Maduka Metals, a well-respected manufacturer and supplier located in Abuja, Nigeria, is all about providing top-notch **Stainless Steel 431 Round Bars and Rods**. These bars are celebrated for their fantastic mix of high tensile strength, toughness, and decent corrosion resistance. By utilizing cutting-edge technology and high-quality raw materials, Maduka Metals guarantees that every product meets a consistent standard of quality and precision. The Stainless Steel 431 grade is especially ideal for applications that demand both strength and resistance to mild corrosive environments, making it a go-to choice in the marine, aerospace, and engineering fields.
**Stainless Steel 431 Round Bars and Rods** are primarily made up of **iron**, with about **15–17% chromium**, **1.25–2.5% nickel**, and **0.12–0.20% carbon**, along with trace amounts of **manganese** and **silicon**. This type of martensitic stainless steel strikes a great balance in mechanical properties, boasting a **tensile strength of around 850–1000 MPa** and impressive **toughness and hardness** when heat-treated. The nickel content boosts its corrosion resistance and ductility, making it stronger and more reliable under stress and heavy loads.
Stainless Steel Round 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 |
|
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity (nΩ.m) |
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|
0-100°C |
0-315°C |
0-538°C |
at 100°C |
at 500°C |
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|
431 |
7800 |
200 |
10.2 |
12.1 |
– |
20.2 |
– |
460 |
720 |
Yes, Stainless Steel 431 Round Bars/Rods can be used at high temperatures, offering good oxidation and scaling resistance up to 600°F (316°C), making them suitable for moderate temperature applications.
Yes, Stainless Steel 431 Round Bars/Rods are fully recyclable. Being a type of stainless steel, they can be melted down and repurposed without losing their inherent properties, contributing to sustainability.
Yes, Stainless Steel 431 Round Bars/Rods can be welded, although preheating and post-weld heat treatment are recommended to prevent cracking and maintain the material's mechanical properties.
You’ll find **Stainless Steel 431 Round Bars and Rods** being put to good use across a variety of industries. They’re commonly found in the **marine, chemical, and aerospace sectors**, where they’re used to create **pump shafts, valve components, propeller shafts, and fasteners**. Their outstanding mechanical properties make them perfect for **automotive parts, turbine blades, and mechanical fittings** where strength and corrosion resistance are essential. Plus, they’re also utilized in **paper mills, textile machinery, and oilfield equipment**, where high performance is a must under changing conditions. This versatility makes 431 stainless steel a reliable choice for industrial applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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