SAE 1020 Round Steel Bars Special Steel System 1

SAE 1020 Round Steel Bars Special Steel

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Products description details

1. Chemical Composition (%)

C	Si	Mn	Cr	Ni	Cu	P	S
0.17-0.23	0.17-0.37	0.35-0.65	≤0.25	≤0.30	≤0.25	≤0.035	≤0.035

2. Mechanical Properties

Tensile strength	Yield strength	Elongation rate	Contractibility rate	Hardness(HB)
≥410MPa	≥245MPa	≥25%	≥55%	≤156(without heat treatment)

3. Standard

GB:20, AISI: 1020, JIS: S20C

4. Specification

Dia: 8mm-480mm or according to your requirements

Length: 1m-12mm or according to your requirements

5. Delivery Condition

Hot rolled, forged, QT heat treatment and normalizing

6. Payment term

T/T, L/C or we can negotiate.

7. Delivery time

20days after the order confirmed

8. Characteristics

1) The strength and hardness of S20C/ 1020/ 20 is higher than that of S15C/ 1015/ 15.

2) Good plasticity and weldability.

3) Good toughness after hot rolling and normalization.

9. Application

High-quality carbon structural steel/S20C/ 1020/ 20

S20C structural carbon steel bar /1020 /20 can be used to be manufactured medium or small carburization or nitrocarburizing parts and press forging parts, such as lever shaft, selector fork of speed changing box, gear, heavy mechanical lever and shackle, etc.

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SAE 1020 Round Steel Bars Special Steel

Why choose us?

(1) The leading exporter in China special steel industry.

(2) Large stocks for various sizes, fast delivery date.

(3) Good business relationship with China famous factories.

(4) More than 7 years steel exporting experience.

(5) Good after-sales service guarantee.

Q:Is special steel suitable for structural applications?: Yes, special steel is well-suited for structural applications. This type of steel is engineered to possess specific properties and characteristics that meet the demands of various applications. Industries such as construction, automotive, aerospace, and oil and gas often rely on special steel. The outstanding strength, durability, and resistance to corrosion of special steel make it an ideal material for structural applications. It can withstand heavy loads, high temperatures, and extreme weather conditions, ensuring the safety and longevity of structures. Furthermore, special steel offers excellent weldability, machinability, and formability, allowing for flexibility in design and construction. It can be easily shaped, fabricated, and assembled into various structural components, making it suitable for complex and unique projects. Moreover, special steel comes in a wide range of grades and types, each tailored to meet specific structural requirements. These include carbon steel, alloy steel, stainless steel, and tool steel, among others. This versatility enables engineers and designers to select the most suitable type of special steel for their specific application, ensuring optimal performance and cost-effectiveness. In conclusion, special steel is highly suitable for structural applications due to its exceptional strength, durability, resistance to corrosion, and design flexibility. The wide range of grades and types available allows engineers and designers to choose the most appropriate material for their specific project requirements.

Q:How does special steel contribute to the renewable energy storage?: Special steel plays a crucial role in renewable energy storage by enabling the production of high-performance components for energy storage systems. It is used in the manufacturing of batteries, such as lithium-ion batteries, which are widely utilized in renewable energy storage applications. Special steel provides the necessary strength, durability, and resistance to corrosion, ensuring the longevity and efficiency of these batteries. Additionally, special steel is essential for the construction of renewable energy infrastructure, including wind turbines and solar panel frames, which require sturdy and reliable materials to withstand harsh environmental conditions. Therefore, special steel contributes significantly to the development and advancement of renewable energy storage solutions.

Q:What are the main characteristics of heat-resistant steel forgings?: Heat-resistant steel forgings have several main characteristics that make them suitable for high-temperature applications. Firstly, they have excellent resistance to oxidation and corrosion, which allows them to maintain their mechanical properties even at elevated temperatures. This resistance is achieved through the addition of alloying elements such as chromium, nickel, and molybdenum, which form a protective oxide layer on the surface of the steel. Secondly, heat-resistant steel forgings exhibit high strength and toughness at high temperatures. This is crucial in applications where the material is subjected to mechanical stress and thermal cycling, such as in gas turbines, power plants, and aerospace engines. The combination of high strength and toughness ensures that the forgings can withstand the harsh operating conditions without deformation or failure. Another important characteristic of heat-resistant steel forgings is their ability to retain their hardness and dimensional stability even after prolonged exposure to high temperatures. This is achieved through a combination of careful alloying and heat treatment processes, which optimize the microstructure of the steel. The resulting material has a fine grain structure and a high degree of uniformity, which enhances its resistance to thermal fatigue and creep. Furthermore, heat-resistant steel forgings have good thermal conductivity, which allows for efficient heat transfer and dissipation. This is particularly important in applications where heat is generated and needs to be managed effectively to prevent overheating and damage to surrounding components. Lastly, heat-resistant steel forgings can be easily machined and fabricated into complex shapes, making them versatile and suitable for a wide range of applications. They can be forged, machined, and welded without any significant loss in their mechanical properties, making them ideal for manufacturing components with intricate designs and high precision requirements. In conclusion, the main characteristics of heat-resistant steel forgings include excellent resistance to oxidation and corrosion, high strength and toughness at high temperatures, dimensional stability and hardness retention, good thermal conductivity, and ease of machining and fabrication. These characteristics make heat-resistant steel forgings essential in industries that require reliable and durable materials in extreme heat conditions.

