AISI4140 Forged Round Bar with Turned Surface
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- 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
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
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.
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:Are steel round bars resistant to chemicals?
- Steel round bars can exhibit varying degrees of resistance to chemicals, depending on the specific type of steel and the type of chemical involved. Stainless steel round bars, for example, are known for their excellent resistance to a wide range of chemicals, including acids, alkalis, and various organic compounds. This is due to the high levels of chromium present in stainless steel, which forms a protective oxide layer on the surface, preventing corrosion and chemical attack. However, not all steel round bars possess the same level of chemical resistance. Carbon steel round bars, for instance, are more susceptible to corrosion and chemical attack compared to stainless steel. Carbon steel can be affected by acids, alkalis, and other corrosive chemicals, especially in highly corrosive environments. In such cases, additional protective measures such as coatings or treatments may be necessary to enhance chemical resistance. In summary, while stainless steel round bars offer excellent resistance to chemicals, carbon steel round bars may require additional precautions to protect against chemical corrosion. It is important to consider the specific type of steel, the type of chemical, and the environmental conditions when assessing the chemical resistance of steel round bars.
- Q:Can steel round bars be used in the production of flanges?
- Yes, steel round bars can be used in the production of flanges. Steel round bars are commonly used as raw materials for manufacturing flanges due to their high strength, durability, and ability to withstand high pressure and temperature requirements in various industrial applications.
- Q:What are the different mechanical properties of steel round bars?
- The different mechanical properties of steel round bars include tensile strength, yield strength, elongation, hardness, and impact resistance. Tensile strength refers to the maximum amount of stress a material can withstand before breaking. Yield strength is the stress at which a material begins to deform permanently. Elongation measures the amount of deformation a material can undergo before breaking. Hardness determines the material's resistance to indentation or scratching. Impact resistance is the ability of a material to absorb energy during sudden impacts without breaking.
- Q:How do you calculate the torsional strength of a steel round bar?
- To calculate the torsional strength of a steel round bar, you need to consider its material properties and dimensions. The torsional strength, also known as torsional yield strength or shear strength, refers to the maximum amount of torque or twisting force that a round bar can withstand without undergoing permanent deformation or failure. The formula to calculate torsional strength is: Torsional Strength = (Torsional Constant * Yield Strength) / (Polar Moment of Inertia * Length) 1. Torsional Constant: This constant depends on the shape of the cross-section of the round bar. For a solid round bar, the torsional constant is equal to (π * D^4) / 32, where D is the diameter of the bar. 2. Yield Strength: This is the stress at which the steel material starts to deform plastically. It is usually provided by the manufacturer or can be determined through material testing. 3. Polar Moment of Inertia: This property represents the resistance of the round bar to torsional deformation. For a solid round bar, the polar moment of inertia is equal to (π * D^4) / 32. 4. Length: This refers to the length of the round bar along which the torsional force is applied. By plugging these values into the formula, you can calculate the torsional strength of the steel round bar. It is important to note that this calculation assumes the round bar is perfectly homogeneous, free from any defects, and subjected to pure torsion. Keep in mind that torsional strength is just one aspect to consider when evaluating the suitability of a steel round bar for a specific application. Other factors such as fatigue strength, corrosion resistance, and load-bearing capacity should also be taken into account. It is recommended to consult with a professional engineer or refer to relevant industry standards to ensure accurate calculations and appropriate selection of materials.
- Q:What is the difference between a centerless ground and a cold finished steel round bar?
- A centerless ground steel round bar is produced by grinding the surface of the bar to achieve a precise diameter and smooth finish, while a cold finished steel round bar is produced by cold drawing the bar through a die to achieve the desired shape and size without any additional surface treatment. The centerless ground bar has tighter tolerances and a smoother surface, making it suitable for applications that require high precision and a polished appearance. On the other hand, the cold finished bar may have slightly looser tolerances and a rougher surface, but it is more cost-effective and suitable for applications that do not require extreme precision or a polished finish.
- Q:Are steel round bars suitable for machining applications?
- Yes, steel round bars are suitable for machining applications. Steel round bars are known for their excellent machinability, which means they can be easily shaped, cut, and drilled using various machining techniques such as turning, milling, drilling, and grinding. They are commonly used in industries such as automotive, aerospace, construction, and manufacturing, where precision and durability are crucial. Steel round bars offer high strength, toughness, and resistance to wear, making them ideal for machining applications that require high-performance components or parts. Additionally, steel round bars are available in a wide range of grades and sizes, allowing for versatility in meeting specific machining requirements.
- Q:What are the different tolerances for steel round bars?
- Steel round bars have a range of tolerances that are determined by the specific requirements and standards of different industries and applications. These tolerances ensure that the dimensions and surface conditions of the bars meet the desired specifications. The diameter tolerance is the most common tolerance for steel round bars. It refers to the allowable deviation from the specified diameter. For example, a steel round bar with a diameter tolerance of +/- 0.005 inches means that the actual diameter can vary within this range. Another important tolerance is the straightness tolerance, which measures the allowable deviation from a straight line over a specified length of the bar. Straightness tolerances are usually expressed as the maximum deviation in relation to the length, such as 0.010 inches per foot. Surface finish tolerance is also crucial and refers to the acceptable variation in the surface texture or roughness of the bar. This tolerance is often specified using parameters like Ra or Rz. For instance, a surface finish tolerance of Ra 0.8 micrometers means that the average roughness should not exceed this value. In addition to these common tolerances, there may be other specific tolerances based on the intended application of the steel round bars. These can include tolerances for straightness, length, weight, or other dimensional properties. It's important to note that the tolerances for steel round bars can vary depending on the standards followed by different industries and countries. To determine the specific tolerances required for a particular application, it's advisable to refer to the relevant standards or specifications.
- Q:How do steel round bars differ from steel square bars?
- Steel round bars and steel square bars differ in their shape and cross-sectional design. While round bars possess a circular shape throughout their length, square bars have a square shape. This distinction affects their mechanical properties and applications. Round bars offer enhanced tensile strength and are often used in applications where rotational motion or bending is required, such as in construction, machining, and transportation industries. On the other hand, square bars provide more stability and structural support due to their flat sides, making them suitable for applications requiring load-bearing capabilities, like supports, frames, and braces. Ultimately, the choice between round bars and square bars depends on the specific requirements and intended use of the steel.
- Q:Can steel round bars be used for hydraulic cylinder applications?
- Certainly, hydraulic cylinder applications can indeed make use of steel round bars. Given their remarkable strength and durability, steel round bars find frequent application in the fabrication of hydraulic cylinders. They exhibit exceptional resistance to impact, corrosion, and wear, rendering them ideal for demanding tasks. Furthermore, steel round bars can be conveniently machined and shaped to meet precise dimensional specifications for hydraulic cylinder components. Consequently, steel round bars enjoy significant popularity when it comes to hydraulic cylinder applications.
- Q:What are the different types of steel round bar surface finishes for improved aesthetics?
- Some common types of steel round bar surface finishes for improved aesthetics include polished, brushed, satin, and bead blasted finishes.
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AISI4140 Forged Round Bar with Turned Surface
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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