• ASTM A36 Round Steel Bar Large Quantity in Stock System 1
  • ASTM A36 Round Steel Bar Large Quantity in Stock System 2
  • ASTM A36 Round Steel Bar Large Quantity in Stock System 3
  • ASTM A36 Round Steel Bar Large Quantity in Stock System 4
  • ASTM A36 Round Steel Bar Large Quantity in Stock System 5
  • ASTM A36 Round Steel Bar Large Quantity in Stock System 6
ASTM A36 Round Steel Bar Large Quantity in Stock

ASTM A36 Round Steel Bar Large Quantity in Stock

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 m.t.
Supply Capability:
500000 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,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
13-300mm
Length:
6-12m
Net Weight:
2mt

High Quality A36 Round Steel Bar Large Quantity in Stock

 

Product Description of High Quality A36 Round Steel Bar Large Quantity in Stock

1. Steel grade: ASTM4140, SCM440, 42CrMo, DIN1.7225

2. Length: 6M-12M
3. Diameter: 16mm-300mm

4. Product range: round bar, flat bar, square bar

5. Technique: Hot rolled, forged, cold drawn

 

Specification of High Quality A36 Round Steel Bar Large Quantity in Stock

Material

       SCM4140

Round bar

Dia(mm)

16-300mm

Process

EAF + LF + VD + Forged + Heat Treatment (optional)

Length (mm)   

Max 12m

Heat treatment

Normalized / Annealed / Quenched / tempered

Flat bar

Thickness(mm) 

8-500mm

Delivery condition

Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)

Width(mm)

70-200mm

Test

Ultrasonic test according to SEP 1921-84 D/d

Length (mm)   

Max 12m

 

Chemical Composition of High Quality A36 Round Steel Bar Large Quantity in Stock

C

Si

Mn

Cr

  Mo

 P

S

0.38~0.43

0.15~0.35

0.75~1.00

0.8~1.1

0.15~0.25

≤0.035

<0.04< td="">

 

Photo Show of High Quality A36 Round Steel Bar Large Quantity in Stock

ASTM A36 Round Steel Bar Large Quantity in Stock

Packing and Delivery:

Packing in bundle package, or as customer's requirements.

Delivery Detail: 45 days after receiving the deposit.

 

Usage and Applications of High Quality A36 Round Steel Bar Large Quantity in Stock

1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.

2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.

3. Some special material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.


Company Information

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

Astm 615 Bs4449 B500B Deformed Steel RebarsAstm 615 Bs4449 B500B Deformed Steel Rebars 

 

F A Q

1, Your advantages?

     professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

      SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3,  Factory or Trading Company?

      CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

    30% TT as deposit and 70% before delivery.

    Irrevocable L/C at sight.

5, Trading Terms?

    EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

     CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

     For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.

