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AISI/SAE 4340 Round Bar Supplier, Dealer, and Stockist in India

Neptune Alloys is a High-Quality AISI/SAE 4340 Round Bar Supplier in India We are a leading supplier of AISI/SAE 4340 Round Bar in Mumbai and nearby areas. Our AISI/SAE 4340 Round Bar is manufactured according to international ASTM, ANSI, API, and DIN standards. Mail us for easy and quick quotes at factory prices.

AISI/SAE 4340 Round Bar Supplier- Product Description

AISI/SAE 4340 Round Bar is a form of a bar with a round shape. AISI/SAE 4340 Alloy Steel Round Bars are used for various purposes such as manufacturing grills, furniture, railings, etc. They are widely used in different industries worldwide. Neptune Alloys are a well-known supplier of AISI 4340 Round Bar in Mumbai. Static pressure, corrosion resistance, strong and sturdy construction, and so on are some of the great features of these round bars. SAE 4340 Alloy Steel Round Bars are well-known for their dimensional correctness as well as their exquisite quality. We are also the dealers of ASTM A193 B16 Round Bar and so on.

AISI/SAE 4340 Round Bar Supplier- Characteristics

AISI/SAE 4340 Round Bar is what its name suggests, round(cylindrical) metal bar/rod. AISI/SAE Alloy Steel Round Bar is available in a variety of materials and grades, which include - a) AISI/SAE 4140 Round Bar, b) AISI/SAE 4340 Round Bar and more. AISI/SAE 4340 Steel Bars are available in different diameters and sizes. They range from 3 mm up to 100 mm in diameter and length. Also available as per client drawing or requirement.

AISI/SAE 4340 Round Bar Supplier- Specifications, Standard, & Materials

  • Grade: 4340
  • Specification: Alloy Steel 4340 Bar
  • Square bar size: 4 to 100mm
  • Section: 3.0 to 12.0mm thickness
  • Round bar size: Diameter: 3-~800mm
  • Angle bar size: 3mm*20mm*20mm~12mm*100mm*100mm
  • Hex: Bar size2-100mm A/F
  • Flat Bar: Thickness: 2 -100mm, Width: 10 to 500mm
  • Channel Bar: 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm liickness
  • Rectangles Size: 33 x 30mm to 295 x 1066mm
  • Hollow Bar: 32mm OD x 16mm ID to 250mm OD x 200mm ID)
  • Billet Size: 1/2" to 495mm Diameter
  • Round Bar Standard Dimensions: Diameter / Height:

    AISI/SAE 4140 alloy steel Rod and Bar Sizes : 0.5 inches / 0.625 inches / 0.75 inches / 0.875 inches / 1.0 inches / 1.125 inches / 1.25 inches / 1.375 inches / 1.5 inches / 1.75 inches / 2.0 inches / 2.25 inches / 2.5 inches / 2.75 inches / 3.0 inches / 3.25 inches / 3.5 inches / 3.75 inches / 4.0 inches / 4.25 inches / 4.5 inches / 5.0 inches / 5.25 inches / 5.5 inches / 6.0 inches / 7.0 inches / 8.0 inches / 9.0 inches.
  • Surface: Bright, Hot-Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
  • Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
  • Technique: AISI/SAE 4140 alloy steel Hot-Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
  • Condition: Hardened & tempered, annealed
  • Finish: Cold (bright) drawn, centreless ground, Hot-Rolled, smooli turned, peeled, slit rolled edge, Hot-Rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
  • 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.

