40Cr Steel Round Bar&JIS SCR440& ASTM 5140
- 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
40Cr Steel Round Bar&JIS SCR440& ASTM 5140
Product Description of 40Cr Steel Round Bar&JIS SCR440& ASTM 5140
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 40Cr Steel Round Bar&JIS SCR440& ASTM 5140
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 40Cr Steel Round Bar&JIS SCR440& ASTM 5140
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 40Cr Steel Round Bar&JIS SCR440& ASTM 5140
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of 40Cr Steel Round Bar&JIS SCR440& ASTM 5140
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:Can steel round bars be used for making steering components?
- Indeed, it is possible to utilize steel round bars in the production of steering components. The utilization of steel as a material for steering system components is quite prevalent owing to its remarkable strength and resilience. By machining or forging steel round bars, one can fashion them into diverse shapes and sizes to fabricate steering components like steering shafts, tie rods, and drag links. These components necessitate the capability to endure the forces and pressures exerted upon them during steering, and steel's properties render it suitable for this purpose. Moreover, steel is effortlessly obtainable and cost-efficient, rendering it a favored option for the production of steering components in numerous sectors, including automotive and aerospace.
- Q:How are steel round bars classified based on their shape?
- Steel round bars can be categorized into two main groups, namely hot-rolled round bars and cold-drawn round bars, depending on their shape. Hot-rolled round bars are produced by heating a steel billet until it becomes malleable and then passing it through a series of rollers to achieve the desired shape. This manufacturing process results in a rougher surface texture and a slightly larger diameter when compared to cold-drawn round bars. Hot-rolled round bars find common usage in construction, engineering, and manufacturing applications where strength and durability play a crucial role. On the other hand, cold-drawn round bars are manufactured by pulling a hot-rolled round bar through a series of dies at room temperature. This process enhances the dimensional accuracy, surface finish, and mechanical properties of the steel. Cold-drawn round bars possess a smoother surface texture and a more precise diameter, making them suitable for applications that demand tight tolerances, such as precision machining, automotive components, and machinery shafts. In conclusion, the classification of steel round bars, based on their shape, is determined by the specific manufacturing process employed. Hot-rolled round bars exhibit rougher surfaces and slightly larger diameters, while cold-drawn round bars boast smoother surfaces and more precise dimensions. The choice between these two categories depends on the specific requirements of the given application.
- Q:Are steel round bars available in custom lengths?
- Custom lengths of steel round bars are indeed obtainable. While steel round bars are usually produced in standard lengths, numerous suppliers provide the possibility of tailoring them to specific lengths based on customer demands. This grants increased adaptability for various applications necessitating precise lengths. Whether shorter or longer steel round bars are needed, individuals can reach out to a steel supplier or fabricator for assistance in acquiring custom lengths that align with their project's specifications.
- Q:How do you measure the diameter tolerance of a steel round bar?
- The diameter tolerance of a steel round bar can be measured using a caliper or micrometer tool. The tool is used to measure the diameter of the bar at multiple points along its length. The measurements are then compared to the specified diameter tolerance range to determine if the bar falls within the acceptable limits.
- Q:How do you determine the hardness of a steel round bar?
- The hardness of a steel round bar can be determined through various methods, including hardness testing techniques such as Rockwell, Brinell, or Vickers testing. These tests involve applying a specific amount of pressure or indentation on the surface of the steel bar and measuring the resulting indentation size. The hardness value obtained from these tests is then used to determine the material's resistance to deformation and its ability to withstand wear and tear.
- Q:What are the advantages of using nickel-molybdenum-vanadium alloy steel round bars?