Q:How do steel round bars compare to cast iron bars?
Considered to be stronger and more durable than cast iron bars are steel round bars. Steel possesses a higher tensile strength and can endure greater loads and stress without distorting or fracturing. Moreover, steel exhibits superior resistance to corrosion and possesses a higher melting point in comparison to cast iron. An additional benefit of steel round bars lies in their versatility. Steel can be easily machined, welded, and shaped into various forms, making it suitable for a wide array of applications. Conversely, cast iron is brittle and challenging to manipulate. It possesses limited malleability and is prone to cracking or chipping under stress. Nevertheless, cast iron bars possess their own distinct properties that render them appropriate for specific applications. Renowned for its exceptional heat retention and distribution, cast iron proves ideal for applications such as cookware and engine blocks. It also boasts commendable vibration damping properties, which can prove advantageous in certain industrial applications. In conclusion, while steel round bars are generally regarded as superior in terms of strength, durability, and versatility, cast iron bars possess unique advantages in select applications. Ultimately, the choice between the two will depend on the specific requirements and conditions of the intended use.
Q:What is the difference between a rough turned and a hot rolled steel round bar?
A rough turned steel round bar is a type of steel bar that has been partially machined to remove imperfections and excess material, leaving a rough surface finish. This process helps to refine the dimensions and shape of the bar, making it more accurate and consistent. On the other hand, a hot rolled steel round bar is a type of steel bar that has been heated to high temperatures and then passed through a series of rollers to achieve the desired shape and size. This process results in a smooth surface finish and provides a uniform grain structure, which enhances the strength and durability of the steel. In summary, the main difference between a rough turned and a hot rolled steel round bar lies in the surface finish and manufacturing process used to produce them.
Q:What are the different surface treatments available for carbon steel round bars?
Carbon steel round bars have various surface treatments available, each serving a specific purpose and offering unique advantages. Some of the most commonly used treatments include: 1. Galvanizing: A layer of zinc is applied to the surface of the carbon steel round bar. This treatment provides exceptional corrosion resistance and significantly prolongs the steel's lifespan. 2. Black oxide coating: Also called blackening, this treatment creates a uniform, dark finish on the surface of the carbon steel round bar. Black oxide coatings offer mild corrosion resistance, improved lubricity, and a decorative appearance. 3. Chromium plating: By depositing a layer of chromium onto the carbon steel round bar's surface, typically through electroplating, this treatment enhances corrosion resistance, wear resistance, and provides a polished appearance. 4. Nitriding: Nitriding is a heat treatment process that diffuses nitrogen into the surface of the carbon steel round bar, resulting in a hard and wear-resistant layer. This treatment improves the steel's hardness and fatigue strength, making it suitable for applications requiring enhanced durability. 5. Phosphating: Phosphating is a chemical treatment that converts the surface of the carbon steel round bar into a layer of phosphate crystals. This treatment offers excellent corrosion resistance and enhances the adhesion of applied coatings or paints. 6. Powder coating: This treatment involves applying a dry powder to the surface of the carbon steel round bar, which is then cured under heat to form a protective coating. Powder coatings provide exceptional corrosion resistance, durability, and can be customized in various colors and finishes. These examples represent only a few of the available surface treatments for carbon steel round bars. The choice of treatment depends on the specific requirements of the application, such as corrosion resistance, wear resistance, aesthetics, and cost-effectiveness.
Q:What are the different safety considerations when working with steel round bars?
When working with steel round bars, there are several safety considerations that need to be taken into account. First and foremost, it is important to wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and steel-toed boots to protect against potential hazards. One of the main safety concerns when handling steel round bars is the risk of injury from sharp edges or burrs. These can cause cuts or puncture wounds if not handled with care. It is crucial to inspect the round bars for any sharp edges or burrs and file them down or use protective coverings if necessary. Another important consideration is the weight of the steel round bars. Depending on their size and length, they can be quite heavy and may require the use of lifting equipment or assistance from another person to prevent strain or back injuries. It is essential to use proper lifting techniques and avoid overexertion when moving or transporting the bars. Fire safety is also a concern when working with steel round bars. Steel can conduct heat and electricity, so it is important to take precautions to prevent sparks or heat sources from igniting flammable materials in the vicinity. Fire extinguishers should be readily available, and the work area should be well-ventilated to minimize the risk of fire or smoke inhalation. Additionally, when cutting or manipulating steel round bars, there is a potential for flying debris or metal chips. Safety goggles or a face shield should be worn to protect the eyes from these hazards. It is also important to use appropriate cutting tools and techniques to prevent accidents or injuries. Finally, it is crucial to have proper training and knowledge of the equipment and machinery used when working with steel round bars. This includes understanding the correct procedures for cutting, bending, or welding the bars, as well as being aware of any specific safety precautions related to the machinery being used. Overall, safety should always be a top priority when working with steel round bars. By following these considerations and taking the necessary precautions, the risk of accidents or injuries can be minimized, ensuring a safe working environment.
Q:What is the difference between a rough turned and a seamless steel round bar?