AISI/SAE 4340 Round Bar/Rods Equivalent Grades

Standard AISI / SAE 4340
UNS -
WERKSTOFF NR. 34CrNiMo6, 40NiCrMo8-4
BS 970 817M40, En24
UNI 35NiCrMo6 (KB), 40NiCrMo7 (KB)
JIS SNCM 447, SNB24-1-5
EN name 34CrNiMo6
EN # 1.6582, 1.6562

AISI/SAE 4340 Round Bar Chemical Composition

  C Mn Si S P Cr Ni Mo
SAE - 4340 .38- .43 .60 - .80 .15 - .35 .035 MAX .040 MAX .70 - .90 1.65 -2.00 .20 - .30

AISI/SAE 4340 Bar Mechanical Properties

Tensile strength kgf/mm² Yield strength kgf/mm² Elongation % Cross section reduction rate % Impact value Hardness Hb
≧100 ≧90 ≧16 ≧45 ≧7 293~352

AISI/SAE 4340 Round Bar Supplier and Stockist-

AISI/SAE 4340 Round Bar suppliers

AISI/SAE 4340 Round Bar

Neptune Alloys offers Alloy Steel Round Bar in AISI/SAE 4340 Round Bars and AISI/SAE 4140 Round Bars. These Round Bars are heavy-duty and are used in various industries. Neptune Alloys are the best in supplying a variety of AISI/SAE 4340 Alloy Steel Round Bar. We offer a wide range of AISI/SAE 4340 Steel Round Bar to

AISI/SAE 4340 Round Bar Stockist- Uses & Advantages of AISI/SAE 4340 Round Bar

Neptune Alloys' AISI/SAE 4340 Round Bars' ease of operation, repair, and adaptability lend it to extensive industrial use, withstanding pressures up to 1000 bar and temperatures up to 752 °F (400 °C), depending on the design and raw materials used. Sizes typically range from 6mm to 90mm (different sizes available per requirements). The advantage of Neptune Alloys' AISI/SAE 4340 Round Bars is that they are corrosion resistant and are more durable than other AISI/SAE 4340 Round Bars in the market. Our AISI/SAE 4340 Round Bar is widely used in Chemical Industries and Pharmaceutical Industries.

What are the different types of round bars, and how do they differ?

Round bars are cylindrical metal bars that are commonly used in construction, manufacturing, and other industrial applications. There are several different types of round bars, each with unique characteristics and benefits.

Stainless steel round bars are highly resistant to corrosion and can withstand high temperatures, making them ideal for use in harsh environments. Carbon steel round bars are strong, durable, and cost-effective, making them a popular choice for construction projects. Aluminum round bars are lightweight and have excellent conductivity, making them ideal for use in electrical applications. Brass round bars are highly malleable and can be easily shaped and formed, making them a popular choice for decorative applications. The choice of round bar depends on the application, the required level of strength and durability, and the desired properties of the material.

Neptune Alloys are the best in the supply variety of Round Bar. We offer a wide range of Round Bar too. Round Bars are available in different Materials:

Hastelloy Round Bar supplier

Hastelloy Round Bar

Hastelloy Round Bar, also known as nickel-molybdenum alloy round bar and is used in highly corrosive environments.

Stainless Steel Round Bar supplier

Stainless Steel Round Bar

Neptune Alloys Stainless Steel Round Bar can quickly and easily be fitted and turned into tools or used with different applications.

Carbon Steel Round Bar supplier

Carbon Steel Round Bar

Carbon Steel Round Bar, as the name suggests, has comparatively higher carbon content than its peers. There are LCS Round Bars and HCS Round Bars.

Titanium Round Bar supplier

Titanium Round Bar

Titanium Round Bar is designed for just about every Industrial application. They are made from bar stocks sand cast in different Titanium Grades.

Nickel Round Bar supplier

Nickel Round Bar Supplier

Neptune Alloys offers Nickel 200 Round Bar and Nickel 201 Round Bar, which meet all the customer requirements. We also take custom orders.

Duplex Steel Round Bar Supplier

Duplex Steel Round Bar Supplier

Duplex Steel Round Bar and Super Duplex Steel Round Bar are made in grades such as 2205, S1803, S32750, and S32760.

Super Duplex Round Bar Supplier

Super Duplex Round Bar Supplier

Super Duplex Round Bars' ease of operation, repair, and adaptability lend them to extensive industrial use.

Inconel Round Bar Supplier

Inconel Round Bar Supplier

Inconel Round Bar is a form of a bar in a round shape. Inconel Round Bars are used for various purposes such as manufacturing grills, furniture, railings, etc.

