Grade AISI5152 CNBM Alloy Special Steel Round Bar
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t
- Supply Capability:
- 10000 m.t/month
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Specification
Specifications of Round Bar
Diameter: 4mm - 800mm
Length: Max 12m
Heat Treatment: Normalizing, Annealing, Tempering, Quenching
Chemical Composition and Mechanical Properties
Chemical Composition | Mechanical Properties(In Quenched & Tempered State) | ||
C | 0.17-0.23 | Tensile strength(MPA) | 930 |
Si | 0.17-0.37 | Yield strength (MPA) | 735 |
Mn | 0.90-1.20 | Elongation(δ5/%) | 10 |
Cr | 0.90-1.20 | Reduction in Area (ψ/%) | 45 |
Mo | 0.05 | Impact (J) | 47 |
P | ≤0.030 |
|
|
S | ≤0.030 |
|
|
V | --- | Hardness | 187HBW |
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Usage and Applications of Round Bar
1. Chinese standard steel bar is often used where large amounts of steel need to be formed, for example as structural steel.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Steel round bar is used in construction and a large number of architectural and engineering structures.
Packaging & Delivery of Round Bar
Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: 15~45 days
Trade terms: FOB, CFR, CIF
MOQ: 30 metric tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: Theprice invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
Production Flow of 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
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: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q4: What makes stainless steel stainless?
A4: 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.
Q5: Can stainless steel rust?
A5: 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.
- Q: What are the different forming processes for special steel?
- There are several forming processes for special steel, including hot forming, cold forming, and powder metallurgy. Hot forming involves heating the steel to a high temperature and then shaping it through processes like forging or rolling. Cold forming, on the other hand, involves shaping the steel at room temperature using processes like bending or extrusion. Powder metallurgy involves compacting metal powders and then sintering them to create a solid piece. These forming processes allow for the production of special steel with unique properties and shapes to meet various industrial needs.
- Q: Can special steel be used in the production of precision instruments?
- Yes, special steel can be used in the production of precision instruments. Special steel, known for its high strength, corrosion resistance, and heat resistance, provides the necessary durability and stability required for precise measurements and operations in precision instruments.
- Q: What are the properties of case-hardening steel?
- Case-hardening steel typically has a low carbon content, making it relatively soft and ductile. However, when subjected to a specialized heat treatment process, such as carburizing or nitriding, the surface of the steel becomes hardened while the core remains relatively tough. This allows case-hardening steel to possess excellent wear resistance and high surface hardness, making it ideal for applications that require both strength and durability, such as gears, shafts, and other mechanical components.
- Q: How is alloy steel used in the production of gears and shafts?
- Alloy steel is used in the production of gears and shafts due to its high strength and durability. By adding different alloying elements such as chromium, nickel, and molybdenum, the steel's properties can be enhanced to withstand heavy loads, high temperatures, and wear. This makes alloy steel ideal for manufacturing gears and shafts that need to transmit power, resist deformation, and maintain their integrity under demanding conditions.
- Q: How does special steel perform in cryogenic applications?
- Special steel is renowned for its exceptional performance in cryogenic applications, characterized by extremely low temperatures that fall below -150 degrees Celsius (-238 degrees Fahrenheit). Unlike regular steel, which tends to become brittle and weaker in such conditions, special steel, also referred to as cryogenic steel or low-temperature steel, is specifically engineered to withstand these extreme cold temperatures. One of the key advantages of special steel lies in its ability to maintain its mechanical properties even at cryogenic temperatures. It retains its strength, toughness, and ductility, enabling it to endure the stresses and strains imposed on it in cryogenic environments. As a result, special steel finds application in various fields, including aerospace, energy, and healthcare, where it is used in cryogenic storage tanks, pipelines, and equipment. Another significant feature of special steel is its excellent resistance to brittle fracture at low temperatures. This is of utmost importance since brittle fractures occur when materials become excessively brittle and fail under stress. The distinct composition and processing methods employed in special steel help prevent such fractures, ensuring the integrity and safety of components within cryogenic systems. Furthermore, special steel possesses a low coefficient of thermal expansion, meaning it undergoes minimal dimensional changes when exposed to temperature fluctuations. This characteristic proves highly advantageous in cryogenic applications as it preserves the stability and reliability of equipment and structures. Additionally, special steel exhibits commendable corrosion resistance, which is vital in cryogenic environments where the presence of moisture and certain chemicals can accelerate corrosion processes. By resisting corrosion, special steel enhances the longevity and durability of components, thereby reducing maintenance and replacement costs. In conclusion, special steel is the preferred choice for cryogenic applications due to its ability to maintain mechanical properties, resist brittle fracture, display low thermal expansion, and exhibit corrosion resistance. These properties render it a dependable and efficient material for use in cryogenic systems, providing the necessary strength and durability even under extremely low-temperature conditions.
