Alloyed Round Bar and GB Standard System 1

Alloyed Round Bar and GB Standard System 2

Alloyed Round Bar and GB Standard

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Product Description:

OKorder is offering Round Bar at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

Product Applications:

After hot-rolled the products shaped into coil and delivery as finished product, including round, square, rectangular, hexagonal and so on. Since most of the products are round, it is generally called wire rod. Carbon steel wire rod is widely used in construction and manufacturing. Carbon steel wire rod is mainly used for reinforcement of reinforced concrete and welded structure or reprocessed (roberts , nail, etc.) materials, especially used to produce wire drawing, welding electrode, nails, spring, electronic, precise machinery parts and so on.

Product Advantages:

OKorder's Round Bar are durable, strong, and resist corrosion.

Main Product Features:

· Premium quality

· Prompt delivery & seaworthy packing (30 days after receiving deposit)

· Corrosion resistance

· Can be recycled and reused

· Mill test certification

· Professional Service

· Competitive pricing

Product Specifications:

Manufacture: Hot rolled

Grade: Q195 – 235

Certificates: ISO, SGS, BV, CIQ

Length: 6m – 12m, as per customer request

Packaging: Export packing, nude packing, bundled

Trademark	Rank	Chemical composition (quality score) %
		C	Si	Mn	S	P
		C	Si	Mn	S	P
			≤		≤	≤
Q235	A	0.14-0.22	0.30	0.30-0.65	0.050	0.045
Q235	B	0.12-0.20	0.30	0.30-0.70	0.045	0.045
Trademark	Rank	Pulling Test
		Bend PointΔs/Mpa		Tensile Strength	Elongation Ratioδ5%
					Elongation Ratioδ5%
		Thickness (Diameter) /MM			Thickness (Diameter) /MM
		≤16	16-40		≤16	16-40
		≥			≥
Q235	A	235	225	375-500	26	25
Q235	B	235	225	375-500	26	25

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: What makes stainless steel stainless?

A2: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.

Q3: Can stainless steel rust?

A3: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.

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Alloyed Round Bar and GB Standard

Q:What are the factors to consider when selecting a steel round bar?: There are several factors to take into account when choosing a steel round bar. Firstly, it is crucial to evaluate the grade of steel. Each grade has different properties and strengths, so it is important to consider the specific application and requirements. For instance, if high corrosion resistance is needed, stainless steel grades such as 304 or 316 may be appropriate, while carbon steel grades like A36 or 1018 may be more suitable for structural purposes. Secondly, the dimensions and size of the round bar should be considered. This includes the diameter, length, and tolerance requirements. The size should be chosen based on the specific application, load-bearing capacity, and available installation space. Thirdly, the condition and surface finish of the round bar should be assessed. This includes factors like surface roughness, straightness, and any surface defects. The surface finish should be selected based on the desired aesthetics, functional requirements, and manufacturing process. Another important aspect is the availability and cost of the steel round bar. It is crucial to consider the availability of the desired grade and size from suppliers, as well as the associated cost. Comparing prices from different suppliers is advisable to ensure the best value for money. Furthermore, it is necessary to evaluate the required mechanical properties of the steel round bar. This includes factors like tensile strength, yield strength, hardness, and ductility. The mechanical properties should align with the intended application and load-bearing requirements. Lastly, any additional requirements or certifications should be considered. This could include compliance with specific industry standards (e.g., ASTM, ISO), certifications (e.g., RoHS, REACH), or specific testing requirements (e.g., ultrasonic testing, impact testing). In conclusion, selecting a steel round bar involves considering the grade, dimensions, surface finish, availability, cost, mechanical properties, and any additional requirements. Taking these factors into account will ensure that the chosen steel round bar is suitable for the intended application and meets all necessary specifications.

Q:What are the advantages of using nickel-chromium alloy steel round bars?: There are several advantages of using nickel-chromium alloy steel round bars in various applications. Firstly, nickel-chromium alloy steel round bars have excellent corrosion resistance properties. The presence of nickel and chromium elements in the alloy enhances its ability to resist corrosion from various environmental factors such as moisture, chemicals, and oxidation. This makes these round bars suitable for use in challenging environments such as marine applications, chemical processing plants, and oil refineries. Secondly, nickel-chromium alloy steel round bars offer high temperature resistance. The combination of nickel and chromium elements in the alloy allows it to withstand elevated temperatures without losing its structural integrity. This makes them suitable for use in heat exchangers, furnaces, and other high-temperature applications. Additionally, nickel-chromium alloy steel round bars have superior mechanical properties. They exhibit excellent strength, toughness, and wear resistance, making them ideal for applications that require high load-bearing capabilities. These round bars also exhibit good ductility, allowing for ease of machining and fabrication. Moreover, nickel-chromium alloy steel round bars have good electrical conductivity. This makes them suitable for electrical and electronic applications where conductivity is essential, such as in the manufacturing of resistors, heating elements, and electrical connectors. Lastly, nickel-chromium alloy steel round bars are readily available and cost-effective. As a widely used material in various industries, these round bars are easily accessible and can be obtained at competitive prices. In summary, the advantages of using nickel-chromium alloy steel round bars include excellent corrosion resistance, high-temperature resistance, superior mechanical properties, good electrical conductivity, and cost-effectiveness. These characteristics make them a preferred choice for a wide range of applications in industries such as construction, automotive, aerospace, and electrical engineering.

