Isis Metals, a prominent manufacturer and supplier located in Manila, Philippines, focuses on crafting top-notch Stainless Steel 431 Round Bars and Rods that are built for outstanding strength, toughness, and resistance to corrosion. These products are made with precision and in line with international standards, making them perfect for tough industrial and marine applications. Stainless Steel 431 uniquely combines high tensile strength with moderate corrosion resistance, making it a great choice for both mechanical and structural purposes. Isis Metals guarantees a superb surface finish, precise dimensions, and reliable performance, providing durable stainless steel solutions for various engineering fields.
Stainless Steel 431 Round Bars and Rods are martensitic stainless steels that consist of chromium (15–17%), nickel (1.25–2.50%), and carbon (≤0.20%), along with small amounts of manganese, silicon, and sulfur. This blend strikes a great balance between strength, toughness, and corrosion resistance. The alloy boasts a tensile strength ranging from 850 to 1000 MPa and exhibits good hardness after heat treatment. SS 431 also shows excellent resistance to oxidation and high fatigue strength. Plus, it offers decent machinability, weldability (with some caution), and polishability, making it a dependable choice for high-stress and corrosive 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.
Stainless Steel 431 Round Bars and Rods find their way into a variety of industries that need components with both high strength and corrosion resistance. They’re often used to create pump shafts, marine hardware, valve components, bolts, nuts, and turbine parts. Additionally, these bars and rods are essential in the aerospace, chemical, and petroleum sectors for parts that face stress and corrosive conditions. Their ability to maintain mechanical strength across different temperatures makes them perfect for automotive components, precision instruments, and mechanical assemblies. SS 431 is truly a versatile material for demanding applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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