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AISI 4130 Round Bar

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SAE 4130 | AISI 4130 Round Bar Manufacturer in India

Sachin Steel is a trusted manufacturer and supplier of premium AISI 4130 round bars, engineered to meet the rigorous demands of modern industries. Our 4130 alloy steel round bars are renowned for their strength, durability, and versatility, making them ideal for aerospace, automotive, oil & gas, and construction applications. We ensure precise production techniques and stringent quality control to deliver round bars that perform reliably under high-stress conditions.

Our 4130 round bars feature a carefully balanced chemical composition, including carbon, chromium, manganese, and molybdenum. Carbon enhances hardness and wear resistance, while chromium provides superior corrosion and oxidation protection. Manganese contributes to toughness and overall durability, and molybdenum boosts strength and heat resistance. This combination of elements ensures that we 4130 round bars maintain excellent mechanical properties, even in challenging operating environments.

Manufactured using state-of-the-art machinery and advanced metallurgical processes, our round bars are consistent in quality, meeting national and international standards. Available in various sizes, specifications, and custom dimensions, they cater to a wide range of industrial needs.

At Sachin Steel, we prioritise reliability and customer satisfaction by delivering tailored solutions for specific project requirements. Whether for high-pressure applications, critical components, or specialised engineering tasks, our 4130 round bars provide long-lasting performance, making them a preferred choice for industries that demand precision and quality.

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Manufacturer of ASTM AISI AS 4130 Bright Bars, High-Quality 4130 Alloy Steel Bars, Supplier of CrMo 4130 Hollow Bars in Mumbai, Alloy Steel AISI 4130 Round Bars, Grade 4130 Alloy Square Bars, Ready Stock Available.

Table Of Content

What is AISI 4130 Round Bar?

SAE 4130 is a versatile alloy steel known for its excellent combination of high hardness and tensile strength, attributed to its elevated chromium content. Recognised under equivalent grades such as AISI 4130 and UNS G41300, this material belongs to the alloy steel family and is widely sought for its mechanical robustness. SAE 4130 exhibits good machinability, making it ideal for manufacturing critical machine components, including crankshafts, gears, rollers, and structural arms.

This alloy finds extensive applications across various industries, including automotive, aerospace, oil and gas, and shipbuilding, due to its strength, durability, and reliability. SAE 4130 is available in forms like QT round bars and forged bars, offering superior performance under demanding conditions. With heat treatment options such as quenching, tempering, annealing, and normalisation, SAE 4130 can be tailored to meet specific engineering requirements, ensuring consistent performance and longevity.

Types of AISI 4130 Round Bar

Hex Bar

AISI 4130 Hex Bar

Bright Bar

AISI 4130 Bright Bar

hollow bar

AISI 4130 Hollow Bar

Square Bar

AISI 4130 Square Bar

Polished Bar

AISI 4130 Forged Bar

Flat Bar

AISI 4130 Flat Bar

Request Quote on Alloy AISI 4130 Round Bars
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AISI 4130 Round Bar, Carbon Steel AISI 4130 Bars Distributors, UNS G41300 Hexagonal Bars, AISI 4130 Threaded Bar, 4130 AISI Polished Bars at Best Price, AISI 4130 Bars Round Bar Manufacturer in India.

Specifications for AISI 4130 Round Bar

Alloy Steel 4130 Bar Standard ASTM AISI, ASTM A479, AMS 5513, AMS 5511, AMS 5647
Alloy Steel 4130 Bar Dimensions EN, DIN, JIS, ASTM, BS, ASME, AISI
Alloy Steel 4130 Round bar size Diameter: 3-~800mm
Alloy Steel 4130 Hex Bar size 2-100mm A/F
Alloy Steel 4130 Flat bar size Thickness: 2 -100mm
Width: 10 to 500mm
Alloy Steel 4130 Square bar size 4 to 100mm
Alloy Steel 4130 Angle bar size 3mm*20mm*20mm~12mm*100mm*100mm
Alloy Steel 4130 Rectangular Bars Section 3.0 to 12.0mm thickness
Alloy Steel 4130 Channel Bar 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness
ASTM AISI Type Alloy Steel 4130 Hollow Bar 32mm OD x 16mm ID to 250mm OD x 200mm ID)
Alloy Steel 4130 Threaded Bar Billet Size 1/2 to 495mm Diameter
Alloy Steel 4130 Rectangular Size 33 x 30mm to 295 x 1066mm
Alloy Steel 4130 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 AISI Type Alloy Steel 4130 Hollow Bar Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Alloy Steel 4130 T-Bar Surface Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
Rolled Alloy Steel 4130 Flat Bars Condition Hardened & tempered, annealed
ASTM AISI Type Alloy Steel 4130 Cold Rolled Bar Technique Alloy Steel 4130 Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
Alloy Steel 4130 Rod Processing Bar cutting to 650mm
Alloy Steel 4130 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.

