• Alloy Steel C45/S45C/45/1045 Carbon Round Steel System 1
  • Alloy Steel C45/S45C/45/1045 Carbon Round Steel System 2
Alloy Steel C45/S45C/45/1045 Carbon Round Steel

Alloy Steel C45/S45C/45/1045 Carbon Round Steel

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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Item specifice

Type:
Alloy Steel
Shape:
Steel Round Bar
Standard:
AISI,ASTM,JIS,GB,DIN,API,EN,BS
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
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)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Net Weight:
as required
Length:
as required
Thickness:
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

Chemical Composition(GB)%

standard

C

Si

Mn

P

S

Ni

Cr

Cu

45

0.42-0.50

0.17-0.37

0.50-0.80

≤0.035

≤0.035

≤0.30

≤0.15

≤0.25

S45C

0.42-0.48

0.15-0.35

0.60-0.90

≤0.030

≤0.035

≤0.20

≤0.20

≤0.230

 

Heat Treatment

Item

Temperature ℃

Hardness

normalizing

850-870

170-217HBS

 

Characterstics

1.Commonly used in carbon quenched and tempered steels

2.Higher strength and better cutting processability

 

Applications

1.Suitable for cold stamping die wedge, screw, plate, etc

2.Other parts of cold work mould

3.Used for hot forging, die casting, hot stamping and hot mould parts

Product show

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Workshop show

Alloy Steel C45/S45C/45/1045 Carbon Round Steel

Q:How does quenching and tempering affect the hardness of special steel?
Special steel can have its hardness and mechanical properties improved through the use of heat treatment processes known as quenching and tempering. During quenching, the steel undergoes rapid cooling from a high temperature to either room temperature or below. This is typically achieved by immersing the steel in a quenching medium like oil or water. The quick cooling results in the formation of a martensitic structure, which is characterized by high hardness and brittleness. Quenching significantly enhances the hardness of the steel. However, the brittleness of the martensitic structure limits its usability in many applications. To address this issue, the steel then undergoes tempering. Tempering entails reheating the quenched steel to a temperature below the lower critical temperature, usually ranging from 200 to 600 degrees Celsius. The steel is held at this temperature for a specific period of time. This process facilitates the transformation of the brittle martensite into a more ductile structure known as tempered martensite. Tempering reduces the hardness of the steel but imparts improved toughness and ductility. The actual hardness achieved after tempering depends on the tempering temperature and time. Higher temperatures and longer times result in a greater reduction in hardness. By carefully adjusting the tempering parameters, a balance between hardness and toughness suitable for the intended application can be achieved. To summarize, quenching and tempering have a significant impact on the hardness of special steel. Quenching increases hardness by creating a martensitic structure, while tempering reduces hardness but enhances toughness and ductility. The specific hardness achieved through these processes can be controlled by adjusting the quenching and tempering parameters to meet the desired mechanical properties for the specific application.
Q:What are the key properties of special steel?
The key properties of special steel include high strength, excellent corrosion resistance, good heat resistance, and superior mechanical properties. Additionally, special steel is known for its exceptional hardness, toughness, and wear resistance, making it suitable for various applications in industries such as automotive, aerospace, and construction.
Q:What are the different methods of surface anodizing for special steel?
There are several methods of surface anodizing for special steel, including electrochemical anodizing, plasma electrolytic oxidation (PEO), and chromic acid anodizing. Each method has its own advantages and suitability for different steel types and desired outcomes. Electrochemical anodizing involves immersing the steel in an electrolyte solution and applying an electric current to form an oxide layer on the surface. PEO utilizes a high-voltage electrical discharge to create a thicker and more durable anodized layer. Chromic acid anodizing, on the other hand, utilizes a mixture of chromic acid and sulfuric acid to achieve corrosion protection and improved surface properties. The choice of method depends on the specific requirements and characteristics of the special steel being anodized.
Q:How does special steel resist corrosion?
Special steel resists corrosion through the addition of alloying elements, such as chromium, which form a protective oxide layer on its surface. This oxide layer acts as a barrier, preventing the underlying steel from coming into contact with corrosive substances and effectively inhibiting corrosion.
Q:How does special steel perform in extreme cold temperatures?
Special steel is specifically designed to perform well in extreme cold temperatures. It is made using alloys that have a low temperature ductility, meaning they can withstand and maintain their structural integrity even in extremely cold conditions. This type of steel is often used in applications such as Arctic exploration, oil and gas operations in cold environments, and in the aerospace industry. One of the key properties of special steel is its ability to resist brittleness at low temperatures. Unlike regular steel, which becomes brittle and prone to cracking in extreme cold, special steel retains its toughness, making it suitable for use in sub-zero conditions. This is achieved by carefully selecting and controlling the composition of the alloy, which allows for a better balance between strength and ductility. Furthermore, special steel has excellent corrosion resistance, which is particularly important in cold environments where exposure to snow, ice, and moisture is common. The alloying elements in special steel, such as chromium and nickel, form a protective oxide layer on the surface, preventing corrosion and maintaining the structural integrity of the steel. In addition, special steel also has good thermal conductivity, which means it can efficiently transfer heat even in extreme cold temperatures. This property is crucial in applications where heat management is essential, such as in the aerospace industry or in equipment operating in cold climates. Overall, special steel is specifically engineered to perform exceptionally well in extreme cold temperatures. Its low temperature ductility, resistance to brittleness, corrosion resistance, and thermal conductivity make it a reliable and durable material for various applications in cold environments.