Q:What are the different types of tests performed on steel round bars for quality control?: There are several types of tests performed on steel round bars for quality control purposes. These tests help to ensure that the steel bars meet the required standards and specifications. Some of the common tests conducted on steel round bars include: 1. Tensile Test: This test evaluates the tensile strength, yield strength, and elongation properties of the steel bars. It involves applying a pulling force to the bar until it breaks, measuring the maximum force the bar can withstand, and determining the bar's ability to stretch without fracturing. 2. Hardness Test: The hardness test measures the resistance of the steel bar to indentation or scratching. It provides an indication of the bar's strength and durability. Common hardness tests include Rockwell, Brinell, and Vickers tests. 3. Chemical Composition Analysis: This test determines the chemical composition of the steel round bars, including the percentage of various elements such as carbon, manganese, sulfur, phosphorus, and others. It ensures that the bars meet the specified chemical composition requirements. 4. Ultrasonic Testing: Ultrasonic testing uses high-frequency sound waves to detect any internal defects or discontinuities within the steel bars. This non-destructive test helps identify cracks, voids, or other defects that may affect the bar's structural integrity. 5. Dimensional Inspection: This test ensures that the steel round bars meet the required dimensional tolerances, including diameter, length, and straightness. It involves using precision measuring instruments such as calipers, micrometers, and gauges to verify the bar's dimensions. 6. Surface Quality Examination: This test inspects the surface condition of the steel bars for any defects, such as cracks, pits, scratches, or other surface irregularities. It is crucial to ensure that the bars have a smooth and defect-free surface for proper functionality and safety. 7. Microstructure Analysis: Microstructure analysis involves examining the steel bar's internal structure under a microscope. It helps determine the grain size, inclusion content, and overall microstructural integrity of the bars. This analysis provides insights into the bars' mechanical properties and their ability to withstand various loads and stresses. By performing these tests, manufacturers can ensure that the steel round bars meet the required quality standards and are suitable for their intended applications.

Q:What are the different cutting methods used for steel round bars?: There are several cutting methods commonly used for steel round bars, depending on the specific requirements and the tools available. Some of the most common cutting methods for steel round bars include: 1. Sawing: Sawing is a traditional cutting method that involves using a saw blade to cut through the steel round bar. This method is commonly used for smaller diameter round bars and is relatively simple and cost-effective. 2. Abrasive Cutting: Abrasive cutting involves using an abrasive wheel or disc to grind through the steel round bar. This method is particularly effective for cutting thicker and harder steel bars. It is commonly used in industrial applications where precision and speed are required. 3. Plasma Cutting: Plasma cutting is a thermal cutting method that uses a high-velocity jet of ionized gas to melt and remove the metal. This method is suitable for cutting steel round bars of various thicknesses and is known for its speed and precision. 4. Laser Cutting: Laser cutting is a precise and efficient cutting method that uses a high-powered laser beam to melt and vaporize the metal. This method is commonly used for cutting complex shapes and patterns in steel round bars. 5. Waterjet Cutting: Waterjet cutting involves using a high-pressure stream of water mixed with an abrasive material to cut through the steel round bar. This method is highly versatile and can cut through various thicknesses and types of steel. 6. Shearing: Shearing is a cutting method that involves using a specialized machine with blades to cut through the steel round bar. This method is commonly used for cutting smaller diameter round bars and is known for its speed and accuracy. It is important to carefully consider the specific requirements of the project and consult with experts to determine the most suitable cutting method for steel round bars.

Q:How do steel round bars compare to wood round bars?: Steel round bars and wood round bars have several distinct differences that set them apart. Firstly, steel round bars are significantly stronger and more durable than their wooden counterparts. Steel has a much higher tensile strength, making it capable of withstanding heavy loads and resisting bending or breaking. This makes steel round bars ideal for applications where strength and durability are paramount, such as in construction, engineering, or manufacturing. On the other hand, wood round bars have their own advantages. Wood is a natural material that is lightweight and easy to work with. It can be easily cut, shaped, and crafted to fit specific requirements. Additionally, wood has a warm and aesthetic appeal that steel lacks, making it a popular choice in furniture, interior design, and other decorative applications. Another significant difference lies in their resistance to environmental factors. Steel is highly resistant to moisture, pests, and rot, making it suitable for outdoor or high-moisture environments. Wood, however, is susceptible to these elements and requires regular treatment and maintenance to prevent damage. Cost is another factor to consider. Steel round bars are generally more expensive than wood round bars due to the higher cost of materials and production processes involved. Wood, being a natural resource, is often more cost-effective. Ultimately, the choice between steel and wood round bars depends on the specific requirements of the project. If strength, durability, and resistance to environmental factors are crucial, steel round bars are the preferable choice. However, if a lightweight, aesthetic, and cost-effective option is required, wood round bars may be more suitable.

