Rupal Metals stands out as a reliable manufacturer and supplier of Stainless Steel 431 Flat Bars right in the heart of Delhi, India. They provide top-notch stainless steel solutions tailored for high-performance engineering and industrial needs. Stainless Steel 431 is a heat-treatable martensitic stainless steel known for its impressive strength, toughness, and decent corrosion resistance. These flat bars are crafted with precision to meet strict dimensional and mechanical standards, making them perfect for components that need to handle high torque, stress, and durability. You’ll find SS 431 flat bars commonly used in marine, aerospace, automotive, and mechanical sectors, where exceptional hardness, machinability, and wear resistance are crucial for load-bearing structures.
Stainless Steel 431 Flat Bars are made up of Chromium (15–17%), Nickel (1.25–2.5%), and Carbon (≤0.20%), along with Manganese, Silicon, and trace elements. This alloy boasts high tensile strength (700–1000 MPa), yield strength (500–700 MPa), and can reach hardness levels of up to 40 HRC after heat treatment. SS 431 is known for its good toughness and impact strength, even when temperatures fluctuate. It’s magnetic and maintains its shape under mechanical stress. The blend of strength and moderate corrosion resistance makes it perfect for environments that demand high load capacity, wear resistance, and structural integrity.
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 are a go-to choice for applications that require a mix of strength, toughness, and corrosion resistance. They’re perfect for crafting pump shafts, valve components, fasteners, machine parts, and aerospace hardware. The flat design makes them ideal for base plates, brackets, blades, and high-stress structural elements. In marine settings, they’re used in shafts and drive systems that face salty conditions. SS 431 is also a favorite in the petrochemical and automotive industries for parts that need precision machining and long-lasting durability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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