• Cold Drawn AISI 1045 Carbon Steel Round Bars System 1
  • Cold Drawn AISI 1045 Carbon Steel Round Bars System 2
  • Cold Drawn AISI 1045 Carbon Steel Round Bars System 3
  • Cold Drawn AISI 1045 Carbon Steel Round Bars System 4
Cold Drawn AISI 1045 Carbon Steel Round Bars

Cold Drawn AISI 1045 Carbon Steel Round Bars

Ref Price:
$300.00 - 500.00 / m.t. get latest price
Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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Carbon Steel
Steel Round Bar
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
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)
Net Weight:
as required
as required
as required

The details of our Steel

1. Produce Standard: as the GB, AISI, ASTM, SAE, EN, BS, DIN, JIS Industry Standard


2. Produce processes: Smelt Iron -EAF smelt Billet  - ESR smelt Billet -Hot rolled or forged get the  steel round bar and  plate


3. Heat treatment:

Normalized / Annealed / Quenched+Tempered


4. Quality assurance:

All order we can received  Third party inspection, You can let SGS, BV,.. and others test company test and inspect our products before Goods shipping.

Product information




 carbon:0.43-0.50    Silicon:0.10-0.35   Manganese: 0.60-0.90

2.Equivalent Grades

 SAE1045,AISI C1045,S45C,C45


1)1045 carbon Steel round bars, flat/square bars,plates,sheets.

2)AISI 1045 carbon steel Size Available(Length can be customized)

4.Round bar

16mm-690mm Dia

5. Typical Mechanical Properties 

Tensile strength Mpa:640   Yield strength Mpa:410      Elongation in 50% mm %:22      Impact lzod J:170-210   Hardness:HB 187 / HRC 10


  AISI 1045 steel has good machinability in normalized as well as the hot rolled condition. Based on the recommendations given by the machine manufacturers, operations like tapping, milling, broaching, drilling, turning and sawing etc. can be carried out on AISI 1045 steel using suitable feeds, tool type and speeds.


AISI 1045 steel is readily welded when correct procedure is followed.

Welding AISI 1045 steel in through-hardened, tempered and flame or induction hardened condition is not recommended.

Low hydrogen electrodes are preferred for welding AISI 1045 steel.

The workpiece is

Pre-heated at 200°C–300°C (392°F - 572°F)

Maintained at the same temperature during welding

Cooled slowly using sand, ashes etc and

Stress relieved at 550°C - 660°C (1022°F - 1220°F).

8.Related Specifications

W.Nr 1.0503 C45   W.Nr 1.1191 CK45   AISI C1045   ASTM A29/A29M-91 1045    SAE 1045     UNS G 10450


Annealing:Heat to 800°C-850°C hold until temperature is uniform throughout the section,and cool in furnace.

Hardening:Heat to 800°C-850°C hold until temperature is uniform throughout the section,soak for 10-15 minutes per 25mm of section,and quench in water or brine.or Heat to 830°C -860°C soak as above and quench in oil.Temper immediately while still hand warm.

Tempering:Re heat to 400°C-650°C as required,hold until temperature is uniform throughout the section,soak for 1 hour per 25mm of section,and cool in still air.   

10.Quality Certificate

1)Grade,Size,Quantity in Number & Weight
2)Heat Number
3)Chemical Composition
5)Ultrasonic Test Report.

