• Grade AISI5152 CNBM Alloy Special Steel Round Bar System 1
  • Grade AISI5152 CNBM Alloy Special Steel Round Bar System 2
  • Grade AISI5152 CNBM Alloy Special Steel Round Bar System 3
  • Grade AISI5152 CNBM Alloy Special Steel Round Bar System 4
  • Grade AISI5152 CNBM Alloy Special Steel Round Bar System 5
Grade AISI5152 CNBM Alloy Special Steel Round Bar

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

Type:
Alloy Steel
Shape:
Steel Round Bar

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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ASTM 5120 /5140 / 4140/ 4135/ 5152/52100…

JIS SCr420H/ SCr440/ SCM3/ SUP9/SUJ2…

 

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GB 20/ 35 /45/…

ASTM 1020/ 1030/1045…

JIS S20C/ S30C / S45C…

 

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.

Grade AISI5152 CNBM Alloy Special Steel Round Bar

Grade AISI5152 CNBM Alloy Special Steel Round Bar

Q: What are the different heat treatment processes used for special steel?
There are several heat treatment processes commonly used for special steel, including annealing, normalizing, quenching, tempering, and case hardening. Annealing involves heating the steel to a specific temperature and then slowly cooling it, which helps to improve its ductility and relieve internal stresses. Normalizing is similar to annealing but involves air cooling the steel after heating, resulting in a more uniform grain structure. Quenching is a process where the steel is rapidly cooled in a liquid medium, such as water or oil, to achieve high hardness and strength. Tempering follows quenching and involves reheating the steel to a lower temperature, reducing its hardness and increasing toughness. Case hardening is a surface hardening process where the steel is heated in the presence of a carbon-rich material, creating a hardened outer layer while maintaining a softer core. These heat treatment processes are used to enhance the mechanical properties and performance of special steel for various applications.
Q: What are the different power generation grades of special steel?
Within the power generation industry, there are numerous grades of special steel used for different applications. These grades are specifically engineered to withstand the extreme conditions encountered in power plants, including high temperatures, pressures, and corrosive environments. One widely used grade is 9Cr-1Mo-V steel, also referred to as Grade 91. This high-strength, low-alloy steel is commonly employed in the construction of boiler components such as headers, tubes, and turbine rotors. Grade 91 steel offers exceptional creep strength, oxidation resistance, and thermal stability, making it well-suited for operations at elevated temperatures. Another commonly utilized grade in power generation is 12Cr-1Mo-V steel, also known as Grade 11. It finds primary application in the fabrication of superheater and reheater tubes for power boilers. Grade 11 steel exhibits good strength at high temperatures, corrosion resistance, and weldability, which makes it an ideal choice for these specific purposes. Furthermore, the power generation industry often employs a grade called 2.25Cr-1Mo steel, or Grade 22, in the construction of pressure vessels and piping systems within power plants. This grade is highly regarded for its outstanding resistance to creep, high-temperature strength, and ability to withstand hydrogen attack. It is therefore deemed suitable for critical components within power generation facilities. Moreover, there exist other specialized grades such as 5Cr-0.5Mo steel, or Grade 5, and 9Cr-0.5Mo steel, or Grade 9, which find application in specific power generation scenarios involving elevated temperatures and pressures. These grades offer a combination of strength, corrosion resistance, and thermal stability, ensuring dependable performance in demanding environments. In conclusion, the power generation industry relies on a variety of special steel grades that are specifically tailored to meet the unique requirements of power plants. These grades possess crucial properties such as high-temperature strength, corrosion resistance, and more, which are essential for efficient and reliable power generation operations.
Q: How does special steel perform in chemical resistance applications?
Special steel is renowned for its exceptional performance in applications requiring resistance to chemicals. Its unique composition and properties render it highly impervious to corrosion and damage resulting from exposure to various chemical substances. Special steel is crafted using alloys that incorporate elements such as chromium, nickel, and molybdenum, which confer outstanding resistance to acids, alkalis, and other corrosive agents. In the realm of chemical resistance applications, special steel offers multiple advantages. Firstly, it exhibits remarkable resistance to pitting corrosion, a form of localized corrosion that manifests on metal surfaces. This characteristic renders it suitable for usage in environments where chemicals may inflict harm upon the metal surface. Secondly, special steel displays excellent resistance to crevice corrosion, which arises within confined spaces or gaps between metal surfaces. This property proves particularly advantageous in chemical processing equipment, where tight joints and connections are prevalent. Moreover, special steel retains its mechanical strength and integrity even in the harshest chemical environments. It can withstand high temperatures, pressure, and exposure to aggressive chemicals without compromising its structural robustness. This renders it exceedingly reliable and durable, ensuring an extended service life and reduced maintenance costs. All in all, the extraordinary chemical resistance properties of special steel make it the preferred choice for a wide array of applications. Whether employed in chemical processing plants, pharmaceutical industries, or oil and gas refineries, special steel offers the necessary safeguard against corrosion and chemical-induced damage. Its ability to endure harsh environments while maintaining optimal performance over time renders it an ideal material for chemical resistance applications.
