Vision Alloys is a leading manufacturer, supplier, and stockist of 431 stainless steel round bars, offering high-strength and corrosion-resistant solutions for various industries. Because of their hardness, toughness, and wear and corrosion resistance, the 431 bars find extensive application in chemical, marine, aerospace, automotive, and manufacturing sectors.


SS 431 Rod, 431 SS Round Bar, Stainless Steel 431 Bar, Stainless Steel 431 Rod, 431 Stainless Steel Round Bar, SS 431 Round Bar Manufacturers in India.


Stainless Steel 431 Round Bar
  • UNS

    S43100

  • WNR

    1.4057

  • ASTM / ASME

    ASTM A276 / SA276

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SS 431 Hex Bar, 1.4057 Round Bar, UNS S43100 Round Bar, 431 Stainless Steel Flat Bar, 431 Stainless Steel Square Bar, 6mm 431 Stainless Steel Rod, SS 431 Rod Manufacturers in India


Our SS 431 round rods come in several diameters and finishes to satisfy diverse industrial purposes. This grade of stainless steel is perfect for applications that need to last and work well in harsh conditions because it has excellent tensile strength, impact resistance, and machinability. As a 431 round bar manufacturer, for dependability and consistency, we make sure our goods follow ASTM, ASME, and DIN guidelines.


To improve their strength and corrosion resistance, 431 stainless steel round rods have a chemical composition of 16–18% chromium, 1.25–2.5% nickel, and minute quantities of carbon, manganese, and silicon. These bars are fit for demanding uses because of their tensile strength of up to 850 MPa, yield strength of 600 MPa, and hardness of about 300 HB.


We offer stainless steel 431 round bars in sizes ranging from 5mm to 500mm in diameter, with custom lengths available to suit specific project requirements. These bars are commonly used for manufacturing pump shafts, bolts, nuts, and valves, ensuring long-lasting performance in critical operations.


At Vision Alloys, we are dedicated to providing high-quality 431 SS round bars at competitive prices. Our rigorous quality control procedures guarantee that every product satisfies industry criteria, therefore providing dependability and longevity. Strong supply networks allow us to guarantee fast worldwide delivery to effectively satisfy our clients.


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fevicon-logo SS 431 Round Bar Specifications

Standard ASTM A479, ASTM A276, AMS 5511, AMS 5513, AMS 5647
Dimensions DIN, EN, ASTM, JIS, ASME, BS, AISI
Hex Bar Size 2-100mm A/F
Round Bar Size Diameter: 3-~800mm
Flat Bar Size Thickness: 2 -100mm
Width: 10 to 500mm
Angle Bar Size 3mm*20mm*20mm~12mm*100mm*100mm
Square Bar Size 4 to 100mm
Channel Bar 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness
Rectangular Bars Section 3.0 to 12.0mm thickness
Threaded Bar Billet Size 1/2 to 495mm Diameter
Rectangles Size 33 x 30mm to 295 x 1066mm
Hollow Bar 32mm OD x 16mm ID to 250mm OD x 200mm ID)
Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Finish Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Surface Hot Rolled Pickled, Bright, Sand Blasting Finished, Cold Drawn, Hairline,Polished
Form Rod, Round, Channel Bar, T-Bar, Flat Bar, Precision Ground Bar, Blocks, Square, Rings, Round Rod, Triangle, Hollow, Rectangle, Threaded, Hex (A/F), Profiles, Half Round Bar, Ingot, Billet, I/H Bar, Forging etc.

Applications:Stainless Steel 431 round bars find applications in a wide range of industries, including:


1. Aerospace: Used for components like aircraft landing gear and fasteners due to its high strength and toughness.
2. Automotive: Employed in applications like drive shafts, fasteners, and bearings for its durability and resistance to wear.
3. Manufacturing: Utilized in the production of industrial equipment and machinery parts where strength and corrosion resistance are crucial.
4. Petrochemical Industry: Applied in equipment subjected to mild corrosive environments.


Machinability and Fabrication: Stainless Steel 431 is machinable, which means it can be cut, shaped, and formed with relative ease. This makes it a practical choice for manufacturers and engineers who require a material that can be processed into specific components efficiently.


Quality Assurance

To preserve the high standards of our selection of industrial round bar, we have always adhered to a systematic quality management process.

