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SAE 4340 Round Bars Manufacturer, AISI 4340 Alloy Steel Forged Bars, SAE 4340 Bars stockist, Exporter.

As an acclaimed enterprise of the industry, Super Freeze India is involved in offering a vast array of AISI / SAE 4340 Round Bars as a manufacturer, exporter, stockiest and supplier to our domestic and global clients. Obtainable in varied dimensions, offered AISI 4340 Round Bars is massively acknowledged for its tough construction, extended functional life and high strength. CS AISI / SAE 4340 Round Bars, AISI / SAE 4340 Rods manufacturer, 4340 Round Bars Stockists, CS Round Bars Supplier Manufacturers Exporters. SAE 4340 Bars has some of the outstanding features such as Sturdy design, Low maintenance, Rust proof, Robust design, Durable, Flawless finish, and more. With respect to national and international quality of raw materials, we also offer these round bars and rods in customized sizes and thicknesses as per specific demands by our esteemed clients at market leading prices.


Specification :


Dimensions EN, DIN, JIS, ASTM, BS, ASME, AISI
Size 5 mm To 500 mm
Diameter 0.1 mm to 100 mm
Length 100 mm To 6000 mm Long & Above
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Form Round, Square, Hex (A/F),Flate, Rectangle, Billet, Ingot, Forging Etc.
Stainless Steel ASTM A-479, A-182, 304, 304L,304H,304S, 316, 316L,316 Ti, 316H, 309, 310, 310S, 317L, 321, 347, 409, 410, 420, 430, 440, 446, 904L. etc.
Duplex Steel 2205, 31803, 32750, 32760, 2101, 2304.
Alloy Steel A-182 - F5, F9, F11, F12, F21, F22 & F91
Special Grade Stainless Steel 17-4 PH, Alloy 800, Alloy 600. Hastelloy C276.
Carbon Steel A 105, LF 2, Duplex Steel.

CARBON STEEL AISI/SAE 4340 Bar 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

CARBON STEEL AISI/SAE 4340 Bar Chemical Composition

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

CARBON STEEL 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


Ready Stock Available of CARBON STEEL AISI/SAE 4340 Round Bar


AISI/SAE 4340 Carbon Steel Black Bars AISI/SAE 4340 Carbon Steel Bar AISI/SAE 4340 Carbon Steel Bright Bar
AISI/SAE 4340 Carbon Steel Square Bar AISI/SAE 4340 Carbon Steel Hex Bar AISI/SAE 4340 Carbon Steel Rods

Types of Round Bar Available


Buttweld Fittings

Round Bar

Buttweld Fittings

Square Bar

Buttweld Fittings

Flat Bar

Buttweld Fittings

Hex Bar

Buttweld Fittings

Triangle Bar

Buttweld Fittings

Hollow Bar



Marking & Packing


Our Nickel Alloy 2.4066 round bars are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All Nickel Alloy UNS N02200 bar are marked with Grade, Lot No, Size and our trade mark. We can also make custom marking on our products on Speical request from Purchaser.


Quality Assurance


Super Freeze India all Nickel Alloy 200 round bars, Nickel Alloy 200 bright bars and Nickel 200 hex bars are subject to strict inspection at each stage starting from material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, DIN, EN, and JIS codes and standards. We can also appoint official certified Inspection Agencies upon request of our clients so that they can witness the material reports, dimensions and quality conformity of products.

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