- There are several advantages of using nickel-molybdenum-vanadium alloy steel round bars, including: 1. High strength and durability: Nickel-molybdenum-vanadium alloy steel round bars offer excellent strength and durability, making them suitable for applications that require a high level of structural integrity. This alloy steel is known for its ability to withstand heavy loads and resist deformation, making it ideal for use in industries such as construction, automotive, and aerospace. 2. Corrosion resistance: Another advantage of using nickel-molybdenum-vanadium alloy steel round bars is their excellent resistance to corrosion. The addition of nickel and vanadium to the alloy enhances its ability to resist oxidation and corrosion, even in harsh environmental conditions. This makes it a preferred choice for applications where exposure to moisture, chemicals, or corrosive substances is expected. 3. Heat resistance: Nickel-molybdenum-vanadium alloy steel round bars have a high heat resistance, making them suitable for applications that involve high temperatures. The presence of molybdenum in the alloy increases its resistance to thermal stress, ensuring that it remains structurally stable even at elevated temperatures. This makes it ideal for use in industries such as oil and gas, power generation, and heat exchangers. 4. Versatility: The versatility of nickel-molybdenum-vanadium alloy steel round bars is another advantage. This alloy can be easily forged, machined, and welded, allowing for a wide range of manufacturing processes. Its versatility makes it a preferred choice for applications that require complex shapes and designs, such as shafts, gears, and valves. 5. Cost-effective: Despite its numerous advantages, nickel-molybdenum-vanadium alloy steel round bars are relatively cost-effective compared to other high-performance alloys. Its excellent combination of properties makes it a cost-efficient option for various industries, as it offers a longer lifespan, reduced maintenance requirements, and improved performance, ultimately resulting in cost savings over time. In conclusion, the advantages of using nickel-molybdenum-vanadium alloy steel round bars include high strength and durability, corrosion resistance, heat resistance, versatility, and cost-effectiveness. These properties make it a preferred choice for a wide range of applications in various industries.
- Q:Can steel round bars be used for making bicycle frames or handlebars?
- Yes, steel round bars can be used for making bicycle frames or handlebars. Steel is a commonly used material in the manufacturing of bicycle frames and handlebars due to its strength, durability, and ability to absorb vibrations. Steel round bars provide the necessary structural integrity and rigidity required for these components, making them suitable for use in bicycle frames and handlebars.
- Q:How do you determine the hardness of a steel round bar?
- To determine the hardness of a steel round bar, various methods can be used. One common method is the Rockwell hardness test. This test involves applying a minor load to the surface of the bar using a diamond or a hardened steel ball, followed by a major load. The depth of penetration of the minor and major loads is measured, and a hardness value is determined based on the difference between the two depths. Another method is the Brinell hardness test, which involves indenting the surface of the steel bar using a hardened steel ball under a specified load. The diameter of the resulting indentation is measured, and the hardness value is calculated based on the load and the diameter of the indentation. Alternatively, the Vickers hardness test can also be used. This test involves applying a diamond pyramid-shaped indenter to the surface of the steel bar under a specific load. The size of the indentation is measured, and the hardness value is determined based on the load and the surface area of the indentation. It is important to note that the specific method used to determine the hardness of a steel round bar depends on factors such as the type of steel and the desired accuracy of the measurement. Additionally, other factors such as heat treatment and composition can also affect the hardness of the steel bar, so it is essential to consider these factors when determining hardness.
- Q:Can steel round bars be used for making connecting rods?
- Yes, steel round bars can be used for making connecting rods. Steel is a commonly used material for connecting rods due to its high strength and durability, making it suitable for withstanding the stress and load requirements of an engine.
- Q:What is the difference between a cold finished and a turned steel round bar?
- Cold finished steel round bars and turned steel round bars are utilized in various industries for different purposes. The manufacturing process and resulting properties distinguish these two types of steel bars. For a cold finished steel round bar, the production involves cold drawing or cold rolling a hot rolled steel bar. This entails passing the hot rolled bar through a series of dies at room temperature, which decreases its diameter and increases its length. Through the cold drawing process, the steel acquires specific mechanical properties, including enhanced surface finish, dimensional accuracy, and increased strength. Cold finished steel bars possess a sleek, glossy surface and are renowned for their precise tolerances and consistent size and shape. They find common usage in applications requiring precision and high-quality surface finish, such as the automotive, aerospace, and machining industries. Conversely, a turned steel round bar is created by machining a hot rolled or cold finished bar on a lathe. The bar is secured and rotated while a cutting tool eliminates material from its outer surface, resulting in the desired shape and dimensions. This turning process yields a bar with a rougher surface compared to a cold finished bar. However, it enables faster production and versatility in creating diverse shapes and sizes. Turned steel bars are frequently employed in applications where the surface finish is not crucial but machining operations are necessary, such as in the construction, engineering, and manufacturing industries. In conclusion, the distinction between a cold finished and a turned steel round bar lies in the manufacturing process and the resulting properties. Cold finished bars are produced through cold drawing or cold rolling, leading to improved dimensional accuracy, surface finish, and strength. Turned bars are machined on a lathe, providing flexibility in shape and size but with a rougher surface finish. The choice between the two depends on the specific requirements of the application, including tolerance, surface finish, strength, and machinability.
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40Cr Steel Round Bar&JIS SCR440& ASTM 5140
- 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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