4140 Mild Steel Round Bar Sizes
- Ref 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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Specification
4140 Mild Steel Round Bar Sizes
Product Description of 4140 Mild Steel Round Bar Sizes
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 4140 Mild Steel Round Bar Sizes
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 4140 Mild Steel Round Bar Sizes
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 4140 Mild Steel Round Bar Sizes
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of 4140 Mild Steel Round Bar Sizes
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: How do you calculate the weight of a steel round bar based on its length and volume?
- To calculate the weight of a steel round bar based on its length and volume, you need to know the density of the steel. The density represents the amount of mass per unit volume of the material. The formula to calculate the weight is: Weight = Volume × Density First, you need to calculate the volume of the steel round bar. The volume of a cylinder (which is the shape of a round bar) is given by the formula: Volume = π × (Radius)^2 × Length Where π is a mathematical constant approximately equal to 3.14, and Radius is the radius of the round bar. Once you have the volume, you can multiply it by the density of the steel to find the weight. The density of steel can vary depending on the specific type of steel being used. For example, the density of mild steel is around 7850 kg/m³. Therefore, the weight of the steel round bar is calculated as: Weight = Volume × Density For example, let's say we have a steel round bar with a length of 1 meter and a radius of 0.5 meters. To calculate the weight, we need to find the volume first: Volume = π × (0.5)^2 × 1 Volume = 0.7854 m³ Next, we multiply the volume by the density of steel: Weight = 0.7854 m³ × 7850 kg/m³ Weight = 6171.79 kg So, the weight of the steel round bar would be approximately 6171.79 kg.
- Q: Can steel round bars be hardened through heat treatment?
- Yes, steel round bars can be hardened through heat treatment. Heat treatment is a process that involves heating the steel to a specific temperature and then rapidly cooling it to achieve the desired hardness and strength. There are different heat treatment methods, such as quenching and tempering, which can be used to harden steel round bars. Quenching involves heating the steel to a critical temperature and then rapidly cooling it in a liquid medium, such as oil or water, to achieve maximum hardness. Tempering, on the other hand, involves reheating the quenched steel to a lower temperature to reduce brittleness and improve toughness while maintaining a desirable hardness level. Heat treatment can significantly improve the mechanical properties of steel round bars, making them suitable for various applications that require high strength and hardness.
- Q: Difference between round bar and other steel bars
- It is divided into three kinds: hot rolling, forging and cold drawing. Round steel (grade 1 steel) belongs to ordinary low carbon steel, and most other steel bars are alloy steel. Round steel is of low strength and high strength of other steel.
- Q: What are the different grades of steel round bars available?
- There are various grades of steel round bars available, each with different properties and applications. Some common grades include: 1. Mild Steel: This grade is the most commonly used and affordable option. It has a low carbon content and is easy to weld, cut, and form. Mild steel round bars are suitable for general construction projects, fabrication, and manufacturing. 2. Carbon Steel: With a higher carbon content than mild steel, carbon steel round bars offer greater strength and hardness. They are often used in applications that require high strength, such as machinery parts, shafts, and axles. 3. Alloy Steel: Alloy steel round bars are made by adding various alloying elements such as chromium, nickel, manganese, or molybdenum to improve specific properties. These bars offer enhanced strength, toughness, and wear resistance, making them suitable for applications like automotive parts, gears, and tools. 4. Stainless Steel: Stainless steel round bars are corrosion-resistant and have excellent mechanical properties. They are widely used in industries such as 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 making tools and dies. They have high hardness, wear resistance, and heat resistance properties. Tool steel grades like D2, A2, or O1 are commonly used for making cutting tools, molds, and dies. It's essential to select the appropriate grade of steel round bars based on the specific requirements of your project, considering factors such as strength, corrosion resistance, hardness, and machinability. Consulting with a steel supplier or an engineer can help identify the most suitable grade for your application.
- Q: What are the different types of steel round bars used in the automotive drivetrain systems?
- There are several types of steel round bars commonly used in automotive drivetrain systems, including alloy steel, carbon steel, and stainless steel. These bars are chosen based on their specific properties and characteristics, such as strength, durability, and resistance to corrosion. The selection of the type of steel round bar depends on the specific application and requirements of the drivetrain system.
- Q: Can steel round bars be used for making storage tanks?
- Yes, steel round bars can be used for making storage tanks. Steel is a versatile and widely used material in various industries, including the manufacturing of storage tanks. Steel round bars are known for their strength, durability, and resistance to corrosion, making them suitable for storing a wide range of substances, including liquids and gases. The round shape of the bars allows for easy fabrication and assembly, ensuring the structural integrity of the storage tank. Additionally, steel round bars can be easily welded or bolted together, allowing for customization and flexibility in tank design. Overall, steel round bars are a popular choice for making storage tanks due to their reliability, longevity, and ability to withstand high pressure and extreme environmental conditions.
- Q: Can steel round bars be used for making staircases?
- Yes, steel round bars can be used for making staircases. Steel round bars are commonly used in the construction industry for various applications, including staircase fabrication. They are strong, durable, and provide excellent structural support, making them an ideal choice for staircases. Steel round bars can be used to create the framework and structure of the staircase, providing stability and safety. Additionally, steel round bars can be easily shaped and welded to create different designs and styles for the staircase, allowing for customization and flexibility in the construction process. Overall, steel round bars are a reliable and popular choice for making staircases due to their strength, durability, and versatility.
- Q: How do you check the quality of a steel round bar?
- To check the quality of a steel round bar, several methods can be employed. Firstly, visual inspection is crucial, where one should look for any surface defects, such as cracks, pits, or unevenness. Next, measurements of diameter, length, and straightness should be taken using appropriate tools. Additionally, conducting a hardness test using a hardness tester can determine the bar's hardness, ensuring it meets the required specifications. Other quality checks may involve verifying the chemical composition and performing non-destructive tests like ultrasonic or magnetic particle inspections to identify any internal flaws. Ultimately, a comprehensive assessment combining these various methods will help ascertain the overall quality of the steel round bar.
- Q: How do you calculate the cross-sectional area of a steel round bar?
- To calculate the cross-sectional area of a steel round bar, you need to know its diameter or radius. The formula for calculating the cross-sectional area of a circle is A = πr^2, where A is the area and r is the radius of the circle. If you have the diameter of the round bar, you can divide it by 2 to get the radius. Once you have the radius, you can substitute it into the formula to calculate the cross-sectional area. Keep in mind that the value of π is approximately 3.14159.
- Q: What are the different types of connections used with steel round bars?
- There are several types of connections commonly used with steel round bars, including threaded connections, welded connections, and mechanical connections such as couplers or splice sleeves. These connections are used to join steel round bars together in various applications, providing strength and stability to the overall structure.
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4140 Mild Steel Round Bar Sizes
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 500000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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