• Hot Rolled Steel Round Bar S20C System 1
  • Hot Rolled Steel Round Bar S20C System 2
  • Hot Rolled Steel Round Bar S20C System 3
  • Hot Rolled Steel Round Bar S20C System 4
  • Hot Rolled Steel Round Bar S20C System 5
  • Hot Rolled Steel Round Bar S20C System 6
Hot Rolled Steel Round Bar S20C

Hot Rolled Steel Round Bar S20C

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:
16mm-360mm
Length:
6m
Net Weight:
2mt

Hot Rolled Steel Round Bar S20C

 

Product Description of Hot Rolled Steel Round Bar S20C

1. Steel grade: SAE1020, 20#, C22, S20C

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 Hot Rolled Steel Round Bar S20C

Material

       S20C

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 Hot Rolled Steel Round Bar S20C

C

Si

Mn

Cr

Ni

Cu

0.17~0.23

0.17~0.37

0.35~0.65

≤0.25

≤0.30

≤0.25

 

Photo Show of Hot Rolled Steel Round Bar S20C

Hot Rolled Steel Round Bar S20C

Packing and Delivery:

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

Delivery Detail: 45 days after receiving the deposit.

 

Usage and Applications of Hot Rolled Steel Round Bar S20C

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 you determine the strength and hardness of a steel round bar?
The strength and hardness of a steel round bar can be determined through various testing methods, such as tensile testing and hardness testing. Tensile testing involves subjecting the steel bar to a controlled pulling force until it fractures, allowing measurement of its ultimate tensile strength and yield strength. Hardness testing, on the other hand, measures the material's resistance to indentation or scratching using methods like Rockwell or Brinell hardness tests. These tests provide quantitative values that help determine the strength and hardness of the steel round bar.
Q:How do I determine the load capacity of a steel round bar?
To determine the load capacity of a steel round bar, you need to consider various factors. The load capacity of a round bar depends on its diameter, length, and the type of steel used. Here are the steps to determine the load capacity: 1. Identify the steel grade: Different steel grades have different strength properties. Common steel grades include A36, A572, and 4140. Consult the specifications or consult an engineer to determine the specific grade of the steel round bar you are working with. 2. Calculate the cross-sectional area: The cross-sectional area of a round bar can be calculated using the formula A = πr², where A represents the area and r represents the radius of the round bar. Make sure to convert the diameter to radius by dividing it by 2. 3. Determine the allowable stress: The allowable stress is the maximum stress that a material can withstand before it deforms or fails. This value can be obtained from engineering handbooks or by consulting an engineer. 4. Apply the formula for load capacity: The load capacity of a round bar can be calculated using the formula Load Capacity = Allowable Stress × Cross-sectional Area. 5. Consider safety factors: In engineering applications, it is common to apply safety factors to ensure the structure's safety. These factors depend on the specific application and the level of reliability required. Consult the appropriate safety factor for your project to determine the final load capacity. It's important to note that calculating the load capacity of a steel round bar is a complex process that requires expertise in structural engineering. If you are unsure or need precise calculations, it is best to consult a qualified engineer who can provide detailed analysis based on the specific parameters of your project.
Q:How do steel round bars compare to brass or copper bars?
Steel round bars typically have higher tensile strength and are more resistant to corrosion compared to brass or copper bars. Additionally, steel is generally a more cost-effective option. However, brass and copper bars offer better electrical conductivity and are often preferred in applications that require good thermal conductivity or an aesthetically pleasing appearance. The choice between steel, brass, or copper bars depends on the specific requirements of the application.
Q:What is the difference between a hot-rolled and a peeled steel round bar?
A hot-rolled steel round bar is produced by heating a billet or ingot until it reaches a temperature where the material can be easily shaped or formed. Once heated, the steel is rolled through a series of rollers to achieve the desired shape and size. The process of hot rolling creates a bar with a rough surface texture and a slightly rounded edge. On the other hand, a peeled steel round bar undergoes a different manufacturing process. It is first hot-rolled to achieve the desired shape and size, similar to the hot-rolled bar. However, after the initial hot rolling, the peeled bar is subjected to a mechanical peeling process. This involves removing the outer layer of the bar to achieve a smooth, shiny surface finish. The peeling process also helps to improve the dimensional accuracy and surface quality of the bar. In summary, the main difference between a hot-rolled and a peeled steel round bar lies in the surface finish and dimensional accuracy. While a hot-rolled bar has a rough surface texture and a slightly rounded edge, a peeled bar has a smooth, shiny surface finish with improved dimensional accuracy. The peeling process enhances the overall quality and appearance of the steel round bar, making it more suitable for applications where aesthetics or precision is important.
