A reputable manufacturer and supplier in Houston, Texas, George Metals provides a high-end selection of stainless steel 431 round bars and rods that are designed to satisfy a variety of industrial needs. These bars and rods are well-known for their accuracy, robustness, and corrosion resistance, making them perfect for uses requiring high tensile strength and toughness. George Metals ensures adherence to global standards and client-specific requirements while serving a variety of industries, including oil and gas, aerospace, marine, and automotive. For high-performance stainless steel round bars and rods in the USA and abroad, George Metals is a preferred partner due to its sophisticated processing capabilities, affordable prices, and prompt delivery.
Stainless Steel 431 Round Bars and Rods are martensitic stainless steels that have a controlled carbon content of approximately 0.20% and are primarily composed of 15–17% Chromium and 1.25–2.5% Nickel. Excellent high-strength qualities and moderate corrosion resistance are made possible by this composition. Following heat treatment, 431 provides hardness levels of 30 to 40 HRC and tensile strengths of up to 850 MPa. Additionally, it has good torque strength, toughness, and resistance to corrosion cracking from stress and fatigue. Because of its mechanical characteristics, SS 431 can be used in high-load and high-performance settings, particularly those where corrosion resistance and strength are crucial.
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 |
||||
|
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 |
|||||
|
431 |
7800 |
200 |
10.2 |
12.1 |
– |
20.2 |
– |
460 |
720 |
Round bars and rods made of stainless steel 431 are frequently utilised in conditions requiring high strength and moderate corrosion. Bolts, motor parts, pump shafts, marine components, and aircraft fasteners are common applications, particularly in situations where high tensile strength and corrosion resistance are essential. SS 431 is used in the marine and aerospace industries for mechanical and structural components that are subjected to harsh environments or saltwater. It is also used in the production of gears, screws, and high-strength fittings in the oil and gas, chemical processing, and automotive industries. In demanding industrial applications, SS 431 provides dependable performance due to its exceptional machinability and dimensional stability after heat treatment.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
George Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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