Isis Metals, a trusted manufacturer and supplier located in Manila, Philippines, specializes in high-quality Stainless Steel 431 Flat Bars that are built for exceptional mechanical strength, hardness, and resistance to corrosion. This martensitic stainless steel grade is celebrated for its impressive toughness and high tensile properties, making it perfect for tough industrial applications. Stainless Steel 431 can be hardened and tempered, offering remarkable resistance to oxidation and stress corrosion cracking. At Isis Metals, we ensure that our precision-engineered SS 431 Flat Bars meet international standards, making them suitable for marine, aerospace, petrochemical, and mechanical engineering sectors.
Stainless Steel 431 Flat Bars generally consist of 15–17% chromium, 1.25–2.50% nickel, and 0.12–0.20% carbon, along with trace amounts of manganese, silicon, and phosphorus. This blend results in excellent hardness, strength, and moderate corrosion resistance. The alloy boasts a tensile strength ranging from 700–950 MPa and can reach a Rockwell hardness of up to 45 HRC after heat treatment. SS 431 is known for its good toughness, high yield strength, and resistance to mild acids and alkalis, making it a great choice for components that face mechanical stress and marine conditions.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| ement | C | Cr | Mn | Ni | P | S | Si |
| SS 431 | 0.20 | 17.00-15.00 | 1.00 | 2.50-1.25 | 0.040- | 0.030 | 1.00 |
| Element | Density | Electrical Resistivity | Modulus of Elasticity |
| SS 431 | 0.2800 lb/inch³ | 70° Ohms (circ mil./ft.) | 29.0 X 10^3 |
| Flat Bar | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.49 | 1.60 |
| 18 | 0.62 | 2.02 |
| 20 | 0.76 | 2.49 |
| 22 | 0.92 | 3.02 |
| 25 | 1.19 | 3.90 |
| 28 | 1.49 | 4.89 |
| 28 | 1.49 | 4.89 |
| 30 | 1.71 | 5.61 |
| 32 | 1.95 | 6.38 |
| 36 | 2.46 | 8.08 |
| 38 | 2.74 | 9.00 |
| 40 | 3.04 | 9.97 |
| 45 | 3.85 | 12.62 |
| 50 | 4.75 | 12.62 |
| 56 | 8.96 | 19.55 |
| 60 | 6.84 | 22.44 |
| 65 | 8.03 | 26.34 |
| 70 | 9.31 | 30.54 |
| 75 | 10.69 | 35.06 |
| 80 | 12.16 | 39.89 |
| 90 | 15.39 | 50.49 |
| 100 | 19 | 62.34 |
Yes, Stainless Steel 431 Flat Bar offers good corrosion resistance, particularly in mild to moderate environments, due to its high chromium content. Its martensitic structure enhances strength while maintaining resistance to atmospheric conditions, organic materials, and mild acids, making it suitable for marine and industrial applications. Proper maintenance ensures longevity.
The typical thickness of Stainless Steel 431 Flat Bar ranges from 3mm to 100mm, depending on the manufacturer and application. Custom sizes are often available to meet specific requirements in industries such as marine, aerospace, and engineering.
Stainless Steel 431 Flat Bar is widely used in industries such as aerospace, marine, automotive, and chemical processing. Its high strength, toughness, and corrosion resistance make it ideal for manufacturing shafts, bolts, valves, fasteners, and other critical components.
Stainless Steel 431 Flat Bars find extensive use in industries that demand high mechanical strength, corrosion resistance, and hardness. They are perfect for crafting shafts, marine hardware, pump components, aircraft fittings, and fasteners. In the petrochemical and automotive sectors, SS 431 is utilized for parts that endure wear, impact, and moderate corrosion. Its excellent polishability and surface finish make it ideal for decorative and precision-engineering applications. The alloy’s unique combination of toughness, heat resistance, and mechanical reliability ensures a long service life in challenging environments like marine, aerospace, and industrial machinery.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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