Stainless Steel 431 Round Bars are a specialized type of stainless steel known for their exceptional strength, durability, and corrosion resistance. These round bars are part of the martensitic stainless steel family, which is valued for its toughness and hardness. Stainless Steel 431 is a versatile material with a range of applications in various industries.

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


  • WNR



    ASTM A276 / SA276


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

Composition and Properties: Stainless Steel 431 is a martensitic stainless steel characterized by its high chromium content (around 16-18%) and moderate nickel content (approximately 1.25-2.5%). This composition imparts excellent corrosion resistance while providing exceptional strength, hardness, and wear resistance. Additionally, it contains small amounts of other elements like sulfur and molybdenum, which further enhance its properties.

High Strength and Toughness: Stainless Steel 431 is well-known for its exceptional strength and toughness. It can withstand significant mechanical stress and is often used in applications that require high tensile and impact strength. This makes it suitable for components subjected to heavy loads and in industries like aerospace, automotive, and manufacturing where robustness is crucial.

Corrosion Resistance: While not as corrosion-resistant as austenitic stainless steels, Stainless Steel 431 still provides good resistance to atmospheric corrosion and mild chemical environments. Its ability to withstand moderate corrosion, combined with its strength, makes it a preferred choice in various applications where exposure to corrosive elements is a concern.

Heat Treatment: Stainless Steel 431 can be heat-treated to achieve different levels of hardness and toughness. This flexibility in heat treatment allows for tailoring the material's properties to specific applications, further enhancing its versatility.

431 SS Rod, 431 Stainless Steel Precision Ground Rod, ASTM A276 SS 431 Round Bars, 431 SS Bright Bar, Stainless Steel 431 Rectangular Bar, 431 Stainless Steel Half Round Bar, SS 431 Bar Manufacturers in India.

fevicon-logo SS 431 Round Bar Specifications

Standard ASTM A479, ASTM A276, AMS 5511, AMS 5513, AMS 5647
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.

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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

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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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-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
UNS S43100 Round Bar SS 431 Bar Manufacturer in Mumbai
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SS 431 Rod Weight Calculator 431 Stainless Steel Round Bar Tolerances

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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