Stainless Steel 430 has a density of approximately 7.75 g/cm³ (0.280 lb/in³) and is composed of 16.00–18.00% chromium, 1.00% maximum silicon, 1.00% maximum manganese, 0.12% maximum carbon, and 0.030% maximum sulfur, with the balance consisting of iron. It is a tough, ductile, ferritic stainless steel known for its good corrosion resistance, oxidation resistance, and formability. The relatively high chromium content provides resistance to atmospheric corrosion and staining, while the nickel-free composition offers a cost-effective alternative to many austenitic stainless steel grades. This makes Type 430 an excellent choice for appliance components, architectural trim, automotive applications, wire forms, decorative products, and other applications requiring attractive appearance, durability, and economical stainless steel performance.
430 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 430 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 430 may be referenced through material standards tied to specific product forms and applications rather than by one simple trade name alone.
Type 430 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 430. 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 430 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 430 immediately identifies the material as the widely recognized ferritic 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 S43000 is the official Unified Numbering System (UNS) designation for Stainless Steel 430. 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 430 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 430 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 430 vs. Grade 410 or Grade 430 vs. Grade 304. Because it uses straightforward technical language rather than a specific standards designation, Grade 430 is widely understood by engineers, buyers, students, and industry professionals across a broad range of industrial, architectural, and consumer applications.
Ferritic Stainless Steel is a broad technical description used to classify Stainless Steel 430 based on its chromium-rich chemistry and ferritic crystal structure. Best for educational content, metallurgy discussions, and technical overviews of stainless steel families. This designation highlights the alloy’s good corrosion resistance, oxidation resistance, and resistance to stress corrosion cracking while distinguishing Stainless Steel 430 from austenitic and martensitic stainless steel grades. Its ferritic structure also contributes to its cost-effective performance by eliminating the need for significant nickel additions.
Chromium Ferritic Stainless Steel is a general technical description for Stainless Steel 430 based on its chromium-rich chemistry and ferritic microstructure. Best for educational content, metallurgy discussions, and technical overviews of stainless steel families. This designation highlights the alloy’s chromium-driven corrosion resistance, oxidation resistance, and resistance to stress corrosion cracking while identifying it as a nickel-free member of the ferritic stainless steel family.
17% Chromium Stainless Steel is a chemistry-based designation commonly used to describe Stainless Steel 430 based on its approximate chromium content of 16% to 18% chromium. Best for educational content, alloy comparisons, and technical discussions focused on stainless steel chemistry. This designation highlights the chromium addition that provides Stainless Steel 430 with its corrosion resistance, oxidation resistance, and attractive surface finish while identifying it as a ferritic stainless steel grade designed for cost-effective performance across a wide range of industrial and decorative applications.
16Cr Stainless Steel is a chemistry-based designation commonly used to describe Stainless Steel 430 based on its approximate 16% chromium content. Best for educational content, alloy comparisons, and technical discussions focused on stainless steel chemistry. This designation highlights the chromium addition that provides Stainless Steel 430 with its corrosion resistance, oxidation resistance, and ferritic stainless steel characteristics while offering a cost-effective alternative to nickel-containing stainless steel grades.
Nickel-Free Stainless Steel is a common technical description for Stainless Steel 430 because it achieves corrosion resistance through its chromium content rather than significant nickel additions. Best for educational content, alloy comparisons, cost-sensitive applications, and discussions focused on stainless steel chemistry. This designation highlights the alloy’s ferritic structure and cost-effective composition, making Stainless Steel 430 a popular choice for appliance components, automotive trim, architectural applications, wire forms, and decorative products where reliable corrosion resistance and affordability are important.
ASTM 430 is a common reference to Stainless Steel 430 when specified under ASTM material standards. Best for engineering specifications, procurement documents, quality requirements, and manufacturing applications that follow ASTM standards. The designation ASTM 430 helps identify the alloy within ASTM-controlled specifications and is frequently used in technical documentation, certifications, and material purchasing requirements, particularly where corrosion resistance, oxidation resistance, and cost-effective ferritic stainless steel performance are important.
Decorative Stainless Steel is a common industry description for Stainless Steel 430 because of its attractive surface finish, good corrosion resistance, and ability to accept a variety of polished and brushed finishes. Best for architectural trim, appliance panels, decorative components, consumer products, and aesthetic applications where appearance is important. This designation highlights the alloy’s ability to deliver an appealing finish and long-lasting performance while providing a cost-effective alternative to many nickel-containing stainless steel grades.
Appliance Grade Stainless Steel is a common industry description for Stainless Steel 430 because of its combination of corrosion resistance, attractive appearance, and cost-effective performance. Best for kitchen appliances, dishwasher components, refrigerator panels, range hoods, trim pieces, and other consumer products where durability and aesthetics are important. This designation highlights the alloy’s widespread use throughout the appliance industry, where its ferritic structure and nickel-free chemistry provide an economical solution while maintaining the clean, polished appearance associated with stainless steel.
General Purpose Ferritic Stainless Steel is a common technical description for Stainless Steel 430 because it offers a balanced combination of corrosion resistance, oxidation resistance, formability, and cost-effectiveness. Best for appliance components, architectural trim, automotive applications, wire forms, and general industrial uses. This designation highlights the alloy’s ferritic microstructure and nickel-free composition, making Stainless Steel 430 a versatile and economical choice for a wide range of applications where moderate corrosion resistance and attractive appearance are important.
Stainless steel wire alloys are used in various industries, including:
Sunset Wire can manufacture custom diameters of SS430 for your project. Common sizes of Type 430 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.