Product show


Workshop show

Cold Drawn AISI 1045 Carbon Steel Round Bars

Q:What are the different surface hardening techniques for special steel?
To enhance the mechanical properties and improve the wear resistance of special steel, there exists a range of surface hardening techniques that can be employed. These techniques encompass: 1. Case hardening: Through diffusion, carbon or nitrogen is introduced into the steel surface. By subjecting the steel to an environment rich in carbon or nitrogen, the atoms disseminate into the surface layer, resulting in the creation of a hardened case while maintaining a resilient core. 2. Nitriding: The process of introducing nitrogen into the steel surface to enhance its hardness is known as nitriding. By placing the steel in an environment abundant in nitrogen at elevated temperatures, a hardened surface layer is formed, exhibiting improved resistance to wear and corrosion. 3. Carburizing: Carbon is introduced into the steel surface through carburizing. By heating the steel in an environment rich in carbon, the carbon atoms diffuse into the surface layer, leading to the development of a hardened case with heightened hardness and wear resistance. 4. Induction hardening: Utilizing an induction coil, induction hardening is a localized technique for surface hardening. The steel is heated using the induction coil and then swiftly quenched, resulting in a hardened surface layer characterized by high hardness and enhanced wear resistance. 5. Flame hardening: Flame hardening is an alternative localized method for surface hardening. The steel surface is heated using a high-temperature flame and swiftly quenched. This technique generates a hardened surface layer with increased hardness and resistance to wear. 6. Laser hardening: Laser hardening is a precise and localized surface hardening technique. By employing a laser beam to heat the desired area of the steel, followed by rapid quenching, a hardened surface layer with enhanced mechanical properties is formed. By employing these surface hardening techniques, special steel can experience significant improvements in durability, strength, and resistance to wear and corrosion, making it highly suitable for diverse industrial applications. The selection of the most suitable technique is contingent upon factors such as the desired level of hardness, the complexity of the steel component, and the specific requirements of the application.
Q:How does tungsten contribute to the properties of special steel?
Special steel greatly benefits from the inclusion of tungsten, which is a critical element that significantly impacts its properties. One of the key advantages of incorporating tungsten into steel lies in its ability to enhance strength and hardness. This is achieved through the formation of a solid solution with iron, resulting in a microstructure with fine grains that effectively increase overall toughness and wear resistance. Furthermore, tungsten plays a pivotal role in improving the high-temperature strength of special steel. Due to its high melting point, tungsten maintains its strength even under elevated temperatures, making it an ideal choice for applications that require resistance to heat and thermal stress. Consequently, special steel containing tungsten can be employed in environments with extreme temperatures, such as gas turbines, rocket nozzles, and cutting tools. Another crucial contribution of tungsten lies in enhancing the corrosion resistance of special steel. By forming stable carbides, tungsten provides a protective barrier against corrosion and erosion, effectively enhancing the durability and longevity of the steel. This is particularly invaluable in industries where the steel is exposed to corrosive environments, such as chemical processing, marine applications, and oil and gas exploration. Moreover, tungsten significantly aids in the machinability of special steel. It assists in reducing the occurrence of built-up edges during cutting operations, resulting in improved surface finish and prolonged tool life. This characteristic proves highly advantageous in industries that require precision machining, such as automotive, aerospace, and tool manufacturing. In conclusion, the presence of tungsten in special steel is of utmost importance as it enhances strength, hardness, high-temperature performance, corrosion resistance, and machinability. Its unique properties make it an indispensable component in the production of high-quality steel utilized across various industries.
Q:What are the specific requirements for special steel used in the defense sector?
The specific requirements for special steel used in the defense sector vary depending on the specific applications and needs. However, some common requirements include high strength and toughness, corrosion resistance, heat resistance, and compatibility with various manufacturing processes. Additionally, special steel used in the defense sector may need to meet specific standards and certifications for quality control, such as MIL-SPEC or NATO specifications.
Q:Can special steel be used in the manufacturing of tools?
Yes, special steel can be used in the manufacturing of tools. Special steel, also known as alloy steel, is specifically designed to have enhanced properties such as high strength, hardness, and resistance to wear and corrosion. These characteristics make it an ideal material for the production of durable and high-performance tools used in various industries, including automotive, construction, and machinery.
Q:What are the different surface finishes available for special steel?
There are several different surface finishes available for special steel, including polished, brushed, satin, and matte finishes. Each finish offers a unique appearance and texture, allowing for customization and versatility in various applications. Additionally, special coatings such as powder coating or electroplating can be applied to enhance the surface finish and provide additional protection against corrosion or wear.
Q:Can special steel be used in the pharmaceutical manufacturing equipment manufacturing industry?