Q:How does special steel contribute to the aerospace aftermarket industry?
Special steel plays a crucial role in the aerospace aftermarket industry by providing critical components that are essential for the safe and efficient operation of aircraft. The high strength, durability, and temperature resistance of special steel make it an ideal material for various aerospace applications. One of the primary ways special steel contributes to the aerospace aftermarket industry is through the production of engine components. Special steel alloys, such as nickel-based superalloys, are used to manufacture turbine blades, compressor discs, and shafts, which are vital elements of jet engines. These components must withstand extreme temperatures, pressures, and mechanical stresses, and special steel alloys offer the necessary properties to ensure reliable and long-lasting performance. Moreover, special steel is also used in the manufacturing of structural components in aircraft. Steel alloys with high strength-to-weight ratios, such as titanium alloys, are employed for the construction of critical parts like landing gear, wing spars, and fuselage frames. These components need to be both lightweight and strong to withstand the forces and stresses experienced during flight. Special steel alloys provide the required mechanical properties to ensure the structural integrity and safety of the aircraft. In addition to engine and structural components, special steel also contributes to the aerospace aftermarket industry through the production of fasteners, bearings, and other small yet vital parts. These components are responsible for holding various parts together and ensuring proper functioning of systems. Special steel alloys with excellent corrosion resistance, fatigue strength, and wear resistance are utilized to ensure the reliability and longevity of these critical components. Furthermore, special steel plays a crucial role in the maintenance, repair, and overhaul (MRO) activities of the aerospace aftermarket industry. With the rigorous demands placed on aircraft components, regular inspections, repairs, and replacements are necessary to ensure their continued airworthiness. Special steel materials are often used for MRO purposes due to their compatibility with existing aircraft systems and their ability to meet the stringent requirements of aerospace regulations. Overall, special steel is an indispensable material in the aerospace aftermarket industry. Its unique properties and characteristics enable the production of high-performance engine components, lightweight structural parts, and reliable small components. The use of special steel ensures the safety, efficiency, and longevity of aircraft, contributing to the overall success and growth of the aerospace aftermarket industry.
Q:What is the impact of manganese in special steel alloys?
Manganese plays a crucial role in special steel alloys as it enhances the strength, hardness, and overall performance of the steel. It acts as a deoxidizer, removing impurities and improving the cleanliness of the metal. Additionally, manganese helps in grain refinement, reducing the risk of brittleness and improving toughness. It also aids in improving the workability and weldability of the steel, making it easier to shape and join. Overall, manganese significantly contributes to the high-quality and durability of special steel alloys.
Q:How does special steel withstand high temperatures?
Special steel is able to withstand high temperatures due to its unique composition and manufacturing process. It is typically alloyed with elements such as chromium, nickel, and molybdenum, which enhance its heat resistance properties. These alloying elements form stable oxides on the surface of the steel, creating a protective layer that prevents oxidation and corrosion at high temperatures. Additionally, special steel undergoes heat treatment processes like quenching and tempering, which further enhance its strength and ability to retain its structural integrity under extreme heat conditions.
Q:How does the composition of special steel affect its properties?
The composition of special steel greatly affects its properties. By adjusting the amounts of elements like carbon, manganese, chromium, and nickel, the steel's hardness, strength, corrosion resistance, and heat resistance can be modified. Additionally, the presence of specific elements can also enhance other properties such as toughness, wear resistance, and machinability. Therefore, careful control of the composition allows manufacturers to tailor the steel's properties to meet specific requirements for different applications.
Q:What are the specific requirements for special steel used in the defense armor industry?
The specific requirements for special steel used in the defense armor industry include high strength and hardness, excellent toughness, resistance to ballistic impact and penetration, durability, corrosion resistance, and the ability to be fabricated into complex shapes. Additionally, the steel must meet strict quality control standards and be able to withstand extreme conditions such as high temperatures and harsh environments.

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