For a variety of industrial uses, George Metals, a reputable manufacturer and supplier based in Houston, USA, provides premium-grade stainless steel 431 rectangular bars. George Metals, which is well-known for its accurate manufacturing and customer-focused service, provides high-strength, corrosion-resistant bars that are suited to the requirements of industries like automotive, marine, and aerospace. Particularly in settings that demand superior stress and corrosion resistance, their Stainless Steel 431 products are designed to provide increased toughness, torque strength, and machinability. George Metals guarantees dependable product availability, competitive pricing, and on-time delivery in both domestic and foreign markets by adhering to international standards and maintaining a strong distribution network.
Stainless Steel 431 Rectangular Bars are made of martensitic stainless steel, which has trace amounts of silicon, phosphorus, manganese, and chromium in addition to roughly 15.0–17.0% chromium, 1.25–2.50% nickel, and 0.12–0.20% carbon. These bars have good ductility and a high tensile strength of about 850–1000 MPa. They reach Rockwell hardness in the 40–50 HRC range following appropriate heat treatment. Stainless steel 431 is a robust and adaptable material that is ideal for shafts, fasteners, and components needing both strength and resilience because it combines exceptional mechanical qualities with moderate corrosion resistance, especially in marine and mildly corrosive environments.
Stainless Steel Rectangular 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 |
Applications requiring a combination of corrosion resistance, torque strength, and toughness frequently use stainless steel 431 rectangular bars. 431 bars, which are valued for their high mechanical performance and moderate corrosion resistance, are frequently found in automotive drive parts, aircraft components, pump and propeller shafts, and marine hardware. They are also utilised in fasteners, valve parts, and industrial equipment where durability and strength are essential. The bars are a dependable option for both structural and precision engineering applications because of their chromium-nickel composition, which makes them perfect for environments subjected to moisture or saline conditions.
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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