Aung Metals, a reputable manufacturer and supplier located in Naypyidaw, Myanmar, specializes in high-quality **Stainless Steel 431 Round Bars and Rods**. These products are celebrated for their remarkable strength, resistance to corrosion, and long-lasting durability. Crafted to adhere to international standards, these bars and rods are designed to perform reliably in tough industrial, mechanical, and structural settings. With a well-balanced mix of chromium and nickel, Stainless Steel 431 offers exceptional protection against pitting, stress corrosion, and oxidation, all while maintaining impressive tensile strength. Aung Metals’ 431 Round Bars and Rods are perfect for a variety of applications, including automotive, aerospace, petrochemical, and general engineering, ensuring they provide lasting operational efficiency and structural integrity.
The composition of Stainless Steel 431 Round Bars and Rods includes about 16–18% chromium, 2–3% nickel, and 0.2–0.3% carbon, along with trace amounts of manganese, silicon, and molybdenum. This blend results in outstanding corrosion resistance, mechanical strength, and hardness. They boast a tensile strength ranging from 700–850 MPa, yield strength of 450–550 MPa, and an elongation of 15–25%. Thanks to their martensitic-ferritic microstructure, these bars and rods offer excellent toughness, fatigue resistance, and dimensional stability, making them well-suited for high-stress, wear-intensive, and corrosive industrial environments.
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) |
|||
|
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.
Aung Metals’ Stainless Steel 431 Round Bars and Rods find extensive use in industries that demand both strength and corrosion resistance. They are ideal for applications such as shafts, fasteners, valves, pump components, and structural parts in automotive, aerospace, petrochemical, and marine sectors. Moreover, they are utilized in high-stress machinery, instrumentation, and engineering equipment that face corrosive and high-pressure conditions. The combination of mechanical strength, corrosion resistance, and durability ensures that these bars and rods provide a long service life, dependable performance, and operational efficiency in challenging 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.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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