Q: How does special steel contribute to the automotive racing aftermarket industry?
The automotive racing aftermarket industry relies heavily on special steel, which provides the necessary strength, durability, and performance for high-performance racing vehicles. In this industry, where speed, precision, and safety are of utmost importance, special steel offers exceptional properties that enable engineers and manufacturers to push performance limits. One significant contribution of special steel to the automotive racing aftermarket industry is its ability to endure extreme conditions. Racing vehicles face intense heat, pressure, and vibrations during high-speed races, which can place immense stress on various components. Special steel, with its outstanding heat resistance and high tensile strength, ensures that critical parts like engine components, transmission gears, and suspension systems can withstand these harsh conditions while maintaining optimal performance and safety. Furthermore, special steel's lightweight nature makes it an ideal material for racing vehicle components. Reducing weight is crucial in racing as it directly affects acceleration, handling, and overall performance. By utilizing special steel, manufacturers can create lighter yet stronger components, allowing racing teams to achieve higher speeds, improved maneuverability, and enhanced fuel efficiency. Special steel also contributes to the automotive racing aftermarket industry through its excellent machinability and weldability. This enables precise customization and modification of components according to the specific needs and preferences of racing teams. Whether it involves creating custom engine blocks, exhaust systems, or chassis reinforcements, special steel provides the necessary flexibility to optimize performance and gain a competitive edge. Moreover, the use of special steel in the automotive racing aftermarket industry promotes innovation and technological advancements. Steel manufacturers continuously develop new alloys and compositions that enhance the performance capabilities of racing vehicles. These advancements can include improved corrosion resistance, enhanced fatigue strength, and superior material properties, all of which contribute to the overall performance and longevity of racing vehicle components. In conclusion, special steel plays a vital role in the automotive racing aftermarket industry. Its unique combination of strength, durability, lightweight properties, and machinability allows racing teams to design and manufacture high-performance vehicles capable of withstanding extreme conditions. By leveraging the advantages of special steel, the industry can continue pushing the boundaries of automotive racing, delivering faster, safer, and more efficient racing machines.
Q: How does special steel perform in medical applications?
Special steel, also known as stainless steel, has proven to be a highly versatile and reliable material for various medical applications. Its unique properties make it an ideal choice for medical instruments, devices, and equipment. First and foremost, special steel is highly resistant to corrosion, which is crucial in medical settings where sterilization and frequent exposure to moisture are common. This resistance to corrosion ensures that the steel remains durable and does not degrade over time, making it suitable for long-term use. Additionally, special steel is biocompatible, meaning it does not cause any adverse reactions when in contact with living tissues or bodily fluids. This biocompatibility is essential for medical implants such as prosthetics, orthopedic screws, and dental implants, as it minimizes the risk of rejection or infection. Moreover, special steel offers excellent strength and hardness, allowing it to withstand the demanding conditions of medical procedures. It can maintain its structural integrity even under extreme temperatures or high-pressure environments, making it suitable for surgical instruments and cutting tools. Its hardness also enables sharp and precise cutting edges, ensuring accurate and effective surgical procedures. Furthermore, special steel is easy to clean and sterilize due to its smooth surface finish. This is crucial in medical applications where maintaining a sterile environment is of utmost importance to prevent the spread of infections. The smooth surface also prevents the accumulation of bacteria or other contaminants, reducing the risk of contamination. In conclusion, special steel has proven to be a highly reliable and versatile material for medical applications. Its corrosion resistance, biocompatibility, strength, and ease of sterilization make it ideal for medical instruments, devices, and implants. The exceptional performance of special steel in medical applications contributes to improving patient care, ensuring safety, and enhancing the overall effectiveness of medical procedures.
