Hot Rolled Alloy Steel Round Bars
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
You Might Also Like
Specification
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,CE
Thickness:
as required
Length:
as required
Net Weight:
as required
Hot Rolled Alloy Steel Round Bars
1. Commodity: Round steel bar
3. Technical: Hot rolling
2. Length: Min. 5.8meter, according to requirement.
3. Diameter: 16mm-250mm
5. Packing: In Bundle or according to your requirements.
4. Standard: GB/T 3077-1999(42CrMo) ; JIS SCM440; DIN 42CrMo4 ; ASTM 4140 ; BS 708M40
No.1 Rolling Line / Billet Size 150*150mm
16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |
34 | 35 | 36 | 37 | 39 | 40 | 42 | 43 | 45.6 |
46 | 47 | 52 | 54 | 55 | 56 | 58 | 60 |
No.2 Rolling Line / Billet Size 180*220mm/ 260*300mm
62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | |
70 | 72 | 73 | 75 | 78 | 80 | 82 | 83 | 85 |
86 | 88 | 90 | 92 | 95 | 100 | 103 | 105 | 110 |
114 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 |
No.3 Rolling Line / Round Billet Size 350mm/450mm/600mm
90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 |
140 | 150 | 160 | 170 | 180 | 190 | 200 | 210 | 220 |
230 | 240 | 250 |
- Q: Can steel round bars be used in high-temperature applications?
- Yes, steel round bars can be used in high-temperature applications as they have excellent thermal resistance and can withstand elevated temperatures without losing their structural integrity.
- Q: How do steel round bars compare to wrought iron bars?
- Steel round bars and wrought iron bars exhibit distinct disparities that distinguish them from each other. To begin with, steel round bars consist of an amalgam of iron and carbon, while wrought iron bars are comprised of pure iron with a low carbon content. This dissimilarity in composition results in contrasting properties. Steel round bars are renowned for their robustness and endurance, rendering them suitable for a wide array of purposes, including construction, manufacturing, and engineering. Conversely, wrought iron bars are pliable and more malleable, enabling them to be easily fashioned and molded into intricate designs. This characteristic renders wrought iron bars popular in decorative applications such as gates, fences, and ornamental pieces. Another distinction lies in their manufacturing processes. Steel round bars are typically manufactured through the process of hot rolling, which encompasses heating the steel billet and passing it through a series of rollers to fashion it into the desired round bar form. In contrast, wrought iron bars are formed via a labor-intensive procedure known as blacksmithing. This involves heating the iron and repeatedly pounding it to eliminate impurities and construct a fibrous structure, thereby resulting in its distinctive grainy appearance. In terms of expenses, steel round bars generally prove to be more economical compared to wrought iron bars. The manufacturing process for steel is more streamlined and efficient, thereby leading to reduced production costs. Conversely, wrought iron bars necessitate more time and labor, rendering them pricier. Finally, concerning corrosion resistance, steel round bars hold an advantage. Steel can be further alloyed with elements such as chromium, nickel, and molybdenum to augment its resistance against rust and corrosion. This renders steel round bars suitable for outdoor applications where they may encounter moisture and harsh environmental conditions. Wrought iron bars, although possessing some level of corrosion resistance, are more susceptible to rusting and require regular maintenance to prevent deterioration. In conclusion, steel round bars and wrought iron bars differ in terms of composition, strength, manufacturing process, cost, and corrosion resistance. The selection between the two relies on the specific requirements of the application, with steel round bars being favored for their strength and affordability, while wrought iron bars are often chosen for their malleability and decorative allure.
- Q: What is the thermal conductivity of a steel round bar?
- The thermal conductivity of a steel round bar typically ranges from 15 to 50 W/m*K, depending on the specific grade and composition of the steel.
- Q: What are the different types of steel round bar alloys for improved machinability?
- There are several types of steel round bar alloys that are known for their improved machinability. Some common alloys include free-machining steel alloys such as 12L14, 1215, and 1144. These alloys contain higher levels of sulfur, which helps break up the chips during machining and improves the overall machinability of the steel. Additionally, there are also stainless steel alloys such as 303 and 416, which are specifically designed for improved machinability and are often used in applications where corrosion resistance is required.
- Q: Can steel round bars be used for hydraulic applications?
- Yes, steel round bars can be used for hydraulic applications. Steel round bars offer high strength and durability, making them suitable for use in hydraulic systems that require robust components to handle high pressures and loads. Additionally, steel round bars can be easily machined and welded to meet specific hydraulic application requirements.
