Nestled in the industrial heart of Safat, Kuwait, Nimish Metal has built a strong reputation for providing high-quality metal solutions. We are proud to be your trusted local source for Stainless Steel 431 Round Bars and Rods, known for their exceptional durability and performance. Our commitment lies in supplying materials that meet the rigorous demands of various industries, ensuring our clients receive products that are reliable, consistent, and perfectly suited for challenging applications where strength and corrosion resistance are paramount.
Stainless Steel 431 is a martensitic grade distinguished by its high strength and good corrosion resistance. Its composition is primarily chromium (15-17%) with nickel (1.25-2.50%), which is balanced to enhance its hardenability. This alloy can be heat-treated to achieve impressive mechanical properties, offering a high tensile strength and yield strength that surpasses many standard austenitic grades. This makes the material remarkably tough and resistant to wear, allowing it to perform reliably under significant stress and in mildly corrosive conditions.
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.
The robust nature of these 431 round bars and rods makes them a preferred choice for components that must withstand heavy loads and abrasive environments. You’ll commonly find them used in the automotive industry for critical parts like shafts, valves, and fasteners. They are also extensively used in aerospace applications, for pump shafts in chemical processing, and within the oil and gas sector for machinery that demands a combination of high strength and a resistance to corrosion, ensuring long-lasting performance in demanding operational settings.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nimish Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Safat, Kuwait
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