Al Summan Metals, a well-regarded manufacturer and supplier based in Dubai, UAE, focuses on premium **Stainless Steel 431 Round Bars and Rods**. These products are prized for their outstanding strength, corrosion resistance, and enduring durability. Made to comply with international standards, these bars and rods are engineered to deliver dependable performance in demanding industrial, mechanical, and structural environments. Thanks to a carefully balanced combination of chromium and nickel, Stainless Steel 431 delivers superior defense against pitting, stress corrosion, and oxidation, while still retaining impressive tensile strength. Al Summan Metals’ 431 Round Bars and Rods are ideal for numerous applications, such as automotive, aerospace, petrochemical, and general engineering, guaranteeing that they deliver lasting operational efficiency and structural integrity.
The composition of Stainless Steel 431 Round Bars and Rods consists of roughly 16–18% chromium, 2–3% nickel, and 0.2–0.3% carbon, together with small quantities of manganese, silicon, and molybdenum. This mixture yields exceptional corrosion resistance, mechanical strength, and hardness. They feature a tensile strength between 700–850 MPa, yield strength of 450–550 MPa, and an elongation of 15–25%. Owing to their martensitic-ferritic microstructure, these bars and rods deliver superb toughness, fatigue resistance, and dimensional stability, which makes them ideal for high-stress, wear-intensive, and corrosive industrial settings.
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 in Length
Length : 1 To 6 Meters, Customized 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 |
Stainless Steel 431 Round Bars/Rods can indeed be used at high temperatures, providing good resistance to oxidation and scaling up to 600°F (316°C), which makes them well-suited for moderate temperature applications.
Yes, Stainless Steel 431 Round Bars/Rods are completely recyclable. As a form of stainless steel, they can be melted and reused without any loss of their natural properties, helping to support sustainability.
Yes, Stainless Steel 431 Round Bars/Rods are weldable, though preheating and post-weld heat treatment are advised to avoid cracking and preserve the material's mechanical properties.
Al Summan Metals’ Stainless Steel 431 Round Bars and Rods are widely applied in sectors that require a combination of strength and resistance to corrosion. They work well for uses like shafts, fasteners, valves, pump components, and structural parts across the automotive, aerospace, petrochemical, and marine industries. In addition, they serve in high-stress machinery, instrumentation, and engineering equipment exposed to corrosive and high-pressure environments. Together, their mechanical strength, corrosion resistance, and durability guarantee that these bars and rods deliver a long service life, reliable performance, and operational efficiency in demanding industrial uses.
We supply products accompanied by both mill test certificates and third-party test certificates, guaranteeing the highest standards of quality and compliance.
Al Summan Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Dubai, UAE
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