431 Stainless Steel Bars

Stainless Steel 431 Bars

What is Stainless Steel 431, and what are its key properties?

Stainless Steel 431 is a martensitic stainless steel that belongs to the 400 series of stainless steel. It is characterized by its high strength, toughness, and corrosion resistance. The main alloying elements in Stainless Steel 431 are chromium and nickel, which contribute to its excellent resistance to corrosion and oxidation. Additionally, it contains a small amount of molybdenum, which enhances its pitting and crevice corrosion resistance.

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The high tensile strength and hardness of Stainless Steel 431 make it suitable for applications that require good mechanical properties, such as shafts, bolts, and fasteners. It can also withstand elevated temperatures, making it suitable for certain high-temperature applications. Stainless Steel 431 offers a combination of strength, corrosion resistance, and heat resistance, making it a versatile material for various industrial and engineering applications.

What are the primary advantages of using Stainless Steel 431 bars in high-temperature environments?

Stainless Steel 431 bars offer several primary advantages when used in high-temperature environments. Their high heat resistance allows them to maintain their mechanical strength and integrity even at elevated temperatures.

431 Stainless Steel Bars

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This property makes Stainless Steel 431 Bars suitable for applications where other materials might experience significant degradation or deformation under thermal stress. The alloy's excellent oxidation resistance helps prevent the formation of scales or oxides on the surface of the bars, which can compromise their performance and longevity.

This oxidation resistance ensures that Stainless Steel 431 bars can maintain their corrosion resistance and structural stability even in environments with high heat and oxidative conditions. The material's martensitic structure also provides good creep resistance, enabling it to withstand long-term exposure to high temperatures without significant deformation or loss of mechanical properties. These advantages make Stainless Steel 431 bars a reliable choice for power generation, chemical processing, and automotive manufacturing applications where high temperatures are prevalent.

Stainless Steel 431 Bars & Rods Specification

SS 431 Bar Standard ASTM A276 / A479, ASME SA276 / A479
Stainless Steel 431 Bar Dimensions EN, DIN, JIS, ASTM, BS, ASME, AISI
Stainless Steel 431 Round bar size Diameter: 3-~800mm
Stainless Steel 431 Hex Bar size 2-100mm A/F
SS 431 Flat bar size Thickness: 2 -100mm
Width: 10 to 500mm
Stainless Steel 431 Square bar size 4 to 100mm
SS 431 Angle bar size 3mm*20mm*20mm~12mm*100mm*100mm
SS 431 Rectangular Bars Section 3.0 to 12.0mm thickness
ASTM A276 Type 431 Hollow Bar 32mm OD x 16mm ID to 250mm OD x 200mm ID)
SS 431 Threaded Bar Billet Size 1/2 to 495mm Diameter
Stainless Steel 431 Rectangular Size 33 x 30mm to 295 x 1066mm
431 SS Hex Bars 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
ASTM A276 SS Type 431 Hollow Bar Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
SUS 431 T-Bar Surface Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
Rolled Stainless Steel 431 Flat Bars Condition Hardened & tempered, annealed
ASTM A276 Type 431 Cold Rolled Bar Technique 431 Stainless Steel Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
431 Stainless Steel Rounds Bar Form Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc.

Stainless Steel 431 Bars & Rods Stock Availability

Stanless Steel 431 Round Bar

Round Bar

Round bars are steel bars with a smooth surface that are employed in construction projects that don't call for highly reinforced concrete works. It is frequently used on pipes, roads, small and medium-sized projects, beam and column stirrups, and stirrups.

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Stanless Steel 431 Square Bar

Square Bar

Solid metal bar with a square cross section is known as a square bar. Grill fencing, fabrications, engineering components, window grills, and the construction of water and fuel tanks are only a few of its many uses.

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Stanless Steel 431 Flat Bar

Flat Bar

Flat Bars Have Square Edges That Vary In Size And Are A Flat, Rectangular Section. This Economical Steel Product Is Distributed To The Construction, Engineering, Manufacturing, Mining, Grating, Fabrication, And Many Other Industries, And Is Appropriate For A Wide Range Of Applications.

