• Forged Alloy Steel AISI 4140 Round Bar System 1
  • Forged Alloy Steel AISI 4140 Round Bar System 2
  • Forged Alloy Steel AISI 4140 Round Bar System 3
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  • Forged Alloy Steel AISI 4140 Round Bar System 5
  • Forged Alloy Steel AISI 4140 Round Bar System 6
Forged Alloy Steel AISI 4140 Round Bar

Forged Alloy Steel AISI 4140 Round Bar

Ref Price:
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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
5 m.t.
Supply Capability:
100000 m.t./month

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Item specifice

Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,CE
Thickness:
as required
Length:
as required
Net Weight:
as required

Product Description of AISI 4140 Round Bar 

AISI 4140 round bar are flawless completely free from cracks and flakes, and does not contain any other imperfection,such as porosity non-metallic inclusions segregations, hard spots and residual tensions to a degree affecting their strength and durability.

Product:forged alloy steel AISI 4140 round bar
Material:4145, 42CrMo4, 4140, SAE8620 ,4340 etc.
Supplier Range:
OD.200-800mm,Weight≤20T
Delivery time:30 days after receive the deposit.
Produce Process:EAF + LF + VD +(ESR) + Forged + Heat Treatment (optional)
Delivery condition:Hot forged, Heat-treatment (Normalized / Annealed / Quenched / tempered), Rough machining.
Surface Finish:Black, Peeled, Turned & Polished
Payment Term:30% advance by T\T; Balance pay before the shipment against shipping documents or irrevocable LC at sight
Technical Data:Chemical Composition, Physical Properties and Mechanical Testing according to the customer's requirement and Standard.

The steel is suited to applications where high surface pressures exist and friction is to be resisted as in the case of severely loaded gears, axles and pinions. It is used extensively in most industry sectors for applications requiring higher tensile strength.



Packing And Delivery

PackageSeaworthy package (or as customer require)
MOQ1 Pieces
Delivery30 days (can be short if we have stock)
Payment30%T/T in advanced+70% balanced;irrevocable L/C at sight
RemarksAll-risk insurance and accept the third party test
PortTianjin/Qingdao/Shanghai

Forged Alloy Steel AISI 4140 Round Bar


Equipment

We are well-equipped with 2000-Ton Hydraulic press, 15-Ton Hydraulic manipulator, various kinds of Lathe and boring machine, product range OD 200mm-800mm, Length less than 9m.