Chemical Composition of AISI 4130 Round Bars

Grade C Mn Si S Cu Fe Mo
AISI 4130 0.28 – 0.33 0.4 – 0.8 0.15 – 0.35 0.04 – – 0.15 – 0.25

Alloy Steel AISI 4130 Round Bars Equivalent Grades

STANDARD UNS WERKSTOFF NR.
AISI 4130 G41300 1.7218

SAE 4130 Round Bar Dimensions

Diameter or Width Weight per meter
mm Round (Lbs) Square (Lbs)
5.0 0.33 0.44
5.5 0.41 0.52
6.0 0.48 0.61
7.0 0.66 0.83
8.0 0.85 1.10
9.0 1.10 1.41
10 1.38 1.60
11 1.65 2.09
12 1.96 2.49
14 2.66 3.39
16 3.48 4.43
18 4.40 5.59
20 5.44 6.92
22 6.56 8.37
25 8.48 10.82

Mechanical Properties of AISI 4130 / G41300 / 1.7218 Round Bars

Element Tensile Strength Yield Strength (0.2%Offset) Elongation
AISI 4130 930 735 12

SAE 4130 Round Bar Weight Chart

Diameter Weight Chart
in kg/m
3/8 0.56
7/16 0.77
1/2 1
1/8 0.06
3/16 0.14
1/4 0.25
9/16 1.22
5/16 0.39
5/8 1.56
11/16 1.89
3/4 2.25
7/8 3.07
1 4.03

Alloy Steel F1 A182 Round Bars & Rods Updated Price List

Get the latest Alloy Steel A182 F1 Round Bars price list from Sachin Steel. Click on the Request a Quote button or contact us for updated prices, stock details, and specifications. We maintain a ready inventory of standard sizes to ensure quick delivery. Offering high-quality products at competitive prices, Sachin Steel is your trusted source for Alloy Steel A182 F1 Round Bars & Rods worldwide.

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Weight Chart of EN 24 Square Bar

Size Weight
mm Kg
12 x 12 1.14
16 x 16 2.02
20 x 20 3.16
30×30 7.11
40 x 40 12.6
50 x 50 19.8
25 x 25 4.94

Physical Properties of 310 Stainless Steel Rod

SS 310/310S
Density lbm/in3Melting Point (°F)
8.0 g/cm31454 °C (2650 °F)

AISI 4130 Round Bar Uses

    • Petrochemical Industry
    • Chemical Industry
    • Oil and Gas Industry
    • Pulp & Paper Indusry
    • Power Plant Industry
    • Food Processing Industry
    • Pharmaceuticals Industry
    • Energy Industry
    • Aerospace Industry
Application Industries

FAQs About AISI 4130 Round Bar

A 4130 Round Bar is a type of chromium-molybdenum alloy steel bar known for its excellent strength, toughness, and good machinability. It is commonly used in aerospace, oil & gas, and automotive industries.

The 4130 Round Bar is specified under standards such as AISI 4130, ASTM A29, SAE 4130, and UNS G41300. Its chemical composition includes chromium and molybdenum, which provide strength, hardness, and toughness. Typical specifications cover tensile strength (approx. 560–670 MPa), yield strength, hardness, machinability, and weldability.

It is widely used in aerospace, oil & gas, automotive, defense, and machinery manufacturing for parts like gears, shafts, and aircraft components.

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