Forged GB/AISI/JIS Standard 4130 1.7218 SCM430 25CrMo4 Half Round Steel Bar
- 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
Forged GB/AISI/JIS Standard 4130 1.7218 SCM430 25CrMo4 Half Round Steel Bar
Product Description of Forged GB/AISI/JIS Standard 4130 1.7218 SCM430 25CrMo4 Half Round Steel Bar
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 Forged GB/AISI/JIS Standard 4130 1.7218 SCM430 25CrMo4 Half Round Steel Bar
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 Forged GB/AISI/JIS Standard 4130 1.7218 SCM430 25CrMo4 Half Round Steel Bar
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 Forged GB/AISI/JIS Standard 4130 1.7218 SCM430 25CrMo4 Half Round Steel Bar
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of Forged GB/AISI/JIS Standard 4130 1.7218 SCM430 25CrMo4 Half Round Steel Bar
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: What are the considerations for selecting the right steel grade for a round bar?
- There are various factors to consider when choosing the appropriate steel grade for a round bar. To begin with, the intended application of the round bar should be taken into account. Different steel grades possess distinct properties that make them suitable for specific purposes. For instance, stainless steel or high-alloy steel, which have exceptional heat resistance, would be ideal for use in high-temperature environments. Conversely, carbon steel, with its good strength and ductility, may be more appropriate for structural applications. Another factor to consider is the desired mechanical properties of the round bar, including tensile strength, yield strength, hardness, and toughness. These properties can vary significantly among different steel grades, so it is crucial to select a grade that meets the specific requirements of the application. Corrosion resistance is also an important consideration. If the round bar will be exposed to corrosive environments, such as in marine or chemical applications, it is advisable to choose a stainless steel grade with high resistance to corrosion. On the other hand, if corrosion resistance is not a major concern, a carbon steel grade may be more cost-effective. Cost is another factor to be taken into account. Different steel grades have varying costs based on availability, demand, and manufacturing processes. It is important to strike a balance between the desired properties of the round bar and the available budget to ensure cost-effectiveness. Moreover, the manufacturability of the steel grade should be considered. Some steel grades may be more challenging to machine or weld, which can impact the production process and cost. It is crucial to select a readily available steel grade that can be easily processed to meet the required specifications. Finally, it is always advisable to seek guidance from steel suppliers, engineers, or metallurgists to ensure that the chosen steel grade aligns with the specific requirements of the application. Their expertise and experience in the industry can provide valuable insights and recommendations.
- Q: Can steel round bars be used in the production of sporting goods?
- Sporting goods can indeed utilize steel round bars. Steel, a versatile material renowned for its strength and durability, proves fitting for a wide spectrum of applications within the sporting goods industry. To illustrate, steel round bars can be employed to fabricate various components, including shafts, handles, frames, and supports for sporting equipment such as golf clubs, hockey sticks, weightlifting bars, and exercise machines. The robust tensile strength of steel ensures that these components can withstand the rigorous forces and pressures exerted during sports activities, thus affording stability and longevity to the resultant products. Additionally, steel round bars can be effortlessly machined, welded, and molded into different shapes and sizes to meet the particular requirements of each sporting good. Furthermore, steel's ability to resist corrosion renders it an ideal choice for outdoor sporting equipment that is subjected to diverse weather conditions. In summary, steel round bars are an immensely popular option in the production of sporting goods owing to their strength, durability, versatility, and capacity to endure the demands of various sports.
- Q: Can steel round bars be used in automotive applications?
- Yes, steel round bars can be commonly used in automotive applications due to their strength, durability, and versatility. They are often used in various components such as axles, crankshafts, suspension parts, and steering columns, among others, to provide structural support and ensure the safe and efficient functioning of vehicles.
- Q: What is the difference between a peeled and a centerless ground steel round bar?
- A peeled steel round bar has its outer surface removed, leaving a smooth and clean finish. On the other hand, a centerless ground steel round bar has its diameter reduced and its surface polished, resulting in a precise and even size with a polished appearance.
- Q: What are the factors affecting the price of steel round bars?