- Q: How are steel round bars used in the mining industry?
- Steel round bars are widely used in the mining industry for a variety of applications. One of the most common uses is in the construction and reinforcement of underground support systems. These bars are often used as roof bolts or rock bolts to provide stability and prevent cave-ins or roof falls in underground mines. Steel round bars are also used in the manufacturing of drilling equipment. They are frequently used as drill rods or drill bits, providing the necessary strength and durability to withstand the harsh conditions of drilling in mining operations. These bars are typically heat-treated to increase their hardness and resistance to wear, ensuring their longevity in the drilling process. Another important application of steel round bars in mining is in the production of grinding media for grinding mills. These bars, known as grinding rods, are used to grind and crush ore particles in the milling process. They are made from high-quality steel and have a specific hardness and toughness to effectively break down the ore into smaller particles, facilitating the extraction of valuable minerals. Additionally, steel round bars are used in the construction of conveyor systems in mining operations. They are commonly used as support bars or rollers in conveyor belts, ensuring the efficient transport of mined materials from one location to another. In summary, steel round bars play a crucial role in the mining industry. From providing support and stability in underground mines to manufacturing drilling equipment and grinding media, these bars are essential in various mining processes, contributing to the overall efficiency and productivity of mining operations.
- Q: Can steel round bars be used in the production of machinery?
- Yes, steel round bars can be used in the production of machinery. Steel round bars are commonly used in various industries, including machinery manufacturing. They provide strength, durability, and versatility, making them suitable for applications such as shafts, axles, gears, and other critical components in machinery.
- Q: What is the maximum aluminum content allowed for steel round bars?
- The maximum aluminum content allowed for steel round bars varies depending on the specific steel grade and industry standards. In general, the aluminum content in steel round bars is typically limited to a maximum of 0.03-0.06% for most commercial and structural steel grades. However, there are certain specialized steel grades, such as those used in the aerospace industry, where higher levels of aluminum content may be allowed. It is important to consult the specific steel grade's technical specifications or industry standards to determine the maximum allowable aluminum content for steel round bars.
- Q: What are the different types of defects that can occur in steel round bars?
- There are several types of defects that can occur in steel round bars. These defects can vary in their severity and impact on the overall quality and performance of the bars. Some of the common types of defects found in steel round bars include: 1. Surface defects: These defects are visible on the external surface of the bar and can include scratches, pits, and scaling. While surface defects may not affect the structural integrity of the bar, they can impact its aesthetic appeal and can potentially lead to corrosion if not properly addressed. 2. Internal defects: Internal defects are imperfections that occur within the body of the steel round bar. These defects can include voids, inclusions, and segregation. Internal defects can weaken the bar's mechanical properties and compromise its structural integrity. They can also lead to cracking or failure under stress. 3. Dimensional defects: Dimensional defects refer to variations in the size or shape of the steel round bar. These defects can occur during the manufacturing process and can include variations in diameter, length, or straightness. Dimensional defects can affect the bar's functionality and compatibility with other components in a structure or machinery. 4. Decarburization: Decarburization is a defect that occurs when the surface layer of the steel round bar loses carbon due to exposure to high temperatures during manufacturing or heat treatment processes. This defect can weaken the bar's hardness and strength, making it more susceptible to wear, fatigue, or failure. 5. Lamination: Lamination defects occur when there are layers or separations within the steel round bar. These defects can result from improper rolling or processing techniques. Lamination defects can reduce the bar's strength and ductility, making it prone to fracture or failure. 6. Incomplete heat treatment: Heat treatment is often used to enhance the mechanical properties of steel round bars. However, if the heat treatment process is not performed correctly or if there are inconsistencies in the cooling or reheating process, the bar may have incomplete or uneven heat treatment. This can result in variations in hardness, strength, or toughness along the length of the bar. It is important to note that the severity and impact of these defects can vary depending on the specific application and requirements of the steel round bar. Manufacturers and quality control teams employ various testing and inspection methods to detect and mitigate these defects, ensuring that the bars meet the necessary standards and specifications.
- Q: Why is the round bar bent?
- Round steel with hooks the aim is to increase the bond between concrete and prevent the component in the tension will be reinforced. Therefore, round bars should be 180 degrees of hook, should set up 90 degree hook ribbed bar.
Send your message to us
Hot Rolled Alloy Steel Round Bars
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
Similar products
Hot products
Hot Searches
Related keywords
