Hot Dip Galvanized Steel Round Bars
- 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
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,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
13-300mm
Length:
6-12m
Net Weight:
2mt
Hot Dip Galvanized Steel Round Bars
Product Description of Hot Dip Galvanized Steel Round Bars
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 Hot Dip Galvanized Steel Round Bars
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 Hot Dip Galvanized Steel Round Bars
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 Hot Dip Galvanized Steel Round Bars
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of Hot Dip Galvanized Steel Round Bars
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 advantages of using chromium-alloy steel round bars?
- There are several advantages to using chromium-alloy steel round bars. Firstly, chromium-alloy steel round bars have excellent corrosion resistance properties. The addition of chromium to the steel increases its ability to withstand corrosion and oxidation, making it suitable for use in harsh environments or applications where exposure to moisture or chemicals is a concern. This corrosion resistance helps to prolong the lifespan of the round bars, reducing maintenance and replacement costs. Secondly, chromium-alloy steel round bars offer high strength and durability. The alloying of chromium with steel enhances its mechanical properties, such as tensile strength, hardness, and toughness. This makes chromium-alloy steel round bars ideal for applications that require high strength and resistance to wear and tear, such as construction, heavy machinery, and automotive industries. Another advantage of using chromium-alloy steel round bars is their heat resistance. The addition of chromium improves the heat resistance of the steel, allowing it to maintain its strength and structural integrity even at elevated temperatures. This makes it suitable for use in high-temperature applications, such as furnace components, boilers, and heat exchangers. Furthermore, chromium-alloy steel round bars are known for their excellent machinability. The alloying elements in the steel enhance its ability to be easily machined, allowing for precise shaping and finishing. This makes it easier and more cost-effective to manufacture complex components or parts using chromium-alloy steel round bars. Lastly, chromium-alloy steel round bars are readily available in the market. Due to their popularity and wide range of applications, chromium-alloy steel round bars can be easily sourced from various suppliers. This availability ensures a consistent supply of the material, reducing production downtime and lead times. Overall, the advantages of using chromium-alloy steel round bars include corrosion resistance, high strength and durability, heat resistance, excellent machinability, and availability. These properties make chromium-alloy steel round bars a versatile and reliable choice for a wide range of applications in various industries.
- Q:What is the difference between a smooth and a ribbed steel round bar?
- A smooth steel round bar and a ribbed steel round bar differ in their surface texture and purpose. A smooth steel round bar has a uniform and even surface without any ridges or indentations. This type of bar is typically used in applications where a smooth and polished appearance is desired, such as in decorative or architectural projects. Smooth bars are also commonly used in machining processes where a smooth surface is required for precision and accuracy. On the other hand, a ribbed steel round bar features raised ridges or ribs along its length. These ribs provide improved grip and traction, making ribbed bars ideal for applications that require a high level of strength and stability. Ribbed bars are commonly used in the construction industry for reinforcing concrete structures such as buildings, bridges, and highways. The ridges on the bar increase the bonding strength between the concrete and the steel, enhancing the overall structural integrity. In summary, the main difference between a smooth and a ribbed steel round bar lies in their surface texture and intended use. While smooth bars are used for their polished appearance and precision machining, ribbed bars are designed to provide enhanced grip and reinforcement in concrete structures.
- Q:Can steel round bars be used for shafting applications?
- Yes, steel round bars can be used for shafting applications. Steel round bars are commonly used in various industries for shafting purposes due to their high strength, durability, and ability to withstand rotational forces. They provide excellent stability and support for transmitting power or motion in a wide range of applications, such as machinery, automotive, construction, and manufacturing.
- Q:What is the difference between a rough turned and a precision ground steel round bar?
- A rough turned steel round bar is a raw material that has undergone minimal machining, leaving a slightly rough surface finish. It is typically used for applications where a high level of precision is not required, such as structural components. On the other hand, a precision ground steel round bar is a finished product that has undergone precise machining to achieve a smooth and accurate surface finish. This process ensures tight dimensional tolerances and a consistent diameter throughout the length of the bar. Precision ground bars are commonly used in applications that require close dimensional control and a high level of accuracy, such as in machinery and tooling.
- Q:What are the different types of heat treatments used for steel round bars?
- The different types of heat treatments used for steel round bars include annealing, normalizing, quenching and tempering, and case hardening.
- Q:How do you prevent steel round bars from rusting?
- To prevent rusting of steel round bars, there are several effective methods at your disposal: 1. Employ a protective coating: One effective way to prevent rust on steel round bars is to apply a protective coating. This can be accomplished through the use of paint, epoxy, or other coatings that are resistant to corrosion. The coating acts as a barrier between the steel and moisture, thus preventing oxidation and the formation of rust. 2. Ensure dryness of the bars: Moisture is a key factor in the formation of rust. Therefore, it is crucial to keep the steel round bars dry at all times. Store them in a dry area, away from water or humidity. If the bars come into contact with water, be sure to thoroughly dry them to prevent any residual moisture from causing rust. 3. Implement proper ventilation: Adequate ventilation is essential for reducing moisture levels in the air, thereby preventing rust. Make sure that the storage area or facility where the steel round bars are kept has good airflow and is well-ventilated. This will minimize the accumulation of moisture and the formation of rust. 4. Utilize corrosion inhibitors: Corrosion inhibitors are chemical compounds that can be applied to the surface of steel round bars to prevent rust. These inhibitors work by creating a protective layer on the steel, inhibiting the oxidation process. There are various types of corrosion inhibitors available, so choose the one that fits your specific needs. 5. Regularly maintain and inspect: Routinely inspect the steel round bars for any signs of rust or damage. If any rust spots are detected, promptly remove them using a wire brush or sandpaper, and apply a fresh coat of protective coating. Additionally, ensure that the bars are stored in a clean and dry environment to minimize the risk of rust formation. By adhering to these preventive measures, you can significantly decrease the likelihood of rusting in steel round bars and extend their lifespan.