- Q: What are the different methods for improving the toughness of special steel?
- There are multiple approaches that can be utilized to enhance the toughness of special steel. Among the most effective techniques is the utilization of alloying. By incorporating specific elements like nickel, chromium, or molybdenum into the steel composition, the toughness can be greatly enhanced. These alloying elements aid in increasing the strength and resistance to cracking and fracture. Another method involves employing heat treatment processes. For instance, one can utilize quenching and tempering to improve the toughness of the steel. Quenching entails rapidly cooling the steel from a high temperature to room temperature, resulting in a hardened structure. Subsequently, tempering takes place, where the steel is reheated to a precise temperature and then slowly cooled. This process helps alleviate internal stresses and enhance the toughness of the steel. Furthermore, refining the microstructure of the steel can also amplify its toughness. Techniques like grain refinement, which encompass reducing the size of the grains in the steel, can lead to improved toughness. This is due to the fact that smaller grains hinder the propagation of cracks, making the steel more resistant to fracture. Lastly, special steel can undergo processes such as shot peening or surface hardening to augment its toughness. Shot peening involves bombarding the steel's surface with tiny metallic or ceramic particles, inducing compressive stresses and enhancing resistance to crack initiation. Surface hardening techniques like carburizing or nitriding can generate a hardened layer on the steel's surface, increasing its toughness and wear resistance. In conclusion, the various methods for enhancing the toughness of special steel encompass alloying, heat treatment processes, microstructure refinement, and surface treatments. Each of these techniques can be customized to meet the specific requirements of the steel and achieve the desired level of toughness.
- Q: How does special steel contribute to the fatigue resistance of products?
- Special steel contributes to the fatigue resistance of products by providing enhanced strength, durability, and resistance to wear and tear. The unique composition and manufacturing processes of special steel result in improved mechanical properties, such as higher tensile strength and hardness, which help products withstand repeated loading and stress cycles without failure. Additionally, special steel can be engineered to have specific microstructures that enhance its resistance to fatigue, preventing the growth of cracks and ensuring longer product lifespan.
- Q: What are the main advantages of using special steel in the food processing industry?
- The main advantages of using special steel in the food processing industry are its exceptional strength and durability, resistance to corrosion and bacteria growth, and ease of cleaning and maintenance. Special steel is highly resistant to wear and tear, ensuring longevity and reducing the need for frequent replacements. Its corrosion resistance properties prevent contamination and maintain the integrity of food products. Additionally, special steel's smooth surface and non-porous nature make it easy to clean, ensuring optimal hygiene standards in food processing facilities.
- Q: Can special steel be used in the automotive racing industry?
- Yes, special steel can be used in the automotive racing industry. Special steel alloys, such as high-strength and lightweight materials, can enhance the performance, durability, and safety of race cars. These alloys can be used in various components like engine parts, chassis, suspension systems, and roll cages to improve overall performance and reduce weight.
- Q: What are the challenges in working with special steel?
- Working with special steel can present various challenges due to its unique properties. One major challenge is its high hardness, which makes it more difficult to machine, shape, and weld compared to regular steel. Special steel also tends to have lower thermal conductivity, making it more susceptible to heat damage during cutting or grinding processes. Additionally, special steel alloys often have strict composition requirements, meaning precise control over the manufacturing process is necessary to achieve the desired material properties. Overall, the challenges in working with special steel primarily revolve around its hardness, thermal properties, and the need for precise manufacturing techniques.
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Grade AISI5152 CNBM Alloy Special Steel Round Bar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t
- Supply Capability:
- 10000 m.t/month
OKorder Service Pledge
OKorder Financial Service
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