Semih Metals, based in Istanbul, Turkey, is a trusted name in the manufacturing and supply of Stainless Steel 431 Rectangular Bars. They pride themselves on delivering high-quality stainless steel products that are designed for both performance and durability. Each bar is crafted with precision to guarantee outstanding mechanical strength, resistance to corrosion, and accurate dimensions. With a strong commitment to quality, Semih Metals provides materials that meet the needs of demanding industries around the globe. Their Stainless Steel 431 Rectangular Bars are highly regarded for applications that require strength, toughness, and moderate corrosion resistance, making them a go-to partner for engineering and industrial solutions.
These bars are primarily made up of iron, chromium (15–17%), and nickel (1.25–2.5%), with a carefully controlled carbon content. This martensitic stainless steel boasts impressive tensile and yield strength, along with good toughness and hardness. They can be hardened and tempered to achieve superior mechanical properties, making them versatile for various engineering applications. Stainless Steel 431 also offers moderate resistance to corrosion and oxidation, especially in freshwater and mild chemical environments. These characteristics make the bars ideal for critical structural applications where strength and durability are paramount.
Stainless Steel Rectangular Bar Specification : ASTM A276 / A479, ASME SA276 / A479
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
| 431 | Max | Min |
| C | 0.20 | – |
| Cr | 17.00 | 15.00 |
| Fe | Balance | – |
| Mn | 1.00 | – |
| Ni | 2.50 | 1.25 |
| P | 0.040 | – |
| S | 0.030 | – |
| Si | 1.00 | – |
|
Typical Mechanical Properties at Elevated Temperatures, Hardened at 1010oC and Tempered at 30oC Above Working Temperature |
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|
Tempering Temperature oC |
510 |
570 |
620 |
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|
Working Temperature oC |
480 |
540 |
590 |
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|
Tensile Strengt Mpa |
1350 |
720 |
435 |
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|
Elongation in 50mm % |
15 |
20 |
26 |
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Room Temperature Hardness after Test |
HB |
440 |
330 |
280 |
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|
Rc |
47 |
37 |
30 |
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Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
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|
BS |
En |
No |
Name |
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|
431 |
S43100 |
431S29 |
57 |
1.4057 |
X17CrNi16-2 |
2321 |
SUS 431 |
Yes, Stainless Steel 431 Rectangular Bars can be used at high temperatures due to their excellent oxidation and corrosion resistance, typically up to 800°C.
The pressure rating of Stainless Steel 431 Rectangular Bars depends on the specific application and design, but they generally perform well under moderate pressure conditions in structural and machinery applications.
Yes, Stainless Steel 431 Rectangular Bars are fully recyclable and can be reused without losing their properties.
Stainless Steel 431 Rectangular Bars find their place in numerous industries that demand strong, hard, and corrosion-resistant materials. Common applications include shafts, marine equipment, components for pumps and valves, fasteners, and automotive parts. Thanks to their hardness and mechanical performance, they are also utilized in aerospace engineering, defense sectors, and chemical processing facilities. Moreover, their ability to resist moderate corrosion makes them suitable for marine and outdoor structural components. The blend of strength, toughness, and durability ensures that these bars meet the rigorous demands of various applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
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