Monel Round Bar Supplier

Monel Round Bar Supplier

Monel Round Bars are available in different diameters and sizes. They range from 3 mm up to 100 mm in diameter and length.

Alloy 20 Round Bar Supplier

Alloy 20 Round Bar Supplier

Neptune Alloys are the best in the supply variety of Alloy 20 Round Bar. We offer a wide range of Alloy 20 Round Bar.

Alloy A286 Round Bar Supplier

Alloy A286 Round Bar Supplier

A286 Round Bars are that they are corrosion resistant and are more durable than other Alloy A286 Round Bars in the market.

Nitronic 50 Round Bar Supplier

Nitronic 50 Round Bar Supplier

Nitronic 50 Round Bars are made of a high-purity nickel alloy often used in electrical resistance thermometers.

Nitronic 60 Round Bar Supplier

Nitronic 60 Round Bar Supplier

Nitronic 60 Round Bar is manufactured according to international ASTM, ANSI, API, and DIN standards.

Nimonic Round Bar Supplier

Nimonic Round Bar Supplier

Neptune Alloys offers Nimonic Round Bar in Nimonic 75 Round Bars and Nimonic 76 Round Bars.

ASTM A193 B16 Round Bar Supplier

ASTM A193 B16 Round Bar Supplier

ASTM A193 B16 Round Bars are used for various purposes such as manufacturing grills, furniture, railings, etc.

Waspalloys Round Bar Supplier

Waspaloys Round Bar Supplier

Neptune Alloys is a High-Quality Waspaloy Round Bar supplier in Mumbai, Maharashtra, India.

Invar 36 Round Bar Supplier

Invar 36 Round Bar Supplier

Neptune Alloys are a well-known supplier of Invar 36 Round Bar in Mumbai. Invar 36 is a low-expansion nickel-iron alloy with a nickel content of 36%.

Zeron 100 Round Bar Supplier

Zeron 100 Round Bar Supplier

Zeron 100 Round Bars are available in different diameters and sizes. They range from 3 to 6 meters Length in diameter and length.

AISI/SAE 4340 A105 Round Bar / AISI/SAE 4340 A106 Round Bar Supplier and Stockist- Neptune Alloys

Neptune Alloys mainly supplies Industrial AISI/SAE 4340 Round Bar. EachAISI/SAE 4340 Round Bar passes stringent quality control tests at different production stages. Each AISI/SAE 4340 Round Bar is perfect. The optimal quality of raw material is used for manufacturing. Each AISI/SAE 4340 Round Bar is tested at our in-house modern facilities per the latest Indian / International Standards of Quality for Testing. Standardization of AISI/SAE 4340 Round Bar components manufacturing is done, ensuring easy interchangeability; hence, maintenance becomes easy and quick.

Neptune Alloys is one of the best in business and the world's leading supplier of AISI/SAE 4340 Alloy Steel Round Bar in Mumbai

Choose Neptune Alloys for optimum quality SAE 4340 Round Bar made with high-grade steel globally approved with Best Service in the business.

We supply AISI 4340 Round Bars from a genuine guaranteed raw material with a material test certificate, Mill TC 3.1.b available with all supplies.


Round Bar Supplier in India, Sheet and Plate Supplier in India, Wire Supplier in India, We supply Forged Circle and Ring to the following cities in India
Bengaluru Mumbai Chennai Hyderabad Kolkata Pune
New Delhi Ahmedabad Jaipur Surat Salem Gandhinagar
Bhiwandi Tiruppur Sivakasi Jamnagar Thiruvananthapuram Rajahmundry
Bhubaneswar Vijaywada Firozabad Thane Rajkot Bharuch
Panna Raipur Cochin Ludhiana Panipat Durgapur
Peenya Bhopal Channapatna Kharagpur Nashik Bareilly
Varanasi Haldia Rourkela Bangalore Moradabad Indore
Visakhapatnam Trivandrum Pithampur Dibrugarh Angul Gwalior
Coimbatore Kannur Nagpur Vadodara Rudrapur Noida
Agra Bhagalpur Jamshedpur Bhilai Lucknow kanpur

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