Team OF Experts

Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of round bar.

fevicon-logo Equivalent Grades Of Stainless Steel 431 Round Bar

STANDARD WERKSTOFF NR. UNS JIS
SS 431 1.4057 S43100 SUS 431

fevicon-logo SS 431 Round Bar Chemical Composition

Grade C Mn Si P S Cr Mo
SS 431 0.20 max 1.00 max 1.00 max 0.040 max 0.030 max 17.00 - 15.00 -

fevicon-logo Mechanical Properties of SS 431 Round Bars

Density Electrical Resistivity Modulus of Elasticity
0.2800 lb/inch³ 70° Ohms (circ mil./ft.) 29.0 X 10^3

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If would you like to inquire or place an order.
+91 22 6659 5948


fevicon-logo Types of Stainless Steel 431 Round Bar

Hex Bar

431 Stainless Steel Hex Bar

Flat Bar

SS 431 Flat Bar

Square Bar

SS 431 Square Bar

Threaded Rod

431 Stainless Steel Threaded Rod

Bright Bar

431 Stainless Steel Bright Bar

Rectangular Bar

431 SS Rectangular Bar

Hollow Bar

Stainless Steel 431 Hollow Bar

Triangle Bar

431 Stainless Steel Triangle Bar


Round Bar Manufacturers In India

  • Hardness Test

  • Chemical and Physical Testing

  • Tensile test on metals - ISO 6892-1

  • Universal Testing Machine


fevicon-logoSize Chart Stainless Steel 431 Round Bar

US Bar Japanese Metric Canadian/ASTM
Diameter(Inch) Stainless Steel431 Bar Size Diameter (millimeter) Stainless Steel431 Bar Size Diameter (millimeter) Stainless Steel431 Bar Size Diameter (millimeter2) Stainless Steel431 Bar Size
0.250 #2 6 6 5 5 100 10M
0.375 #3 10 10 5.5 5.5 200 15M
0.500 #4 13 13 6 6 300 20M
0.625 #5 16 16 7 7 500 25M
0.750 #6 19 19 8 8 700 30M
0.875 #7 22 22 9 9 1000 35M
1.000 #8 25 25 10 10 1500 45M
1.125 #9 29 29 11 11 2500 55M
1.250 #10 32 32 12 12
1.375 #11 35 35 14 14
1.500 #12 38 38 16 16
1.625 #13 41 41 18 18
1.750 #14 44 44 20 20
1.875 #15 48 48 22 22
2.000 #16 51 51 25 25
2.250 #18 57 57 28 28
32 32
36 36
40 40
44 44
50 50

fevicon-logoASTM A276 UNS S43100 Bar Weight Chart

Diameter in inch Size in inch/MM Weight Lbs/ft & Kg/M
1/16 0.0625 1.5875 0.010 / 0.01488
1/8 0.125 3.175 0.042 / 0.062496
3/32 0.0938 2.38252 0.0240 / 0.035712
5/32 0.1563 3.97002 0.065 / 0.09672
7/32 0.2188 5.55752 0.128 / 0.190464
3/16 0.1875 4.7625 0.094 / 0.139872
1/4 0.25 6.35 0.167 / 0.248496
5/16 0.3125 7.9375 0.260 / 0.38688
9/32 0.2813 7.14502 0.211 / 0.313968
3/8 0.375 9.525 0.376 / 0.559488
1/2 0.5 12.7 0.668 / 0.993984
7/16 0.4375 11.1125 0.512 / 0.761856
9/16 0.5625 14.2875 0.844 / 1.255872
11/16 0.6875 17.4625 1.264 / 1.880832
5/8 0.625 15.875 1.043 / 1.551984
3/4 0.75 19.05 1.502 / 2.234976
7/8 0.875 22.225 2.045 / 3.04296
13/16 0.8125 20.6375 1.761 / 2.620368
15/16 0.9375 23.8125 2.35 / 3.4968
1 1/16 1.0625 26.9875 3.012 / 4.481856
1 1 25.4 2.671 / 3.974448
1 1/8 1.125 28.575 3.38 / 5.02944
1 1/4 1.25 31.75 4.173 / 6.209424
1 3/16 1.1875 30.1625 3.77 / 5.60976
1 5/16 1.3125 33.3375 4.598 / 6.841824

fevicon-logo Other Types Of Stainless Steel 431 Round Bar

ASTM A276 431 Stainless Steel Bar 8mm 431 Stainless Steel Rod
1.4057 Round Bar Stainless Steel 431 Cold Drawn Round bar
Stainless Steel 431 Polished Bar 431 12mm Stainless Steel Rod
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fevicon-logo Stainless Steel 431 Rods Application Industries

Aerospace Industry
Nuclear Industry
MEdical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry
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