Forged Alloy Steel AISI 4140 Round Bar


Q:Can steel round bars be used in the production of musical instruments?
Yes, steel round bars can be used in the production of musical instruments. Steel is a versatile material that offers a range of desirable properties such as strength, durability, and resonance. While wood is commonly used in the construction of musical instruments, steel can be employed in certain applications to enhance the instrument's sound and performance. Steel round bars can be utilized in the manufacturing of various components, such as keys or valves for wind instruments like saxophones or trumpets. These bars can also be used to create the internal support structures in instruments like guitars or cellos, providing stability and enhancing tonal qualities. Additionally, steel round bars can be used in the construction of percussion instruments such as steel drums or xylophones, where their strong and resonant properties are highly desirable. Overall, while steel is not as commonly used as wood in musical instrument production, it can certainly be employed in specific cases to achieve desired sound characteristics and structural integrity.
Q:Are steel round bars suitable for outdoor applications?
Indeed, outdoor applications find steel round bars to be highly suitable. The remarkable durability and strength of steel have established it as a preferred option for numerous outdoor structures and applications. Construction, fencing, gates, outdoor furniture, and other outdoor structures frequently rely on steel round bars owing to their ability to withstand corrosion and weathering. Moreover, the resistance of steel round bars against outdoor elements can be further fortified through painting or coating.
Q:Are steel round bars available in different lengths?
Yes, steel round bars are available in different lengths.
Q:Can steel round bars be used for making conveyor belts or rollers?
Certainly, conveyor belts or rollers can be made using steel round bars. Steel possesses remarkable tensile strength and durability, rendering it appropriate for tasks involving heavy loads or incessant motion. The round bars can be utilized to establish the conveyor belt or roller's structural framework or support system, ensuring stability and rigidity. Furthermore, steel exhibits resistance to wear and tear, as well as the capability to endure high temperatures, thereby making it perfect for industrial environments. Nevertheless, it is crucial to take into account other aspects such as the conveyor system's specific requirements, the type of material being transported, and any potential corrosion concerns that might arise.
Q:Can steel round bars be used for making conveyor belts or rollers?
No, steel round bars are not typically used for making conveyor belts or rollers. Conveyor belts and rollers are usually made from materials such as rubber, polyurethane, or other flexible and durable materials that can withstand the constant movement and friction involved in conveying items.
Q:The diameter of 20 solid round steel bend into a circle, what machine bending?
Hydraulic steel bar cutting and bending machineThe hydraulic steel bar cutting and bending machine is a dual-purpose machine which uses hydraulic technology to cut and bend steel bars. It has high automation and convenient operation.Structure: hydraulic type steel bar cutting and bending machine mainly consists of hydraulic transmission system, cutting mechanism, stubborn mechanism, engine, airframe and so on.Working principle: an electric motor drives two sets of plunger hydraulic pumps, one group pushes off the piston, and the other drives the rotary hydraulic cylinder to drive the rotary working disc to rotate.Cut off the working principle of mechanism in cutting piston is arranged in the middle column and the center of the valve spring, in turn, due to the action of the spring, the middle hole make the center column left valve hydraulic cylinder, high pressure oil is also from the eccentric shaft road to tank. In the cut, a human powered piston, the center hole center column valve blocked the hydraulic cylinder, the plunger pump to the hydraulic cylinder through high pressure oil into the oil valve, high pressure to push the piston movement, the piston drives the cutter to cut tendons. At this point, the thrust of the pressure spring is greater than the pressure in the hydraulic cylinder, the valve will return to its original position, and the hydraulic oil will flow along the oil channel of the central oil hole back into the tank. The return stroke of the piston is achieved by the rebound force of the plate spring.
Q:What are the different types of steel round bar heat treatments?
Some common types of heat treatments for steel round bars include annealing, normalizing, quenching and tempering, and case hardening.
Q:What are the different grades of steel round bars available?
Steel round bars are available in various grades, each possessing unique properties and applications. Some commonly used grades include: 1. Mild Steel: This grade is the most affordable and widely used option. It contains a low carbon content, making it easy to weld, cut, and shape. Mild steel round bars are suitable for general construction, fabrication, and manufacturing projects. 2. Carbon Steel: Carbon steel round bars have a higher carbon content compared to mild steel, resulting in greater strength and hardness. They are commonly employed in applications requiring high strength, such as machinery parts, shafts, and axles. 3. Alloy Steel: To improve specific properties, alloying elements like chromium, nickel, manganese, or molybdenum are added to produce alloy steel round bars. These bars offer enhanced strength, toughness, and wear resistance, making them ideal for automotive parts, gears, and tools. 4. Stainless Steel: Stainless steel round bars are corrosion-resistant and possess excellent mechanical properties. They find extensive use in industries like construction, food processing, and medical equipment manufacturing. Different grades of stainless steel, such as 304, 316, or 410, offer varying levels of corrosion resistance and strength. 5. Tool Steel: Tool steel round bars are specifically designed for tool and die production. They exhibit high hardness, wear resistance, and heat resistance. Commonly utilized tool steel grades like D2, A2, or O1 are employed in the manufacture of cutting tools, molds, and dies. Choosing the appropriate grade of steel round bars for your project is crucial and should consider factors such as strength, corrosion resistance, hardness, and machinability. Seeking advice from a steel supplier or an engineer can assist in identifying the most suitable grade for your specific application.
Q:What are the different international standards for steel round bars?
Steel round bars have several international standards that define their specifications and requirements. Some commonly used standards are as follows: 1. ASTM A36/A36M: This standard focuses on carbon structural steel shapes, plates, and bars of structural quality. It is used in the construction of bridges and buildings through riveting, bolting, or welding. It specifies the chemical composition, mechanical properties, and dimensional tolerances for steel round bars. 2. ASTM A615/A615M: This standard lays down the requirements for deformed and plain carbon-steel bars used for concrete reinforcement. It covers bars with diameters ranging from 6 to 60 mm and provides guidelines for chemical composition, mechanical properties, and bend tests. 3. BS 4449: This British Standard deals with steel bars used to reinforce concrete. It outlines the requirements for carbon steel bars in different grades, such as B500B and B500C. It specifies the tensile properties, chemical composition, and dimensional tolerances for these steel round bars. 4. DIN 17100: This German standard specifies general structural steels, including steel round bars. It provides guidelines for the chemical composition, mechanical properties, and technical delivery conditions for various grades of steel bars. 5. JIS G3101: This Japanese Industrial Standard covers general structure rolled steel used for various applications. It includes steel round bars and defines the chemical composition, mechanical properties, and dimensional tolerances for different grades of steel bars. 6. ISO 6935-2: This International Organization for Standardization standard specifies the requirements for hot-rolled steel bars used for concrete reinforcement. It provides guidelines for the chemical composition, mechanical properties, and dimensional tolerances of steel round bars used in construction. These examples represent only a few of the international standards available for steel round bars. To ensure compliance and quality of the steel round bars used, it is essential to consult the appropriate standard based on the specific application and requirements.
Q:Can steel round bars be used in the automotive parts industry?
Yes, steel round bars can be used in the automotive parts industry. They are commonly used in the manufacturing of various automotive components such as axles, drive shafts, suspension systems, and chassis parts. The high strength and durability of steel make it an ideal material for these applications, ensuring the safety and reliability of vehicles.

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