Q:How can steel round bars be protected against corrosion?
There are several methods available to protect steel round bars from corrosion. One commonly used technique involves applying a protective coating, such as paint or epoxy, to create a barrier between the steel surface and the corrosive elements in the surrounding environment. This coating effectively reduces the risk of corrosion by preventing direct contact. Another effective approach is galvanizing the steel round bars. This process involves coating the steel with a layer of zinc, which acts as a sacrificial anode. By sacrificing itself, the zinc layer prevents the steel from corroding and provides long-lasting protection. Regular maintenance and inspection play a crucial role in corrosion prevention. It is important to remove any rust or scale that may have formed on the steel round bars, as these can accelerate the corrosion process. Additionally, keeping the bars dry and free from moisture is essential, as prolonged exposure to water or humidity can lead to corrosion. In environments where corrosive chemicals are present, it may be necessary to use corrosion-resistant alloys for the steel round bars. Alloys like stainless steel or nickel alloys have higher resistance to corrosion and can withstand harsh conditions better than regular steel. Overall, protecting steel round bars against corrosion requires a combination of proper coatings, regular maintenance, and selecting appropriate materials for the specific environment in which they will be used.
Q:Can steel round bars be used for making heat exchangers?
Yes, steel round bars can be used for making heat exchangers. Steel is a commonly used material in heat exchangers due to its excellent thermal conductivity, high strength, and resistance to corrosion. Steel round bars can be easily machined and shaped to meet the specific requirements of a heat exchanger design. Additionally, steel is readily available and cost-effective, making it a popular choice for manufacturing heat exchangers in various industries. However, it is important to consider the specific application and operating conditions of the heat exchanger to ensure that the chosen steel grade is compatible and can withstand the required temperature and pressure.
Q:Can steel round bars be used for making gears?
Certainly! Gears can indeed be made using steel round bars. The reason for their widespread use in gear manufacturing lies in their outstanding strength, longevity, and ability to withstand damage. These bars can be processed, subjected to heat treatment, and molded into different types of gears, including spur gears, helical gears, and bevel gears. Steel round bars provide exceptional accuracy and dependability, making them ideal for applications demanding durable and high-performing gears, like automotive transmissions, industrial machinery, and power transmission systems.
Q:What is round steel?
Round steel is a solid strip of steel whose cross section is round. Its specifications are expressed as millimeters in diameter. For example, "50" means a round steel with a diameter of 50 millimetersRound bar is divided into three kinds of hot rolling, forging and cold drawing. The specification of hot rolled round bar is 5.5-250 millimeters. Among them, 5.5-25 rounds of small round bars are mostly supplied by straight strips. They are commonly used as reinforcing bars, bolts and various mechanical parts;
Q:How are steel round bars classified based on their shape?
Steel round bars are classified based on their shape into two main categories: hot-rolled round bars and cold-drawn round bars. Hot-rolled round bars are made by heating a steel billet until it becomes malleable and then passing it through a series of rollers to achieve the desired shape. This process results in a rougher surface texture and a slightly larger diameter compared to cold-drawn round bars. Hot-rolled round bars are commonly used in construction, engineering, and manufacturing applications where strength and durability are important. On the other hand, cold-drawn round bars are made by pulling a hot-rolled round bar through a series of dies at room temperature. This process improves the dimensional accuracy, surface finish, and mechanical properties of the steel. Cold-drawn round bars have a smoother surface texture and a more precise diameter, making them suitable for applications that require tight tolerances, such as precision machining, automotive components, and shafts for machinery. In summary, the classification of steel round bars based on their shape is determined by the manufacturing process used. Hot-rolled round bars are rougher and slightly larger in diameter, while cold-drawn round bars have a smoother surface texture and more precise dimensions. The choice between these two categories depends on the specific requirements of the application.
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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