Q235 stainless round steel bar for construction
- Ref Price:
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25000 m.t.
- Supply Capability:
- 10000 m.t./month
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- Quality Product
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Usage and Applications
These steels are used for ball and roller bearing applications and are comprised of low carbon steels and high carbon through harden able steel.
First the famous 1C-1.5Cr steel from which the majority of bearings are made. Its structure is apparently well-understood and the focus is on purity in order to avoid inclusions which initiate fatigue during rolling contact. Then there is the M50 steel and its variants, from which bearings which serve at slightly higher temperatures in aeroengines are manufactured, based on secondary-hardened marten site.
Tapered roller bearing are generally used to support combined load mainly consisting of radial load. Their cups are separable for easy assembling ,During mounting and using, radial clearance and axial clearance can be adjusted and preloaded mounting can be made.
Packaging & Delivery
Packaging Detail: ASTM 52100 Steel in seaworthy packing or on customer request; Packed in bundles with standard export sea-worthy package or as customer require
Delivery Detail: 45 days after confirmed
Trade terms: FOB, CFR, CIF ou as customer's required
MOQ: 25 tons or at customer's demands. If the quantity is good, the price will be better.
Production Flow of Chinese Standard Round Bar
1. The common processes are preheated forging quenching, dual refinement solution process, cooling quenching and isothermal quenching. We use heat treatment for dual refinement solution process.
2. Material prepare (billet) — heat up — rough rolling — precision rolling — cooling — packing — storage and transportation
Characteristics of Chinese Standard Round Bar
1. The steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%.
2. As the carbon percentage content rises, steel has the ability to become harder and stronger through heat treating; however it becomes less ductile.
3. Quality should be in conformity with the specification of the manufacturer. Quantity and packing conditions should be in conformity with the term in the contract.
4. Regardless of the heat treatment, higher carbon content reduces weld ability. In carbon steels, the higher carbon content lowers the melting point.
- Q:
- Yes, steel round bars can be heat treated to improve their mechanical properties. Heat treatment is a process that involves heating the steel to a specific temperature, holding it at that temperature for a certain period of time, and then cooling it rapidly or slowly. This process can alter the microstructure of the steel, resulting in changes to its hardness, strength, toughness, and other mechanical properties. There are several types of heat treatment processes that can be used on steel round bars, depending on the desired outcome. For example, annealing is a heat treatment process that involves heating the steel to a specific temperature and then slowly cooling it. This process helps to relieve internal stresses in the steel, improve its ductility, and make it easier to machine. Another common heat treatment process is quenching and tempering. This involves heating the steel to a specific temperature and then rapidly cooling it, usually by immersing it in a quenching medium such as oil or water. This rapid cooling process helps to harden the steel, making it stronger and more resistant to wear and abrasion. After quenching, the steel is often tempered by reheating it to a lower temperature, which helps to reduce its brittleness and improve its toughness. In addition to annealing and quenching and tempering, other heat treatment processes such as normalizing, case hardening, and precipitation hardening can also be used to improve the mechanical properties of steel round bars. These processes involve different heating and cooling techniques, and are used to achieve specific outcomes based on the desired properties of the steel. Overall, heat treatment is a versatile and effective method for improving the mechanical properties of steel round bars. By carefully controlling the heating and cooling process, it is possible to achieve significant improvements in hardness, strength, toughness, and other properties, making the steel suitable for a wide range of applications.
- Q:
- No, steel round bars are not inherently corrosion resistant. Steel is primarily made of iron, and iron is prone to rusting when exposed to moisture and oxygen. However, there are certain types of steel that are specifically designed to be corrosion resistant. These types of steel, such as stainless steel, contain additional alloying elements like chromium and nickel, which form a protective layer on the surface of the steel, preventing rust and corrosion. So, while regular steel round bars are not corrosion resistant, there are corrosion-resistant options available in the form of stainless steel round bars.
- Q:
- In the automotive industry, the most common types of steel round bar surface treatments used are galvanization, electroplating, and powder coating. Galvanization involves coating the steel with a layer of zinc to protect it from corrosion. Electroplating is a process where a thin layer of another metal, such as chrome or nickel, is applied to the steel surface for enhanced aesthetics and protection. Powder coating, on the other hand, involves applying a dry powder to the steel surface and then curing it under high heat to create a durable and attractive finish. These surface treatments help improve the durability, appearance, and overall performance of steel round bars used in automotive applications.