A rough turned steel round bar is a metal bar that has undergone a preliminary turning process to achieve a rougher surface finish. This process removes excess material and helps create a more uniform diameter by eliminating surface imperfections or irregularities. Rough turned bars are commonly used in applications where a smooth surface finish is not necessary, such as in the manufacturing of machinery or agricultural equipment. On the other hand, a seamless steel round bar is a solid metal bar that is formed without any welding or seams. It is manufactured through a process called piercing, where a solid billet is heated and pierced with a mandrel to create a hollow tube. The tube is then elongated and reduced in diameter through rolling and drawing processes until it reaches the desired dimensions. Seamless round bars are known for their superior strength and resistance to corrosion, making them suitable for applications that require high performance, such as in the oil and gas industry or automotive manufacturing. To summarize, the main distinction between a rough turned and a seamless steel round bar lies in their manufacturing processes and surface finishes. Rough turned bars are created by removing excess material to achieve a rougher surface finish, while seamless bars are formed without any welding or seams, resulting in a smooth and continuous surface.
Q:How do steel round bars perform in high-pressure applications?
Steel round bars are known for their exceptional strength and durability, making them highly suitable for high-pressure applications. When subjected to high-pressure conditions, steel round bars exhibit excellent resistance to deformation and maintain their structural integrity. This enables them to withstand the intense forces and maintain their shape, ensuring the safety and reliability of the application. Steel round bars are often used in high-pressure applications such as hydraulic systems, oil and gas pipelines, aerospace components, and high-pressure vessels. Their robust nature allows them to handle the extreme pressures experienced in these applications without failure. The high tensile strength of steel ensures that the bars do not buckle or collapse under pressure, providing the necessary support and stability required for such demanding environments. Additionally, steel round bars possess excellent corrosion resistance properties, which is crucial in high-pressure applications. They can withstand exposure to harsh chemicals, moisture, and other corrosive elements, preventing rusting or degradation over time. This corrosion resistance ensures the longevity and reliability of the steel round bars in high-pressure environments, reducing the risk of premature failure. Furthermore, steel round bars offer versatility in terms of grades and alloys, allowing for customization to meet specific high-pressure requirements. Different grades of steel, such as carbon steel, alloy steel, or stainless steel, can be utilized based on the application's demands. This versatility ensures that the steel round bars can be tailored to provide optimal performance and meet the specific pressure and temperature requirements of the application. In conclusion, steel round bars excel in high-pressure applications due to their exceptional strength, durability, and corrosion resistance properties. Their ability to withstand intense forces and maintain their shape makes them a reliable choice for various industries, including hydraulic systems, oil and gas pipelines, aerospace, and high-pressure vessels. By utilizing steel round bars, companies can ensure the safety, reliability, and longevity of their high-pressure applications.
Q:What are the common sizes of steel round bars?
The specific application and industry standards determine the varying common sizes of steel round bars. Depending on these factors, the sizes can range from 1/4 inch to 24 inches in diameter. The availability of these sizes is often in increments of 1/8 inch or 1/4 inch. It is worth noting that the sizes may differ based on the country or region. Moreover, metric sizes are also an option, with diameters generally ranging from 6mm to 600mm. The extensive selection of steel round bar sizes enables a wide range of applications across different industries.
Q:Can steel round bars be coated for improved aesthetics?
Yes, steel round bars can be coated for improved aesthetics. Coating steel round bars can enhance their appearance by providing a more polished and visually appealing surface. There are various coating options available, such as powder coating, electroplating, or painting, which can be applied to steel round bars to achieve different aesthetic effects. These coatings not only enhance the appearance of the bars but also provide additional benefits such as corrosion resistance and durability. Therefore, coating steel round bars is a common practice to improve their aesthetics in various applications including architectural, decorative, and industrial purposes.
Q:What are the different types of steel alloy compositions used for round bars?
There are several different types of steel alloy compositions used for round bars, each with its own unique properties and applications. Some of the most common steel alloy compositions used for round bars include: 1. Carbon Steel: This is the most basic and widely used type of steel alloy composition for round bars. It primarily consists of iron and carbon, with small amounts of other elements. Carbon steel round bars are known for their strength, durability, and affordability. 2. Alloy Steel: This type of steel alloy composition contains additional alloying elements such as manganese, chromium, nickel, or molybdenum. Alloy steel round bars offer enhanced strength, hardness, and resistance to wear, making them suitable for applications that require high performance and durability. 3. Stainless Steel: Stainless steel round bars are composed primarily of iron, chromium, and nickel. This composition gives them excellent corrosion resistance and makes them suitable for applications in environments with high moisture or chemical exposure. Stainless steel round bars are also known for their aesthetic appeal and are commonly used in architectural and decorative applications. 4. Tool Steel: Tool steel round bars are specifically designed to have exceptional hardness, toughness, and wear resistance. They are often used in the production of cutting tools, dies, and molds. Tool steel compositions typically include elements such as tungsten, vanadium, or cobalt to enhance their performance in specific applications. 5. Duplex Steel: Duplex steel round bars are a type of stainless steel that contains a balanced combination of austenitic and ferritic microstructures. This composition gives them excellent strength and corrosion resistance, making them suitable for applications in demanding environments, such as offshore oil and gas industry. 6. High-Speed Steel: High-speed steel round bars are designed to withstand high temperatures and maintain their hardness and toughness at elevated speeds. They are commonly used in the production of cutting tools, drills, and milling cutters. High-speed steel compositions typically contain elements such as tungsten, molybdenum, or cobalt. These are just a few examples of the different types of steel alloy compositions used for round bars. The choice of composition depends on the specific application, desired properties, and performance requirements.
Q:What is the difference between a rough turned and a polished steel round bar?
A rough turned steel round bar has undergone a preliminary machining process that removes surface imperfections and excess material, providing a slightly smoother finish. On the other hand, a polished steel round bar has undergone further polishing or grinding processes to achieve a much smoother and aesthetically appealing surface finish.

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