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Stanless Steel 431 Hex Bar

Hex Bar

The Applications For The Stainless Steel Hexagonal Rods Are Various. They Are Mostly Used In Construction And Structural Applications. Because of their versatility, these rods are used as equipment in several industries, including chemical, food processing, marine, petroleum, sea water, and others.

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Stanless Steel 431 Forged Rod

Forged Bar

A billet is heated until it becomes malleable to create forged bars, which are made of steel in a manner similar to hot-rolled bars. This is where the processes diverge; forging either presses or hammers the bar to the required rough dimensions as opposed to rolling the bar to size.

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Stanless Steel 431 Rectangular Bar

Rectangular Bar

A versatile product, stainless-steel rectangular bar is used in a variety of industries, including shipbuilding, construction, and automotive. It is a common choice for use in products that will be exposed to the elements due to its resistance to oxidising and corrosion.

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Stanless Steel 431 Bright Bar

Bright Bar

Bright Bars are raw materials produced from stainless steel alloys in a cold reduction mill using a cold drawing technique. They Are Called "Bright Bars" Because of Their Geometrically Precise Molecular Structure, Extremely Smooth Surface Finish, And Constantly Bright Appearance.

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Equivalent Grades Of Stainless Steel 431 Bars

SS 431 1.4057 S43100

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Processing Of Stainless Steel 431 Bars


Heating, rolling & forming
Heating, rolling & forming
Atmospheric Cooling
Atmospheric Cooling


Bars Cutting

Products cut include Round bars, flat bars, hex bars, square bars, tubing and hollow bars, Pipe, angles, channels, beams and tees. Thickness range is 1/16″ to 28″ diameter

Bars Production Cutting

We can provide production cutting for product diameters up to 4″. We utilize production equipment to achieve these precision cuts with tight tolerances.

Bars Polishing

Products polished included all tubular products, with OD & ID polishing available, round bars, square bars, hex & flat bars, angles, uneven leg angles, beams, and other shapes.

“View Bars Dimensions & Prices, Contact us today to know stainless steel 431 round bars, square bars, hex bars best offers & prices.”

Stainless Steel 431 Bars & Rods Standard

Standard Description
ASTM A276 Specification for Stainless Steel Bars and Shapes
ASTM A314 Specification for Stainless Steel Billets and Bars for Forging
ASTM A493 Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
ASTM A564 Specification for Hot-Rolled And Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
ASTM A565 Specification for Martensitic Stainless Steel Bars, Forgings, and Forging Stock for High Temperature Service
ASTM A582 Specification for Free Machining Stainless Steel Bars
ASTM A666 Specification For Annealed or Cold-Worked Austenitic Stainless Steel Flat Bar
ASTM A484 Standard specification general requirements for stainless and heat-resisting bars, billets and forgings.
ASTM A476 Standard specification for stainless and heat-resisting steel bars and shapes for used in boilers and other pressure vessels.

Chemical Composition of SS 431 Round Bar

431 C Cr Fe Mn Ni P S
Max 0.2 17 Balance 1 2.5 0.04 0.03
Min - 15 - - 1.25 - -

Mechanical Properties of SS 431 Rods

Element Density Electrical Resistivity Modulus of Elasticity
SS 431 0.2800 lb/inch³ 70° Ohms (circ mil./ft.) 29.0 X 10^3

Stainless Steel 431 Bars & Rods Ready Stock

  • Stainless Steel 431 Cold Rolled Bar
  • 431 Stainless Steel Spring Bar
  • 431 Stainless Steel Hollow Bar
  • Stainless Steel 431 Threaded Bars
  • A276 SS 431 Polished Bar
  • 431 Stainless Steel Triangle Bar
  • 431 SS Precision Ground Bar
  • SS 431 Quenched & Tempered Bar

431 Stainless Steel Bars Applications and Uses

  • Shaft Making
  • Automobiles
  • Electric Motors & Pumps
  • Railways
  • Mining
  • Miscellaneous Fabrication
Shaft Making

SS 431 Bars in Shaft Making


SS 431 Bars in Automobiles

Electric Motors & Pumps

SS 431 Bars in Electric Motors & Pumps


SS 431 Bars in Railways


SS 431 Bars in Mining

Miscellaneous Fabrication

SS 431 Bars in Miscellaneous Fabrication

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High Quality SS 431 Bars!