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In the heart of Manila’s industrial landscape, Diaz Sheetsandplates stands as your trusted partner for premium metal solutions, specializing in the supply and fabrication of Stainless Steel 439. We are dedicated to providing businesses across the Philippines with materials that combine exceptional durability with outstanding value, ensuring your projects are built on a foundation of reliability and quality you can count on for the long term.
Stainless Steel 439 earns its reputation through a thoughtful composition, primarily chromium and titanium, which gives it excellent resistance to corrosion, particularly against oxidation. This grade is known for its good formability and weldability, making it a practical choice for fabricators. It maintains reliable strength and toughness across various temperatures, offering a balanced set of mechanical properties that perform consistently in demanding environments without the complexity of higher-grade alloys.
| Specifications | ASTM A240, ASME SA240 |
| Standard | JIS, ASTM, AISI, GB, EN, DIN |
| Surface | 2B, 2D, BA, NO.4, NO.8, 8K, Mirror, Checkered, Embossed, Hair Line, Sand Blast, Brush, Etching |
| Finish | Cold rolled, Hot rolled |
| Width | 1000-2000mm |
| Length | 1000-6000mm |
| Thickness | 0.40mm – 6.00mm |
| Grade | Fe | Cr | Si | Ti | Mn | Ni | Mo | Nb/Cb | P | N | C | S |
| SS 439 | 81.3535 | 17.35 | 0.35 | 0.335 | 0.25 | 0.200 | 0.1 | 0.02 | 0.02 | 0.0100 | 0.01 | 0.0015 |
| Tensile strength (annealed) | 438 MPa | 63500 psi |
| Yield strength (annealed/ @strain 0.200 %) | 263 MPa | 38100 psi |
| Modulus of elasticity | GPa | ksi |
| Poisson’s ratio | 0.270 – 0.290 | 0.270 – 0.290 |
| Elongation at break (In 2″, 50% cold worked) | 2.80% | 2.80% |
| Hardness, Rockwell B (annealed) | 72.9 | 72.9 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
UNS S43035 Sheets and Plates offer several key advantages, including excellent resistance to oxidation and corrosion, especially in high-temperature environments. This makes it ideal for automotive exhaust systems and heat exchangers. Its high strength and durability ensure long-lasting performance even in harsh conditions. The material also offers good weldability and formability, making it easy to fabricate into various shapes and sizes. Additionally, 439 stainless steel is cost-effective compared to other high-performance alloys, providing a reliable and economical solution for applications requiring superior heat resistance and mild corrosion protection.
| Grade | WERKSTOFF NR. | UNS |
| SS 439 | 1.4510 | S43035 |
You’ll find Stainless Steel 439 is incredibly versatile, perfectly suited for automotive exhaust systems, silencers, and catalytic converter shells where heat resistance is key. Its strength also makes it ideal for architectural trims, kitchen equipment, and industrial containers. From the demanding environment under your car’s hood to the sleek surfaces in a commercial kitchen, this material provides a cost-effective and dependable solution for applications that require a sturdy, corrosion-resistant stainless steel.
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