Weston Stainless, a Midland, UK-based company, is a renowned producer and distributor of superior stainless steel products, providing high-quality industrial solutions. Among their products, Stainless Steel 439 Bars are well-known for their superior corrosion resistance, thermal properties, and weldability. These bars, produced from Grade 439 stainless steel, come in a range of shapes such as round, square, hexagonal, and flat bars. The alloy, a low carbon and titanium-stabilized ferritic stainless steel, exhibits higher oxidation resistance and strength and is best suited for applications that demand durability, formability, and high-temperature properties.
Chemical composition of Stainless Steel 439 Bars includes about 17-19% Chromium, 0.025% Carbon, 0.2-0.5% Titanium, and trace amounts of Manganese, Silicon, and Phosphorus, which make them superior in mechanical and corrosion-resistant properties. These bars have good mechanical strength, tensile strength ranging from 415-585 MPa, yield strength of around 205 MPa, and elongation between 20-30%. Physical properties are very good thermal conductivity, oxidation resistance up to 850°C, and low thermal expansion, guaranteeing long-term stability in harsh and high-temperature environments.
| Standard | ASTM A276, ASTM A479 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Material Grade | Stainless Steel 439 (UNS S43035) |
| Stainless Steel 439 Bright Bars | Outside Diameter in the range of 4mm to 500mm |
| Stainless Steel 439 Bright Bars | Outside Diameter in the range of 4mm to 100mm |
| Stainless Steel 439 Hex Bars | 18mm – 57mm (11/16″ to 2-3/4″) |
| Stainless Steel 439 Square Bars | 18mm – 47mm (11/16″ to 1-3/4″) |
| Stainless Steel 439 Flats | 1/2” to 10” in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Grade | C | Si | Mn | P | S | Cr | Ti |
| 439 | 0.070 | 1.00 | 1.00 | 0.040 | 0.030 | 17.00~19.00 | ≥ 0.20+4(C+N)min – 0.50 max |
| Tensile strength | Yiled strength | Elongation | Hardness |
| 455 | 290 | 34 | 78 HB |
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Stainless Steel 439 Bars are used extensively in applications of the automotive, construction, petrochemical, and power generation industries because of their outstanding heat and corrosion resistance. They find extensive application in exhaust systems, heat exchangers, fuel system parts, industrial equipment, and kitchen appliances. Stainless Steel 439 Bars are also excellent for structural purposes, flue gas systems, and architectural applications involving long-lasting durability. Their good weldability and formability render them a choice in engineering and manufacturing sectors requiring cost-efficient, high-performance stainless steel bars.
Excellent corrosion resistance and high-temperature stability, ideal for automotive exhaust systems, industrial heat exchangers, and furnace components, ensuring durability in harsh environments.
Good oxidation resistance and mechanical properties, suitable for applications in water heaters, heat exchangers, and structural components in construction exposed to corrosive conditions.
Used in automotive and industrial applications, providing excellent corrosion resistance and stability, ideal for making structural components and fittings exposed to high temperatures.
Deliver strong corrosion resistance and high-temperature performance, perfect for heat exchangers, furnace parts, and structural components in various industrial and construction applications.
Excellent resistance to oxidation and stress corrosion cracking, ideal for fasteners, fittings, and components in automotive and industrial environments requiring high durability.
Good corrosion and heat resistance, suitable for structural support in construction and industrial applications, ensuring long-lasting performance in challenging environments.
Stainless Steel 439 Bars are accompanied by necessary test certificates such as Mill Test Certificates (MTC) according to EN 10204 3.1/3.2, third-party inspection reports, and material traceability records. They are protected by wooden crates, pallets, or protective plastic packaging to minimize damage during transportation. Suitable labeling is used to enable easy identification, and efficient deliveries enable fast supply to reach global markets, meeting industry standards and being shipped on time to clients across the globe.
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