- Q:
- Due to their inherent strength, durability, and versatility, steel round bars find extensive use in the production of machinery and equipment. These bars, typically made from carbon steel or alloy steel, are available in various diameters and lengths. One of the common applications of steel round bars is in fabricating shafts and axles, which are crucial for transmitting rotational motion and torque in machinery. These bars offer the necessary strength and stiffness to withstand the forces and stresses experienced during operation. They are often machined precisely and subsequently heat-treated to enhance their mechanical properties, such as hardness and toughness. Another significant use of steel round bars is in the manufacture of gears and sprockets. These components are essential for transmitting power and motion between different machine parts. Steel round bars are machined to form teeth or cogs that interlock, ensuring smooth and efficient operation. The high strength and wear resistance of steel enable gears and sprockets to endure heavy loads and repetitive motion without distorting or failing. Steel round bars also find application in manufacturing various machine components like bearings, couplings, and fasteners. Bearings, for example, depend on the strength and hardness of steel to support rotating or sliding shafts while minimizing friction and wear. Couplings, on the other hand, utilize steel round bars to connect different machine parts, efficiently transmitting power and motion. Steel round bars also serve as fasteners, providing a secure and dependable connection between different machine elements. Furthermore, steel round bars are frequently used in constructing machine frames and structures. Their high strength-to-weight ratio makes them ideal for providing structural support and stability. By utilizing steel round bars, manufacturers can create robust and reliable machinery and equipment capable of withstanding heavy loads, vibrations, and other challenging operating conditions. In conclusion, steel round bars play a vital role in the manufacturing of machinery and equipment. Their exceptional strength, durability, and versatility make them a favored choice for a wide range of applications. Whether it is for shafts, gears, bearings, or machine frames, steel round bars provide the necessary mechanical properties to ensure the reliable and efficient operation of machinery and equipment.
- Q:
- Steel round bars have the capability to undergo machining. Machining is a procedure that entails eliminating material from a workpiece in order to achieve the desired form, size, or texture. Steel round bars are frequently machined for the purpose of creating various components, including shafts, bolts, and fasteners. Turning, milling, drilling, and grinding are some of the machining processes that can be employed to shape and cut the steel round bars. However, the machinability of steel can differ depending on factors such as the steel's composition, hardness, cutting tools, and machining parameters. It is crucial to employ appropriate machining techniques and tools in order to ensure accurate and efficient outcomes when machining steel round bars.
- Q:
- Steel round bars are commonly used in the manufacturing of lifting equipment due to their high strength and durability. These bars are often used to construct the main structural components, such as the frames or arms, of lifting equipment like cranes or hoists. The round shape of the bars provides stability and prevents bending or distortion when heavy loads are lifted. Additionally, the steel material ensures the equipment can handle the stress and weight, making it reliable and safe for lifting operations.
- Q:
- Steel round bars are capable of being threaded or machined. Threading involves the creation of internal or external threads on the surface of a steel round bar, enabling it to connect or fasten to other components. Meanwhile, machining entails the utilization of diverse cutting tools and techniques to eliminate material from the steel round bar, thereby shaping it into the desired form or size. Consequently, both threading and machining can be employed on steel round bars to fulfill specific requirements and applications, including the production of threaded rods, bolts, or customized components.
- Q:
- Yes, steel round bars can be used in the manufacturing of office furniture. Steel is a versatile and durable material that can be shaped into various forms, including round bars. These round bars can be used as structural components in office furniture, such as table legs, chair frames, or support beams. Steel round bars provide strength and stability to the furniture, making it suitable for heavy use in office environments. Additionally, steel can be finished in different ways, such as powder coating or chrome plating, to enhance its appearance and match the aesthetic of the office space. Overall, using steel round bars in the manufacturing of office furniture offers durability, stability, and a modern look.
- Q:
- Yes, steel round bars can be prone to deformation under certain conditions. Factors such as excessive heat, extreme pressure, or improper handling can cause steel round bars to bend, warp, or twist. However, when manufactured and used properly, steel round bars are highly durable and resistant to deformation.
- Q:
- Round bars are produced using various types of steel. The most common options are as follows: 1. Carbon Steel: This basic steel variant contains a low carbon content (typically less than 1%) and is recognized for its robustness and durability. Carbon steel is often utilized in construction and structural projects. 2. Alloy Steel: By introducing elements like manganese, chromium, or nickel to carbon steel, alloy steel is created. These additives enhance the steel's strength, hardness, and ability to resist corrosion. Machinery and automotive components frequently employ alloy steel round bars. 3. Stainless Steel: Stainless steel is composed of at least 10.5% chromium by mass. This high chromium content grants stainless steel its distinctive properties, including corrosion resistance and a shiny appearance. Stainless steel round bars find wide applications in the food industry, construction, and in environments requiring high corrosion resistance. 4. Tool Steel: Designed to endure high temperatures and resist wear and tear, tool steel is a specialized steel type. It is commonly employed in the production of tools, dies, and in settings necessitating exceptional strength and hardness. 5. Duplex Stainless Steel: This stainless steel variant combines austenite and ferrite phases in its microstructure. As a result, it possesses superior strength and corrosion resistance compared to regular stainless steel. Duplex stainless steel round bars are frequently utilized in marine and chemical industries. In summary, the selection of steel for round bars is contingent upon specific requirements such as strength, corrosion resistance, and temperature resistance, depending on the intended application.
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