AISI 4130 bars are a type of steel alloy that is used in various applications across numerous industries. They are known for their strength and durability, making them ideal for use in construction, automotive, and industrial projects.

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AISI 4130 Bars are often used in the petroleum industry due to their high corrosion resistance and tolerance to heat. They can be found in oil rigs and pipelines, as well as other drilling equipment. Moreover, they are used to make aircraft components such as engine mounts, landing gear parts, shafts, and more. These 4130 Alloy Steel Bars can also be found in automotive parts like steering columns or suspension systems. Furthermore, they can be used for machinery part fabrication as well as tool-making due to their strength and wear-resistance properties.

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AISI 4130 Bars

AISI 4130 Bars

AISI 4130 Round Bars come in two main categories: flat bars and round bars. The flat bar variety is available in widths ranging from 1/4 inch (6mm) up to 8 inches (200mm). It is commonly seen with a thickness between 0.25 inches (6 mm) to 4 inches (100 mm). On the other hand, round bars have diameters from 1/4 inch (6mm) up to 16 inches (400mm). The most common wall thickness for these types of bar range from 0.125 inches (3 mm) up to 6 inches (150 mm). AISI 4145H MOD, AISI 4330V MOD and many more grades are also available.

Alloy Steel AISI 4130 Round Bars provide many advantages over other types of steel alloys such as stainless steel or carbon steel. For starters, these bars provide better mechanical properties than most other metals due to their combination of chromium-molybdenum content which provides excellent tensile strength while remaining ductile enough for bending or forming processes. These 4130 AISI Bars materials give superior weldability compared to other steels thanks to their low carbon content which improves weld penetration during welding processes. This makes it easy for fabricators or welders to work with these materials without having any issues with cracking or warping after the welding processes have been completed. AISI 4130 bars are highly resistant to corrosion when compared with stainless steel alloys making them suitable for use in harsh environments where exposure to moisture is a major factor. Different types of products are available, such as Alloy 20 Round Bars, Equal Tees, etc.

AISI 4130 is an incredibly versatile type of steel alloy that can be used across multiple industries including aerospace engineering, automotive manufacturing, and oil rigging operations among others due to its superior mechanical properties including tensile strength and ductility as well as excellent weldability helps to its low carbon content which prevents cracking or warping after welding processes have been completed.

What is AISI 4130 steel?

AISI 4130 steel is a low-alloy steel containing chromium and molybdenum as strengthening agents. It is known for its toughness, high strength, and good hardenability.

How can AISI 4130 steel bars be heat-treated?

AISI 4130 Steel Bars can be heat-treated through quenching and tempering. They are typically quenched in oil or water and then tempered at a specific temperature to achieve the desired mechanical properties.

Are AISI 4130 steel bars weldable?

AISI 4130 Steel Bars are weldable, but the process should be done with caution to avoid cracking and distortion. Preheating and post-weld heat treatment are typically required to prevent these issues. Consult a welding professional for more detailed information about welding AISI 4130 Bars.

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AISI 4130 Specification

Diameter : 8mm-3000mm

Length : 3,000-10,000mm

Thickness : 36" x 72" / 72" x 144"

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AISI 4130 Chemical Composition

C Si Mn P S Cr Mo Ni Cu
Min. 0.28 0.15 0.40 0.80 0.15
Max. 0.33 0.35 0.60 0.025 0.025 1.10 0.25 0.25 0.35

AISI 4130 Mechanical Properties

Tensile Test, 75K, ASTM A370, Longitudinal, room temperature, on QTC, per batch
Yield Strength at 0.2% Tensile Strength Elongation
Reduction of Area
psi MPa psi MPa
Min. 75 000 517 95 000 517 18 35
Impact Test, ASTM A370, Charpy V notch, Longitudinal, Temperature - 75°F (- 60°C), on QTC, per batch
Min. Average 20 ft-lb (27 J) and only one single less than 20 ft-lb (27 J) and min. 15 ft-lb (20 J) Min. Lateral Expansion 0.015 in. (0.38 mm)
Surface Hardness test on each product
Min: 207 HB Max: 234 HB (22HRC)

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