High-performance stainless steel 431 bars and rods are the speciality of Dhruv Metals, a reputable manufacturer and supplier with headquarters in Hyderabad, India. For applications needing mechanical durability as well as resistance to chemical and atmospheric conditions, SS 431 bars are perfect because of their remarkable strength, toughness, and resistance to corrosion. To satisfy the various demands of sectors like engineering, aerospace, marine, and defence, Dhruv Metals provides these bars and rods in a range of sizes and finishes. The business has established a solid reputation for providing dependable stainless steel solutions through accurate manufacturing, stringent quality control, and on-time delivery.
431 Stainless Steel Bars and rods are made of martensitic stainless steel alloys with iron as the base and chromium (15–17%), nickel (1.25–2.5%), and low carbon (~0.2%). After heat treatment, they provide exceptional hardness, tensile strength (~850 MPa), and yield strength (~620 MPa). In mildly corrosive environments, these bars continue to exhibit good corrosion resistance. Because of its high impact toughness and moderate ductility, SS 431 is appropriate for high-stress applications. It offers a balance of strength, corrosion resistance, and machinability and is magnetic by nature. It can also be hardened by heat treatment.
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
Standard : ASTM A276, ASTM A479
Material Grade : Stainless Steel 431 (UNS S43100)
Stainless Steel 431 Round Bars : Outside Diameter in the range of 4mm to 500mm
Stainless Steel 431 Bright Bars : Outside Diameter in the range of 4mm to 100mm
Stainless Steel 431 Hex Bars : 18mm – 57mm (11/16″ to 2-3/4″)
Stainless Steel 431 Square Bars : 18mm – 47mm (11/16″ to 1-3/4″)
Stainless Steel 431 Flats : 1/2” to 10” in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available
Length : 1 to 6 Meters, Custom Cut Lengths
Form : Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
| 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 | – |
| Element | SS 431 |
| Density | 0.2800 lb/inch³ |
| Electrical Resistivity | 70° Ohms (circ mil./ft.) |
| Modulus of Elasticity | 29.0 X 10^3 |
|
Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
||
|
BS |
En |
No |
Name |
||||
|
431 |
S43100 |
431S29 |
57 |
1.4057 |
X17CrNi16-2 |
2321 |
SUS 431 |
431 Stainless Steel Industries that need materials with high strength and resistance to corrosion frequently use bars and rods. They are utilised in landing gear components, fasteners, and structural elements in the aerospace and defence industries. Because of its resistance to saltwater conditions, SS 431 is perfect for propeller shafts, bolts, and valve components in marine applications. Additionally, it is used for agitators, pump shafts, and machinery parts in the chemical and pharmaceutical processing industries. 431 rods are used in the automotive industry for engine, axle, and gear components. It is appropriate for both load-bearing and precision-engineered applications due to its exceptional mechanical performance and heat treatability.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Dhruv Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hyderabad , India
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