- Q:How do steel round bars compare to titanium round bars?
- Steel round bars and titanium round bars possess distinct properties and characteristics that render them suitable for various applications. Below is a comparative analysis of the two: 1. Strength: In terms of strength-to-weight ratio, titanium round bars surpass steel round bars. This implies that titanium can endure larger loads and stresses while being lighter in weight compared to steel. Nevertheless, steel round bars generally exhibit greater strength and rigidity than titanium, making them ideal for heavy-duty applications necessitating high strength. 2. Resistance to Corrosion: Titanium round bars display an exceptional resistance to corrosion, even in harsh environments like saltwater. Conversely, steel is prone to corrosion and necessitates additional protective measures (e.g., coatings or galvanization) to forestall rusting. Consequently, titanium round bars are preferred in applications where corrosion resistance is vital. 3. Density: Titanium round bars possess a lower density in comparison to steel round bars. This diminished density renders titanium well-suited for applications where weight reduction is critical, such as the aerospace and automotive industries. Steel round bars, with their higher density, are typically employed in applications where weight is of less concern. 4. Resistance to Temperature: Titanium round bars exhibit excellent resistance to heat, retaining their mechanical properties even at high temperatures. Conversely, steel round bars may lose their strength and become brittle when subjected to elevated temperatures. Hence, titanium round bars are suitable for applications requiring resistance to elevated temperatures. 5. Cost: Generally, steel round bars are more cost-effective than titanium round bars. Titanium is an expensive metal due to its scarcity and intricate extraction process. The cost disparity between the two materials can be significant, making steel round bars more favorable for budget-conscious projects. In conclusion, the selection between steel round bars and titanium round bars hinges on the specific requirements of the application. Steel is preferable for its superior strength and affordability, whereas titanium offers advantages such as high strength-to-weight ratio, corrosion resistance, temperature resistance, and lower density.
- Q:How do you calculate the cross-sectional area of a steel round bar?
- In order to determine the cross-sectional area of a steel round bar, it is necessary to possess knowledge of either its diameter or radius. The formula for calculating the cross-sectional area of a circle is A = πr^2, wherein A represents the area and r denotes the radius of the circle. When provided with the diameter of the round bar, one can simply divide it by 2 to obtain the radius. Once the radius is ascertained, it can be substituted into the formula to compute the cross-sectional area. It is important to bear in mind that the value of π is approximately 3.14159.
- Q:How do steel round bars compare to fiberglass round bars?
- Steel round bars and fiberglass round bars have different properties and applications, making them suitable for various purposes. Steel round bars are known for their high strength and durability. They are commonly used in construction, manufacturing, and engineering industries, where strength and load-bearing capacity are crucial. Steel round bars can withstand heavy loads, making them ideal for structural applications such as beams, columns, and supports. Additionally, steel round bars have excellent resistance to impact, wear, and corrosion, making them suitable for outdoor and high-stress environments. On the other hand, fiberglass round bars offer unique advantages. Fiberglass is a lightweight and non-conductive material, making it suitable for applications where electrical conductivity or weight is a concern. Fiberglass round bars are commonly used in the electrical and telecommunications industries, where they provide insulation and safety. They are also resistant to corrosion, making them suitable for outdoor and marine applications. In terms of cost, steel round bars are generally more affordable compared to fiberglass round bars. Steel is a widely available material, and its production costs are relatively low. Fiberglass, on the other hand, requires specialized manufacturing processes and materials, which can increase its cost. Ultimately, the choice between steel and fiberglass round bars depends on the specific requirements of the application. If strength, durability, and load-bearing capacity are critical, steel round bars are an excellent choice. However, if weight, electrical insulation, or corrosion resistance are important considerations, fiberglass round bars may be more suitable.
- Q:What are the different heat treatment processes used for steel round bars?
- Steel round bars can undergo several heat treatment processes to enhance their mechanical properties and overall performance. These processes include annealing, normalizing, quenching, tempering, and case hardening. 1. Annealing involves heating the steel round bars to a specific temperature and then slowly cooling it to relieve internal stresses and improve ductility. It also refines the grain structure, making the steel softer and more workable. 2. Normalizing is similar to annealing, but the steel round bars are cooled in still air. This process refines the grain structure and improves mechanical properties like strength and toughness. 3. Quenching is a rapid cooling process where the steel round bars are immersed in a quenching medium such as oil, water, or polymer. It achieves high hardness and strength by transforming the steel's microstructure into martensite. However, it can also make the steel more brittle, so tempering is often done afterward. 4. Tempering involves reheating the quenched steel round bars to a specific temperature and then slowly cooling it. This process reduces the brittleness caused by quenching and improves toughness and ductility. The temperature and duration of tempering can be adjusted for desired mechanical properties. 5. Case hardening is a surface heat treatment process that increases hardness and wear resistance. Carbon or other alloying elements are introduced to the steel's surface, which is then heated to a specific temperature. This creates a hardened outer layer while maintaining a tough core. These heat treatment processes offer steel round bars a wide range of mechanical properties and performance characteristics, making them suitable for various applications in industries like automotive, construction, manufacturing, and aerospace. The choice of specific heat treatment process depends on desired properties, steel composition, and intended application of the round bars.
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Hot Dip Galvanized Steel Round Bars
- 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
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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