- There are several factors that can affect the price of steel round bars. Firstly, the cost of raw materials plays a significant role. The price of iron ore, scrap metal, and other essential components used in the production of steel can fluctuate based on supply and demand dynamics in the global market. Another factor is the overall demand for steel round bars. As with any product, when demand is high, prices tend to increase. This can be influenced by various factors, including economic growth, construction and infrastructure projects, manufacturing activities, and international trade. The production and manufacturing costs also impact the price of steel round bars. Expenses such as labor, energy, transportation, and technology advancements can all contribute to the final price. Additionally, market competition can affect steel bar prices. When there is a higher number of suppliers or alternatives available in the market, it can drive prices down due to increased competition and the need to attract customers. Government regulations and policies can also play a role in pricing. Taxes, tariffs, duties, and trade regulations imposed by governments can impact the cost of steel round bars, especially in international trade scenarios. Lastly, currency exchange rates can influence the price of steel round bars. Fluctuations in currency values can affect the cost of imported or exported steel products, making them more expensive or cheaper depending on the exchange rate. Considering these factors, it is important for buyers and sellers of steel round bars to closely monitor market conditions and stay informed about any changes that may impact prices.
- Q: What are the different types of steel round bar machining processes?
- There are several different types of steel round bar machining processes, each with its own unique characteristics and applications. Some of the most common types include: 1. Turning: This process involves rotating the steel round bar against a cutting tool, which removes material to create the desired shape. Turning is often used to create cylindrical shapes or to remove excess material from the surface. 2. Drilling: Drilling is a machining process that involves creating holes in the steel round bar using a rotating cutting tool. This process is commonly used to create holes for bolts or other fasteners. 3. Milling: Milling is a versatile machining process that involves removing material from the surface of the steel round bar using a rotating cutting tool. This process can be used to create complex shapes, slots, or grooves. 4. Grinding: Grinding is a machining process that uses an abrasive wheel to remove material from the surface of the steel round bar. This process is often used to achieve a smooth finish or to remove any imperfections on the surface. 5. Boring: Boring is a process that involves enlarging an existing hole in the steel round bar using a cutting tool. This process is commonly used to create larger diameter holes or to achieve greater precision. 6. Knurling: Knurling is a machining process that involves creating a pattern of ridges or grooves on the surface of the steel round bar. This process is often used to improve grip or to create a decorative effect. 7. Thread cutting: Thread cutting is a process that involves creating external or internal threads on the surface of the steel round bar. This process is commonly used to create threaded holes or to create threaded fasteners. These are just a few examples of the different types of steel round bar machining processes. Each process has its own advantages and limitations, and the choice of which process to use will depend on the specific requirements of the application.
- Q: How do you calculate the moment of inertia of a steel round bar?
- To calculate the moment of inertia of a steel round bar, you need to know its mass and the radius of gyration. The moment of inertia can be determined using the formula I = (1/4) * π * r^4, where I represents the moment of inertia and r is the radius of the round bar.
- Q: What are the differences between hot rolled stainless steel rounds and cold drawn round ones?
- Hot rolled round steel, used in construction and general hardware parts processing is very common. Cold drawn round steel (do not know is not cold dial round bar). But I understand by the cold dial round bar Also mainly used in hardware parts processing and production. Such as hinge shaft core or other surface and diameter requirements of production and processing occasions.
- Q: What are the different types of steel round bars used in the manufacturing of cutting tools?
- There are several types of steel round bars commonly used in the manufacturing of cutting tools. Some of the most common types include high-speed steel (HSS), tool steel, carbon steel, and stainless steel. Each type has its own unique properties and characteristics that make it suitable for specific cutting applications. For example, HSS is known for its high hardness, toughness, and heat resistance, making it ideal for high-speed cutting operations. Tool steel, on the other hand, is known for its exceptional wear resistance and ability to retain sharp edges, making it suitable for cutting tools that require long-lasting performance. Carbon steel is often used for general-purpose cutting tools due to its affordability and good balance of hardness and toughness. Lastly, stainless steel is chosen for cutting tools that require excellent corrosion resistance, making it suitable for applications in harsh environments or when working with corrosive materials.
- Q: What are the advantages of using maraging steel round bars?
- Maraging steel round bars offer several advantages. Firstly, they possess exceptional strength and hardness, making them ideal for applications requiring high-performance materials. Additionally, maraging steel round bars have excellent toughness and resistance to fatigue, ensuring durability under demanding conditions. They also exhibit good corrosion resistance, reducing the risk of degradation over time. Furthermore, maraging steel is known for its machinability and ease of welding, facilitating efficient processing and fabrication. Overall, these advantages make maraging steel round bars a preferred choice in industries such as aerospace, defense, and tooling.
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Forged GB/AISI/JIS Standard 4130 1.7218 SCM430 25CrMo4 Half Round Steel Bar
- 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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