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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Item specifice
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 steel round bars?
- Made from steel, steel round bars are long, cylindrical metal bars that find applications in various industries such as construction, manufacturing, and engineering. Renowned for their strength, durability, and versatility, these bars are produced through a hot rolling process. This involves heating a solid steel billet and passing it through a series of rollers to achieve the desired shape and size. Available in a range of sizes and grades, steel round bars possess different properties depending on their specific application. They serve as structural components in buildings, shafts in machinery, support bars in concrete structures, and raw material for the production of other steel products. The construction and manufacturing sectors widely prefer steel round bars due to their high tensile strength and corrosion resistance.
- Q:Can steel round bars be coated or painted?
- Steel round bars have the capability to undergo coating or painting. The purpose of coating or painting steel round bars is manifold; it prevents corrosion, enhances aesthetics, and provides additional protection against environmental factors. There are several methods available for applying coatings and paints to steel round bars, including powder coating, electroplating, or wet paint application. These processes involve first preparing the surface of the steel round bar by removing any existing rust or contaminants, and then applying the chosen coating or paint. The selection of the appropriate coating or paint depends on the specific requirements of the steel round bars, such as their intended use, environmental conditions, and desired appearance. By coating or painting steel round bars, their lifespan can be significantly extended, their visual appeal can be improved, and their durability can be ensured in a wide range of applications.
- Q:Can steel round bars be used for construction purposes?
- Yes, steel round bars can be used for construction purposes. They are commonly used for structural applications such as building frames, bridges, and various types of infrastructure due to their strength, durability, and versatility. Steel round bars provide a reliable and cost-effective solution for construction projects.
- Q:What are the different surface treatments for steel round bars?
- There are several different surface treatments available for steel round bars, including galvanizing, chrome plating, powder coating, and nitriding. These treatments are applied to enhance the corrosion resistance, durability, and appearance of the steel bars.
- Q:Can steel round bars be used for pump shaft applications?
- Yes, steel round bars can be used for pump shaft applications. Steel round bars are often chosen for pump shafts due to their high strength, durability, and resistance to corrosion. Additionally, steel round bars can be easily machined and provide excellent surface finish, making them suitable for various pump shaft applications.
- 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:What is the typical lead time for manufacturing steel round bars?
- The typical lead time for manufacturing steel round bars can vary depending on various factors such as the size and quantity of the bars, the complexity of the manufacturing process, and the production capacity of the manufacturer. In general, lead times for manufacturing steel round bars can range from a few days to several weeks. For standard sizes and quantities, the lead time is usually shorter as manufacturers often have these readily available in stock. However, for custom orders or larger quantities, the lead time may be longer as it involves additional processes such as sourcing raw materials, cutting, heat treating, and quality control checks. It is important to note that lead times can also be influenced by market demand and the manufacturer's production schedule. During periods of high demand or limited production capacity, lead times may be extended. Alternatively, if there is low demand or surplus production capacity, lead times can be shorter. To get an accurate estimate of the lead time for manufacturing steel round bars, it is recommended to contact specific manufacturers or suppliers directly. They will be able to provide more precise information based on their capabilities and current workload.
- Q:What are the advantages of using nickel-tin alloy steel round bars?
- There are several advantages of using nickel-tin alloy steel round bars. Firstly, nickel-tin alloy steel has excellent corrosion resistance properties. This makes it ideal for applications where the round bars will be exposed to harsh environments or corrosive substances. The addition of nickel and tin enhances the overall durability and longevity of the round bars, ensuring they can withstand prolonged exposure to moisture, chemicals, and other corrosive elements. Secondly, nickel-tin alloy steel round bars offer superior strength and toughness. The combination of nickel and tin in the alloy composition enhances the overall mechanical properties of the bars, making them highly resistant to deformation, bending, and breaking. This makes them suitable for demanding applications that require high strength and durability, such as in construction, aerospace, and automotive industries. Additionally, nickel-tin alloy steel round bars exhibit excellent heat resistance. They can withstand high temperatures without significant loss of strength or deformation. This makes them ideal for applications that involve exposure to elevated temperatures, such as in furnaces, boilers, and heat exchangers. Furthermore, nickel-tin alloy steel is known for its excellent electrical conductivity. This property makes the round bars suitable for applications that require efficient electrical transmission, such as in electrical wiring, power generation, and electrical equipment manufacturing. Lastly, nickel-tin alloy steel round bars are relatively easy to machine and fabricate. They can be readily shaped, cut, and welded, allowing for versatility in various manufacturing processes. This ease of machining and fabrication ensures efficient production and reduces overall manufacturing costs. In conclusion, the advantages of using nickel-tin alloy steel round bars include excellent corrosion resistance, superior strength and toughness, high heat resistance, good electrical conductivity, and ease of machining and fabrication. These properties make nickel-tin alloy steel round bars a preferred choice for a wide range of applications in various industries.
- Q:Can steel round bars be used for making exhaust systems?
- Yes, steel round bars can be used for making exhaust systems. Steel is a commonly used material for exhaust systems due to its durability, heat resistance, and cost-effectiveness. Steel round bars can be shaped and welded to create the necessary components for an exhaust system, such as pipes and mufflers. However, it is important to consider the specific requirements and regulations for exhaust systems in terms of material composition and performance.
- Q:How do you prevent steel round bars from rusting during transportation?
- To prevent steel round bars from rusting during transportation, there are several effective measures that can be taken. 1. Proper packaging: The first step is to ensure that the steel round bars are properly packaged. They should be securely wrapped and sealed in a moisture-resistant packaging material such as plastic or shrink wrap. This will create a barrier against moisture and prevent direct contact with air. 2. Desiccants: Including desiccants, such as silica gel packets or moisture-absorbing clay, inside the packaging can help in absorbing any moisture that may be present. These desiccants will help to maintain a dry environment around the steel bars, reducing the chances of rust formation. 3. VCI (Volatile Corrosion Inhibitor) packaging: VCI packaging is an effective method to prevent rust during transportation. VCI materials release a protective vapor that forms a thin protective layer on the steel surface, inhibiting corrosion. VCI films or papers can be used to wrap the steel round bars, providing a long-lasting rust protection. 4. Proper storage conditions: During transportation, it is important to store the steel round bars in a dry and well-ventilated environment. Avoid exposing them to rain, humidity, or extreme temperature fluctuations. If possible, store them in a covered and climate-controlled area to minimize the risk of rust formation. 5. Regular inspection and maintenance: Regularly inspect the steel round bars during transportation to ensure that the packaging remains intact and no moisture has seeped in. If any damage or signs of moisture are detected, immediate action should be taken to rectify the issue and prevent rust from spreading. By implementing these preventive measures, the risk of rust formation on steel round bars during transportation can be significantly reduced, ensuring that they reach their destination in optimal condition.
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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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