Steel Round Bars Reliable Manufacturer from China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 400 m.t.
- Supply Capability:
- 4555553 m.t./month
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Description of steel round bar:
1. Commodity: Round steel bar
3. Technical: Hot rolling
2. Length: Min. 5.8meter, according to requirement.
Festures of steel round bar:
1.Dia 80-800mm Length:2000-13000mm or as required
2.Technique:Forged
Specifications of steel round bar:
1. Standards: AISI 4340 8620 8640 4320 , JIS SNCM8 GB:40CrNiMoA
2. Specification: Dia: 80~450mm Length:2000-13000mm or as required
3. Process: EAF+LF+VD ( necessary) UT+ Peeled +Turned + Heat Treatment (optional). It is used in the manufacture of a higher strength and higher quenching and tempering section of the 35CrMo steel, like big locomotive traction gears, supercharger drive gear, rear axle, the connecting rod and the spring load greatly clip,it can also be used for 2000m following oil well drill pipe joints and fishing tools,and can be used for bending machine dies, etc.
4. Chemical Composition (%):
C | Si | Mn | S | P | Cr | Ni | Cu | Mo |
0.37-0.44 | 0.17-0.37 | 0.40-0.80 | 0.025(max) | 0.025(max) | 0.60-0.90 | 1.25-1.65 | 0.025(max) | 0.15-0.25 |
Images of steel round bar:
FAQ:
1. What is your package?
Packing situation: standard seaworthy packing or as customer required.
2. How long is the lead time?
Delivery time: 45 days after order confirmed.
- Q: How do you calculate the weight of a steel round bar?
- To calculate the weight of a steel round bar, you can use the formula: Weight = (Diameter^2 / 4) * Length * Density In this formula, the Diameter refers to the diameter of the round bar, Length represents the length of the bar, and Density is the density of the steel material. First, you need to measure the diameter of the steel round bar accurately. Then, square the diameter by multiplying it by itself. Divide the result by 4. This will give you the cross-sectional area of the round bar. Next, multiply the cross-sectional area by the length of the bar. Finally, multiply this value by the density of the steel material. The density of steel is typically around 7850 kg/m^3. The result of this calculation will give you the weight of the steel round bar in grams or kilograms, depending on the units used for the length and density.
- Q: Can steel round bars be used in the production of bearings?
- No, steel round bars cannot be used in the production of bearings. Bearings require specific materials that can withstand high loads and offer low friction. Steel round bars are not designed with the necessary characteristics to fulfill these requirements. Instead, bearings are typically made from specialized materials such as chrome steel, stainless steel, or ceramic materials, which offer excellent durability and performance under the demanding conditions in which bearings operate.
- Q: What are the different grades of alloy steel round bars?
- Alloy steel round bars come in various grades, each with unique properties and characteristics. Some of the different grades of alloy steel round bars include: 1. 4140: This grade of alloy steel round bar is known for its high strength, toughness, and abrasion resistance. It is commonly used in applications such as axles, shafts, and gears. 2. 4340: This grade of alloy steel round bar is known for its excellent hardenability and high tensile strength. It is often used in applications that require high strength and durability, such as aircraft landing gear components and crankshafts. 3. 8620: This grade of alloy steel round bar is known for its case hardening properties, making it suitable for applications that require a combination of toughness and wear resistance. It is commonly used in gears, pinions, and camshafts. 4. 316: This grade of alloy steel round bar is a stainless steel grade that offers excellent corrosion resistance, making it suitable for applications in marine environments or where exposure to corrosive substances is a concern. 5. 52100: This grade of alloy steel round bar is known for its high hardness and wear resistance. It is commonly used in the manufacturing of bearings and other high-wear components. 6. 4340M: This grade of alloy steel round bar is similar to 4340, but with added molybdenum for improved hardenability and strength. It is often used in applications that require high strength and toughness, such as aircraft landing gear components and crankshafts. These are just a few examples of the different grades of alloy steel round bars available. The choice of grade will depend on the specific requirements of the application, such as desired mechanical properties, corrosion resistance, and heat treatment capabilities.
- Q: Can steel round bars be used for making drill bits?