Q:What are the advantages of using molybdenum-alloy steel round bars?: Using molybdenum-alloy steel round bars in various applications provides several benefits. To begin with, the inclusion of molybdenum elevates the steel's strength and hardness, making it an optimal selection for industries that necessitate robust materials. By enhancing resistance to deformation under heavy loads, the addition of molybdenum increases the durability and longevity of the round bars. Additionally, molybdenum-alloy steel round bars exhibit exceptional heat resistance properties. Consequently, they are well-suited for applications involving high temperatures, such as the production of heat exchangers, boilers, and furnace components. The steel's capacity to endure extreme temperatures without compromising its strength and structural integrity is a significant advantage. Another advantage is the corrosion resistance provided by molybdenum. Molybdenum-alloy steel round bars demonstrate superior resistance to corrosion in diverse environments, including acidic and alkaline conditions. This makes them an optimal choice for corrosive industries like chemical processing, oil and gas, and marine environments. Moreover, molybdenum-alloy steel round bars offer excellent weldability and machinability. The molybdenum content ensures that the steel maintains its structural integrity during welding and machining processes, minimizing the risk of cracks or deformations. This ease of fabrication allows for greater flexibility in design and construction. Furthermore, molybdenum-alloy steel round bars possess good wear resistance, rendering them suitable for applications involving abrasive conditions. Their ability to withstand wear and tear ensures an extended service life, thereby reducing maintenance and replacement costs. In conclusion, the utilization of molybdenum-alloy steel round bars yields advantages such as increased strength, heat resistance, corrosion resistance, weldability, machinability, and wear resistance. These properties establish them as the preferred choice in various industries, where durability, reliability, and performance are of utmost importance.

Q:Can steel round bars be used in high-pressure applications?: Yes, steel round bars can be used in high-pressure applications. Steel round bars are known for their strength and durability, making them suitable for various industrial and mechanical applications. They have the ability to withstand high pressure and provide structural stability, making them a popular choice in industries such as oil and gas, construction, and manufacturing. However, it is important to choose the right grade and quality of steel round bars to ensure they can withstand the specific pressure requirements of the application.

Q:Can steel round bars be used in the manufacturing of marine propellers?: Yes, steel round bars can be used in the manufacturing of marine propellers. Steel is a commonly used material in the marine industry due to its high strength, durability, and corrosion resistance. Steel round bars can be machined and shaped into the desired propeller design, providing the necessary strength and stability required for marine applications. Additionally, steel can withstand the harsh conditions of saltwater environments, making it suitable for use in marine propellers.

Q:How do you determine the strength of a steel round bar?: Various methods can be used to determine the strength of a steel round bar, including physical testing and material specifications. One commonly used method involves conducting a tensile test, where the bar is pulled until it breaks. This test helps determine the ultimate tensile strength (UTS) of the steel, which is the maximum stress it can handle before fracturing. The UTS is typically measured in units of force per cross-sectional area, such as pounds per square inch (psi) or megapascals (MPa). Another important strength property to consider is the yield strength. This is the stress level at which the steel starts to permanently deform, without any increase in load. The yield strength is crucial in assessing the structural integrity of the bar, as it indicates the maximum load it can bear without undergoing plastic deformation. In addition to physical testing, the strength of a steel round bar can also be determined by examining its material specifications. Steel manufacturers provide information about the composition and mechanical properties of their products. This includes details about the steel grade, which indicates the alloying elements present in the steel and their concentrations. Different steel grades have varying strength properties, which can help assess the strength of the round bar. It is important to consider that factors like heat treatment or surface conditions can also influence the strength of a steel round bar. Heat treatment processes, such as quenching and tempering, can enhance the strength and hardness of the steel. Additionally, surface conditions like coatings or treatments can improve corrosion resistance. To accurately determine the strength of a steel round bar, it is recommended to consult the material specifications provided by the manufacturer and, if necessary, conduct physical tests like tensile testing.

Q:Can steel round bars be used for making turbine blades?: No, steel round bars are typically not used for making turbine blades. Turbine blades are often made from materials such as titanium or nickel-based superalloys, which provide the necessary strength, heat resistance, and aerodynamic properties required for efficient turbine operation.

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