical descriptor commonly used in datasheets, engineering references, technical articles, and educational materials for the alloy. Best for technical overviews, material comparisons, specification discussions, and informational content. It reads naturally in explanatory writing and is particularly useful when comparing stainless steel grades, such as Grade 330 vs. Grade 310 or Grade 330 vs. Grade 601. Because it uses straightforward technical language rather than a specific standards designation, Grade 330 is widely understood by engineers, buyers, students, and industry professionals across a broad range of high-temperature applications.
RA330® is a registered trade name commonly associated with Stainless Steel 330 and is widely recognized for its exceptional performance in high-temperature applications. Best for furnace components, heat treatment equipment, thermal processing systems, and technical discussions involving heat-resistant alloys. The designation RA330® highlights the alloy’s high nickel content, excellent oxidation resistance, and resistance to carburization and thermal shock, making it a trusted material for demanding industrial environments that operate at elevated temperatures.
High Nickel Stainless Steel is a common technical description for Stainless Steel 330, highlighting its elevated nickel content and exceptional performance in high-temperature environments. Best for heat treatment equipment, furnace components, thermal processing systems, and technical discussions involving heat-resistant alloys. This designation emphasizes the alloy’s excellent resistance to oxidation, carburization, and thermal shock, making Stainless Steel 330 a preferred choice for demanding industrial applications that operate at elevated temperatures.
Heat Resistant Stainless Steel is a common industry description for Stainless Steel 330 because of its ability to maintain strength, oxidation resistance, and structural stability at elevated temperatures. Best for furnace components, heat treatment equipment, thermal processing systems, and other demanding high-temperature applications. This designation highlights the alloy’s high nickel and chromium content, which help provide excellent resistance to heat, scaling, and thermal cycling in continuous service environments.
High Temperature Stainless Steel is a common industry description for Stainless Steel 330 due to its ability to maintain strength, oxidation resistance, and dimensional stability during prolonged exposure to elevated temperatures. Best for furnace components, thermal processing equipment, heat exchangers, industrial ovens, and other high-heat applications. This designation highlights the alloy’s exceptional high-temperature performance and its ability to withstand thermal cycling, carburizing atmospheres, and long-term service in demanding industrial environments.
Furnace Grade Stainless Steel is a common industry description for Stainless Steel 330 because of its excellent performance in furnace and heat-treatment environments. Best for furnace components, radiant tubes, fixturing, thermal processing equipment, and other applications exposed to prolonged high-temperature service. This designation highlights the alloy’s resistance to oxidation, carburization, and thermal shock, making Stainless Steel 330 a preferred material for demanding furnace operations and continuous heat-processing applications.
35Ni-19Cr Stainless Steel is a chemistry-based designation commonly used to describe Stainless Steel 330 based on its approximate composition of 35% nickel and 19% chromium. Best for educational content, alloy comparisons, and technical discussions focused on heat-resistant alloy chemistry. This designation highlights the alloy’s high nickel content and excellent resistance to oxidation, carburization, and thermal shock while identifying it as a high-temperature austenitic stainless steel designed for demanding furnace and thermal processing applications.
19Cr-35Ni Stainless Steel is a chemistry-based designation commonly used to describe Stainless Steel 330 based on its approximate composition of 19% chromium and 35% nickel. Best for educational content, alloy comparisons, and technical discussions focused on high-temperature alloy chemistry. This designation highlights the alloy’s exceptional oxidation resistance, carburization resistance, and thermal stability while identifying it as a high-nickel austenitic stainless steel designed for furnace, heat-treatment, and other elevated-temperature applications.
Chromium-Nickel Austenitic Stainless Steel is a broad technical description used to classify Stainless Steel 330 based on its alloy chemistry and crystal structure. Best for educational content, metallurgy discussions, and technical overviews of stainless steel families. This designation highlights the alloy’s chromium and nickel content, which contribute to its excellent oxidation resistance, corrosion resistance, toughness, and high-temperature performance, while identifying it as a member of the austenitic stainless steel family designed for demanding thermal processing and furnace applications.
Oxidation Resistant Stainless Steel is a common industry description for Stainless Steel 330 because of its exceptional ability to resist scaling and oxidation during prolonged exposure to elevated temperatures. Best for furnace components, heat treatment equipment, thermal processing systems, and other high-temperature industrial applications. This designation highlights the alloy’s high nickel and chromium content, which provide outstanding resistance to oxidation and thermal degradation in demanding heat-service environments.
Carburization Resistant Stainless Steel is a common industry description for Stainless Steel 330 because of its exceptional ability to resist carbon absorption and degradation in high-temperature carburizing environments. Best for furnace components, heat-treatment equipment, radiant tubes, and thermal processing systems exposed to carbon-rich atmospheres. This designation highlights the alloy’s high nickel content and stable austenitic structure, which provide outstanding resistance to carburization while maintaining strength and durability during prolonged high-temperature service.
Heat Treat Stainless Steel is a common industry description for Stainless Steel 330 because of its excellent performance in heat-treatment and thermal processing environments. Best for furnace components, baskets, fixtures, trays, retorts, and other equipment exposed to repeated heating and cooling cycles. This designation highlights the alloy’s outstanding resistance to oxidation, carburization, and thermal shock, making Stainless Steel 330 a preferred material for demanding heat-treating applications and continuous high-temperature service.
Stainless steel wire alloys are used in various industries, including:
Sunset Wire can manufacture custom diameters of SS330 for your project. Common sizes of Type 330 include:
Sunset Wire stocks a large inventory of stainless steel wire to ensure you get it fast. Get your wire in 1 lb cans, 1 lb spools or 5 lb spools. Other spool sizes are available upon request.
Why Choose Sunset Wire?
Sunset Wire provides domestically drawn wire in various diameters, lengths and packages. Get your stainless steel wire delivered anywhere in the US thanks to our large inventory and dedicated supply chain management capabilities.