Q:How does special steel contribute to the manufacturing of medical implants?: Special steel plays a vital role in the manufacturing of medical implants by offering superior strength, corrosion resistance, and biocompatibility. These properties are crucial for ensuring the longevity and functionality of implants, allowing them to withstand the harsh conditions within the human body. Additionally, special steel can be shaped and machined into complex forms, enabling the production of intricate and customized implants to meet the specific needs of patients. Overall, special steel is essential for producing high-quality and reliable medical implants that enhance patient outcomes and improve their quality of life.

Q:What are the specific requirements for special steel used in the nuclear waste storage industry?: The specific requirements for special steel used in the nuclear waste storage industry include high corrosion resistance to withstand the harsh and corrosive environment of nuclear waste, excellent mechanical properties to maintain structural integrity over long periods of time, low susceptibility to radiation-induced embrittlement, and the ability to retain its properties even at elevated temperatures. Additionally, the steel must meet stringent standards for radiation shielding and must be able to prevent the release of radioactive materials into the environment.

Q:What are the different marine grades of special steel?: Marine environments pose severe challenges, necessitating the use of specialized steel grades. These grades are classified based on their corrosion resistance and mechanical properties. 316 stainless steel is a widely employed marine grade. It contains higher proportions of molybdenum and nickel, enhancing its resistance to corrosion from saltwater and other harsh chemicals. This grade finds utility in marine hardware, including bolts, nuts, and screws, as well as marine structures and equipment. 2205 duplex stainless steel is another marine grade that surpasses 316 stainless steel in terms of strength and corrosion resistance. It is preferred for marine applications requiring durability and high strength, such as propeller shafts, offshore structures, and pressure vessels. 5083 aluminum-magnesium alloy is commonly employed in marine applications where weight is a concern. This special steel grade offers exceptional corrosion resistance and strength, making it suitable for boat hulls, superstructures, and lightweight marine components. Moreover, a range of high-strength low-alloy (HSLA) steels are utilized in marine applications. These steels are specifically engineered to deliver superior strength, toughness, and corrosion resistance. They find widespread use in shipbuilding, offshore drilling rigs, and other marine structures that demand durability and strength. In conclusion, the diverse marine grades of special steel present a wide array of options for various marine applications. The selection of a particular grade depends on project-specific requirements, including corrosion resistance, strength, and weight considerations.

Q:What are the main factors affecting the hardness of special steel?: There are several main factors that influence the hardness of special steel. 1. Carbon content: One of the key factors is the carbon content in the steel. Carbon is a hardening element that increases the strength and hardness of the steel. Higher carbon content typically results in higher hardness. 2. Alloying elements: The presence of alloying elements such as chromium, manganese, nickel, and tungsten also affects the hardness of special steel. These elements form various compounds and solid solutions, which can enhance the hardness and strength of the steel. 3. Heat treatment: The heat treatment process, which involves heating and cooling the steel, significantly impacts its hardness. Quenching, a rapid cooling process, can increase the hardness by transforming the steel's microstructure. Tempering, on the other hand, can reduce hardness while improving toughness. 4. Crystal structure: The crystal structure of the steel can influence its hardness. For example, martensite, a hard and brittle structure formed during quenching, provides high hardness. Other crystal structures like ferrite or pearlite may have lower hardness. 5. Grain size: The size of the grains in the steel's microstructure can affect its hardness. Smaller grain sizes generally result in higher hardness due to improved strength and reduced dislocation movement within the material. 6. Work hardening: The process of plastic deformation, such as rolling or forging, can increase the hardness of steel. This work hardening occurs as dislocations in the crystal lattice get trapped and hinder further dislocation movement, resulting in increased hardness. 7. Impurities and inclusions: The presence of impurities or non-metallic inclusions in the steel can affect its hardness. These impurities can act as stress concentrators and reduce the hardness of the material. It is important to consider these factors and carefully control them during the manufacturing process of special steel to achieve the desired hardness for specific applications.

Q:How does special steel perform in hot forging processes?: Special steel performs exceptionally well in hot forging processes due to its high temperature resistance and excellent strength retention at elevated temperatures. It can withstand the extreme heat generated during forging, preventing deformation or cracking. Moreover, special steel exhibits superior wear resistance, facilitating the production of intricate and complex shapes without compromising its durability. Its exceptional performance in hot forging processes makes it a preferred choice for manufacturing industries.

Q:How does special steel contribute to sustainable development?: Special steel contributes to sustainable development in several ways. Firstly, it is a highly durable and long-lasting material, which means that products made from special steel have a longer lifespan, reducing the need for frequent replacements and reducing waste. Additionally, special steel is often used in the construction of energy-efficient buildings and infrastructure, contributing to the reduction of energy consumption and greenhouse gas emissions. Furthermore, special steel is recyclable, allowing for the recovery and reuse of materials, reducing the demand for virgin resources and minimizing the environmental impact of steel production. Overall, the use of special steel promotes resource efficiency, environmental conservation, and economic growth, making it an important component of sustainable development.

Q:Can special steel be used in the defense equipment manufacturing industry?: Yes, special steel can be used in the defense equipment manufacturing industry. Special steel, with its enhanced properties such as high strength, durability, and resistance to wear and corrosion, is often required for the manufacturing of critical components in defense equipment. It is commonly used in the production of military vehicles, aircraft, missiles, and various weapon systems. The unique characteristics of special steel make it suitable for withstanding extreme conditions and providing optimal performance in defense applications.

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