Yes, special steel can be used in the pharmaceutical manufacturing equipment manufacturing industry. Special steel offers several advantages such as resistance to corrosion, high strength, and durability, making it suitable for various applications in pharmaceutical manufacturing equipment. It ensures the hygienic and safe production of pharmaceutical products, meeting the industry's specific requirements and regulations. Additionally, special steel's ability to withstand extreme temperatures and harsh chemicals makes it a valuable material for manufacturing equipment used in pharmaceutical processes.
Q:How does special steel withstand extreme temperatures?
Special steel is able to withstand extreme temperatures due to its unique composition and production process. One key factor is the addition of alloying elements such as chromium, molybdenum, and nickel, which enhance the steel's heat resistance. These elements form stable oxides on the surface of the steel, creating a protective barrier against oxidation and corrosion at high temperatures. Furthermore, special steel undergoes specialized heat treatment methods like quenching and tempering, which refine its microstructure and improve its mechanical properties. This process enhances the steel's ability to maintain its strength and hardness even when exposed to extreme temperatures. Additionally, the manufacturing process of special steel involves precision and control over the cooling rate during its production. This controlled cooling prevents the formation of brittle phases, ensuring that the steel retains its toughness and ductility at both high and low temperatures. Moreover, the grain size of special steel is carefully controlled through techniques like grain refinement, which leads to a more homogeneous and fine-grained microstructure. This fine-grained structure enhances the steel's resistance to thermal fatigue and creep, allowing it to withstand prolonged exposure to extreme temperatures without significant degradation. Overall, the combination of alloying elements, specialized heat treatment processes, controlled cooling, and refined microstructure makes special steel highly capable of withstanding extreme temperatures while maintaining its structural integrity and mechanical properties.
Q:Can special steel be used in the medical industry?
Yes, special steel can be used in the medical industry. Special steel, specifically stainless steel, is commonly used in the manufacturing of medical devices and equipment due to its corrosion resistance, biocompatibility, and sterilization capabilities. It is used for surgical instruments, implants, prosthetics, and various other medical applications where durability, hygiene, and non-reactivity are essential.
Q:How does special steel perform in abrasive wear applications?
Special steel is known for its excellent performance in abrasive wear applications. It is specifically designed to withstand the harsh conditions and high levels of abrasion that occur in various industrial processes. One of the key features of special steel is its exceptional hardness. It is able to resist the abrasive forces exerted by different materials, such as rocks, sand, or minerals, without experiencing significant wear or deterioration. This hardness is achieved through a combination of alloying elements and heat treatment processes, which enhance the steel's ability to retain its structural integrity even under extreme wear conditions. Additionally, special steel often possesses a high level of toughness, which allows it to absorb impact and resist fracture or chipping. This property is particularly important in abrasive wear applications, where materials constantly collide and generate high levels of stress. The toughness of special steel enables it to withstand these impacts and maintain its performance over a long period of time. Furthermore, special steel can exhibit excellent resistance to corrosion, which is crucial in abrasive wear applications that involve exposure to moisture, chemicals, or other corrosive agents. This resistance ensures that the steel does not deteriorate or lose its effectiveness due to chemical reactions or oxidation, extending its lifespan and reducing maintenance requirements. In summary, special steel performs exceptionally well in abrasive wear applications due to its hardness, toughness, and corrosion resistance. These properties enable it to withstand the harsh conditions and high levels of abrasion encountered in various industrial processes, ensuring long-lasting performance and reduced downtime.
Q:What are the different heat treatment furnaces used for special steel?
There are several different heat treatment furnaces that are commonly used for special steel. These furnaces serve specific purposes and are designed to provide the required heating and cooling conditions for the steel to achieve the desired properties. One type of heat treatment furnace used for special steel is the annealing furnace. Annealing is a process that involves heating the steel to a specific temperature and then slowly cooling it to make it softer and more ductile. Annealing furnaces often have controlled atmospheres to prevent oxidation of the steel during the process. Another type of furnace used for special steel is the quenching furnace. Quenching is a process that involves rapidly cooling the steel to increase its hardness. Quenching furnaces are designed to provide the necessary cooling rate and often use specialized cooling mediums such as oil or water to achieve the desired results. Tempering furnaces are also commonly used for special steel. Tempering is a process that involves heating the steel to a specific temperature and then cooling it to improve its toughness and reduce brittleness. Tempering furnaces allow for precise temperature control during the process. In addition to these, there are also carburizing furnaces used for special steel. Carburizing is a process that involves introducing carbon into the steel's surface to increase its hardness. Carburizing furnaces have controlled atmospheres and are designed to provide the necessary temperatures and carbon-rich environments for the process. Overall, the different heat treatment furnaces used for special steel serve specific purposes such as annealing, quenching, tempering, or carburizing. These furnaces are designed to provide the required heating and cooling conditions to achieve the desired properties in the steel.

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