- Steel round bars cannot be utilized in the production of drill bits. Drill bits necessitate distinct materials and manufacturing techniques to guarantee their endurance and efficacy. Typically, drill bits are crafted from high-speed steel (HSS), cobalt steel, or carbide. These materials are selected for their hardness, heat resistance, and ability to endure the substantial forces and temperatures generated while drilling. Conversely, steel round bars are not purposely designed or manufactured to meet the requirements of drill bits. Implementing steel round bars in the production of drill bits would result in substandard performance, heightened abrasion, and potential fracture during drilling activities. It is imperative to employ drill bits that are specifically designed and manufactured for this purpose to ensure efficient and secure drilling operations.
- Q: How do you prevent scaling of steel round bars during heat treatment?
- To minimize scaling of steel round bars during heat treatment, various steps can be taken: 1. Employ a protective atmosphere: Heat treatment can be conducted in a controlled gas environment, such as a furnace with regulated gas composition. This shields the steel bars from oxygen exposure, the main cause of scaling. 2. Employ a protective coating: Coating the steel round bars with a substance like refractory material or a thin layer of paint can help prevent scaling. This creates a barrier between the steel and the oxygen in the atmosphere, reducing the likelihood of scaling. 3. Use a reducing atmosphere: Instead of a regular atmospheric environment, heat treatment can be carried out in a reducing atmosphere. This involves introducing gases like hydrogen or nitrogen into the furnace, reacting with oxygen to create a controlled environment that prevents scaling. 4. Control the heating rate: Rapid heating can lead to increased scaling due to sudden exposure to high temperatures. By controlling the heating rate, such as gradually increasing temperature, scaling can be minimized. 5. Limit the exposure time: Reducing the duration that steel round bars are exposed to high temperatures helps prevent scaling. This can be achieved by optimizing the heat treatment process and avoiding prolonged exposure to elevated temperatures. 6. Clean the surface before heat treatment: Before heat treatment, it is essential to remove any contaminants or residues from the surface of the steel round bars. This can be achieved through mechanical methods like wire brushing or chemical cleaning techniques, ensuring a clean surface that is less prone to scaling. Implementing these preventive measures effectively minimizes scaling of steel round bars during heat treatment, resulting in improved quality and performance of the treated bars.
- Q: Can steel round bars be used in the manufacturing of kitchenware?
- Yes, steel round bars can be used in the manufacturing of kitchenware. Steel is a durable and versatile material that can be easily molded into various shapes and sizes. It is commonly used in the production of kitchen utensils, cookware, and cutlery due to its strength, corrosion resistance, and heat conductivity.
- Q: What are the different grades of steel round bars?
- The different grades of steel round bars include mild steel, carbon steel, alloy steel, and stainless steel.
- Q: What are the standard sizes of steel round bars?
- The standard sizes of steel round bars vary, but common diameters range from 1/4 inch to 12 inches.
- Q: Can steel round bars be plated?
- Yes, steel round bars can be plated. Plating is a common process used to enhance the appearance and protect the surface of steel bars. The plating can be done using various materials such as chrome, nickel, or zinc, depending on the desired outcome and application of the steel bars. Plating can provide additional corrosion resistance, improve hardness or wear resistance, and also create an attractive finish. It is important to note that proper preparation and cleaning of the steel surface before plating is crucial to ensure a durable and high-quality plated finish.
- Q: What are the limitations of using steel round bars?
- Using steel round bars in various applications has several limitations. One such limitation is their vulnerability to corrosion. Steel round bars, particularly those made of carbon steel, are prone to rusting when exposed to moisture or harsh environments. This can have a significant impact on their structural integrity and lifespan. Another limitation is their weight. Steel is a heavy material, and round bars can be especially cumbersome to handle and transport, especially in large quantities. This can make the installation process more difficult and increase the overall project cost. In addition, steel round bars may not be suitable for applications that require high levels of flexibility or bending. Their rigid nature makes it challenging to shape or mold them into intricate designs. This limitation can restrict their use in certain industries or architectural designs that demand more versatile materials. Another factor to consider is the cost of steel round bars. Depending on the grade, quality, and market conditions, the price of steel round bars can fluctuate significantly. This can be a financial limitation for projects with tight budgets or when the cost of raw materials is a crucial factor. Lastly, steel round bars may not be suitable for applications that require high resistance to extreme temperatures. While steel has good thermal conductivity, certain temperature ranges can affect its structural properties, potentially causing weaknesses or deformations. Overall, steel round bars have widespread use and offer many advantages. However, it is essential to consider their limitations such as susceptibility to corrosion, weight, limited flexibility, cost, and temperature sensitivity when selecting materials for specific applications.
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Steel Round Bars Reliable Manufacturer from China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 400 m.t.
- Supply Capability:
- 4555553 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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