Established in the heart of Manama’s industrial landscape, Junaid Metals has built a strong reputation for supplying high-grade materials to Bahrain’s growing market. We take pride in introducing our Stainless Steel 431 Flat Bar, a superior choice for projects demanding exceptional strength and reliability. This particular grade is engineered for challenging environments where ordinary steel might fall short, offering a robust solution that stands up to demanding applications while providing excellent value to our local partners and clients across the region.
The composition of Stainless Steel 431 is what sets it apart, being a martensitic grade that is chromium-nickel based and hardened through heat treatment. This specific makeup gives the flat bar its remarkable mechanical properties, including a very high tensile strength and impressive hardness levels. It also maintains good corrosion resistance, particularly against atmospheric conditions, making it a structurally sound and durable material choice for a variety of demanding industrial and engineering tasks.
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.
You’ll commonly find the Stainless Steel 431 Flat Bar hard at work in applications where strength and resistance to wear are absolutely critical. It is extensively used in the automotive industry for components like shafts, fasteners, and valves. Beyond that, its toughness makes it ideal for pump shafts, fittings within the oil and gas sector, and various high-stress parts in machinery and tooling. Essentially, wherever a project calls for a material that can handle heavy loads and resist abrasion, this flat bar delivers outstanding performance and longevity.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Junaid Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manama, Bahrain
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