• AISI4140 Forged Round Bar with Turned Surface System 1
  • AISI4140 Forged Round Bar with Turned Surface System 2
  • AISI4140 Forged Round Bar with Turned Surface System 3
  • AISI4140 Forged Round Bar with Turned Surface System 4
  • AISI4140 Forged Round Bar with Turned Surface System 5
  • AISI4140 Forged Round Bar with Turned Surface System 6
AISI4140 Forged Round Bar with Turned Surface

AISI4140 Forged Round Bar with Turned Surface

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 m.t.
Supply Capability:
50000 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:
16-300mm
Length:
6-12mm
Net Weight:
2mt

AISI4140 Forged Round Bar with Turned Surface

 

Product Description of AISI4140 Forged Round Bar with Turned Surface

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 AISI4140 Forged Round Bar with Turned Surface

Material

       AISI4140

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 AISI4140 Forged Round Bar with Turned Surface

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 AISI4140 Forged Round Bar with Turned Surface

AISI4140 Forged Round Bar with Turned Surface

Packing and Delivery:

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

Delivery Detail: 45 days after receiving the deposit.

 

Usage and Applications of AISI4140 Forged Round Bar with Turned Surface

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:45# what are the main rounds for?
45# round bars are divided into three kinds: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Of them: 5.5-25 mm small round bars are mostly supplied by straight strips. They are used as reinforcing bars, bolts and various mechanical parts. They are more than 25 millimeters of round steel. They are mainly used in the manufacture of mechanical parts or seamless steel tube billets.
Q:Can steel round bars be used in high-temperature applications?
Yes, steel round bars can be used in high-temperature applications as they have excellent thermal resistance and can withstand elevated temperatures without losing their structural integrity.
Q:How do steel round bars perform under static or stationary loads?
Steel round bars are known for their exceptional performance under static or stationary loads. Due to their high strength and durability, steel round bars have the ability to withstand heavy weights or forces without undergoing significant deformation or failure. When subjected to static loads, these bars distribute the applied force evenly throughout their structure, ensuring stability and structural integrity. One of the key advantages of steel round bars is their resistance to bending or sagging under static loads. Their inherent stiffness allows them to maintain their shape and prevent any significant deflection, making them ideal for applications where load-bearing capacity is crucial. Moreover, steel round bars possess a high yield strength, which means they can withstand large amounts of stress before permanent deformation occurs. Furthermore, steel round bars exhibit minimal creep under static loads, meaning they maintain their shape and dimensions over time, even when subjected to sustained pressure. This quality is especially important in structures or equipment that are expected to support constant loads for extended periods. Another factor that contributes to the excellent performance of steel round bars under static loads is their resistance to corrosion. Steel is inherently resistant to rust and oxidation, making it suitable for applications in various environments, including those with high humidity or exposure to moisture. In summary, steel round bars are highly reliable and efficient when it comes to handling static or stationary loads. They offer exceptional strength, resistance to deformation, and durability, making them a preferred choice in a wide range of industries, including construction, manufacturing, and infrastructure development.
Q:Can steel round bars be plated or coated?
Steel round bars can undergo plating or coating, which is a widely employed technique to enhance their appearance, durability, and resistance to corrosion. During this process, a layer of a different material is applied to the surface of the steel round bars using methods like electroplating, hot-dip galvanizing, powder coating, or painting. The choice of plating or coating material depends on the specific requirements and desired properties of the steel round bars. For instance, zinc plating is often used to provide corrosion resistance, while chrome plating can enhance their aesthetic appeal. In summary, plating or coating steel round bars can significantly enhance their performance and prolong their lifespan.
Q:Can steel round bars be used in the electronics industry?
Yes, steel round bars can be used in the electronics industry. They are commonly used for various applications such as providing structural support, heat dissipation, and grounding in electronic devices and equipment. Additionally, steel round bars offer excellent strength, durability, and conductivity, making them suitable for use in the electronics industry.
Q:How do you store excess steel round bars?
Excess steel round bars can be stored by utilizing proper stacking techniques and ensuring a clean and dry storage area. It is recommended to stack the bars horizontally, with sturdy supports at regular intervals to prevent bending or deformation. Additionally, storing them in a covered area or using protective covers can help prevent corrosion and maintain the quality of the bars.
Q:Are steel round bars suitable for automotive applications?
Yes, steel round bars are suitable for automotive applications. Steel round bars are commonly used in the manufacturing of various automotive components due to their high strength, durability, and resistance to corrosion. They are used in applications such as axles, crankshafts, drive shafts, steering components, suspension systems, and chassis construction. Steel round bars provide the necessary strength and rigidity required to handle the demanding conditions of automotive use, including heavy loads, vibrations, and impact forces. Additionally, steel round bars can be easily machined, welded, and forged, making them versatile and adaptable to different automotive designs and requirements. Overall, steel round bars are a reliable and cost-effective choice for automotive applications.
Q:How many roots are there in a standard ton of steel and how many meters are there in a steel bar?
Generally, the length of steel bars is 6 meters, 9 meters, 12 meters, 6 meters, which is rarely seen on the construction site. A standard bundle is 2 tons.
Q:What are the different types of threads used for steel round bars?
There are several different types of threads that can be used for steel round bars, depending on the specific application and requirements. Some of the most common types of threads used for steel round bars include: 1. Unified National Coarse (UNC) Thread: This is the most widely used thread type for general-purpose applications. It has a relatively coarse pitch and is suitable for most common applications where high strength is not required. 2. Unified National Fine (UNF) Thread: This thread type has a finer pitch compared to UNC threads and offers better resistance to vibration. It is commonly used in applications where a higher level of thread engagement and better thread performance is required. 3. Metric Thread: Metric threads are widely used in countries that adopt the metric system. They are defined by their pitch, which is the distance between each thread. Metric threads offer a precise and standardized threading solution for various applications. 4. Acme Thread: Acme threads have a trapezoidal shape and are commonly used in applications that require high strength and resistance to wear and tear. They are often employed in heavy-duty machinery, such as lead screws, jackscrews, and power transmission systems. 5. Buttress Thread: Buttress threads have a triangular shape with one side being perpendicular to the axis of the thread. This unique design allows for high load-bearing capacity and resistance to axial forces in one direction. Buttress threads are commonly used in applications that involve high-pressure fluid flow, such as hydraulic cylinders and pumps. 6. Whitworth Thread: Whitworth threads were widely used in the past but have become less common nowadays. They have a rounded profile and a coarse pitch. Whitworth threads are often found in older machinery and equipment. It is important to select the appropriate thread type for a specific application to ensure proper fit, functionality, and durability of the steel round bar. The choice of thread type will depend on factors such as load requirements, environmental conditions, compatibility with mating parts, and industry standards.
Q:Difference between cold drawn round steel and round steel
There are different reasons for the residual stress in hot rolled and cold-rolled steel sections, so the distribution of the residual stresses is also quite different. The residual cold-formed steel section stress distribution is curved, and hot rolled steel or steel welding section on the residual stress distribution is thin.

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