Q: Can special steel be used for making defense industry components?
Indeed, the utilization of special steel in the production of defense industry components is possible. Special steel pertains to a classification of steel that has been deliberately designed and engineered to possess superior attributes and qualities when compared to standard steel grades. These attributes comprise high strength, exceptional toughness, resistance to corrosion, heat resistance, and wear resistance. Within defense industries, the materials utilized for components like armor plates, military vehicles, weapons systems, aircraft structures, and naval vessels must be able to endure extreme conditions while delivering optimal performance. Special steel, with its extraordinary attributes, fulfills these requirements and is frequently employed in the manufacturing of defense industry components. For instance, armor plates employed in military vehicles and personal body armor are commonly constructed from special steel alloys that can withstand ballistic impacts and safeguard personnel. Similarly, aircraft structures and naval vessels necessitate steel that can endure high stresses, corrosion caused by saltwater, and extreme temperatures, all of which can be accomplished through the use of special steel. Furthermore, the ease with which special steel can be machined, welded, and fabricated also contributes to its application in the production of defense industry components. This facilitates efficient production and assembly of intricate defense equipment. Overall, special steel is an essential material within the defense industry as it presents exceptional strength, durability, and performance attributes, rendering it an ideal selection for the production of defense components that must withstand rigorous and demanding conditions.
Q: How are aluminum alloys used in the automotive industry?
Aluminum alloys are extensively used in the automotive industry due to their lightweight, high strength, and corrosion-resistant properties. These alloys are commonly utilized in the manufacturing of various components, such as engine blocks, cylinder heads, wheels, and body panels. By incorporating aluminum alloys, vehicles can achieve improved fuel efficiency, better performance, and enhanced safety while reducing overall weight and emissions.
Q: What are the properties of silicon steel?
Silicon steel, also known as electrical steel or transformer steel, has several important properties. It is characterized by low core loss and high magnetic permeability, making it highly efficient in electrical applications. Silicon steel is also known for its ability to generate minimal heat during operation, which is crucial for transformers and other electrical devices. Additionally, it exhibits excellent magnetic properties, such as high saturation flux density and low coercive force, allowing for efficient energy transfer and minimizing energy losses.
Q: Can special steel be used in the pharmaceutical manufacturing industry?
No, special steel is not typically used in the pharmaceutical manufacturing industry. The industry requires specific materials, such as stainless steel, that meet strict regulatory requirements for cleanliness, corrosion resistance, and compatibility with pharmaceutical products.
Q: What are the specific requirements for special steel used in the railway track industry?
The specific requirements for special steel used in the railway track industry are designed to ensure the safety, durability, and efficiency of the tracks. Firstly, the steel used for railway tracks must have a high tensile strength to withstand the heavy loads and constant stress applied by trains. This strength allows the tracks to maintain their shape and prevent deformation, ensuring smooth and stable movement of the trains. Secondly, the special steel used in railway tracks must have excellent wear resistance. As trains constantly traverse the tracks, there is significant friction and wear between the train wheels and the tracks. Therefore, the steel needs to be able to withstand this wear and tear, minimizing the need for frequent maintenance and replacement. Thirdly, the steel used in railway tracks must have good fatigue resistance. Trains exert repetitive loads on the tracks, which can lead to fatigue failure if the steel is not able to withstand this cyclic loading. Fatigue resistance ensures that the tracks remain intact and safe for prolonged periods, reducing the risk of accidents. Furthermore, the steel must have high corrosion resistance to withstand exposure to various environmental and weather conditions. Railway tracks are exposed to moisture, temperature variations, and other corrosive elements, making it crucial for the steel to have the ability to resist rust and corrosion. In addition to these mechanical and physical properties, the steel used in the railway track industry must also meet specific dimensional and geometric requirements. This includes precise dimensions, straightness, and alignment to ensure proper installation and alignment of the tracks, allowing for smooth and safe train operations. Overall, the specific requirements for special steel used in the railway track industry revolve around strength, wear resistance, fatigue resistance, corrosion resistance, and dimensional accuracy. Meeting these requirements is essential to ensure the safety, longevity, and efficiency of railway tracks, facilitating smooth and reliable train transportation.

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