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: How does free-cutting steel improve machinability?: Free-cutting steel improves machinability by having a higher sulfur content, which acts as a lubricant during the machining process. This reduces friction and heat generation, leading to improved chip formation and easier cutting, resulting in higher cutting speeds, improved surface finish, and extended tool life.

Q: What are the common challenges in heat treating titanium alloys?: Some common challenges in heat treating titanium alloys include the high reactivity of titanium with oxygen and other elements, the need for precise temperature control due to the narrow range of heat treatments, and the potential for distortion or warping of the material during the heat treatment process.

Q: How is wear-resistant tool steel used in the production of cutting tools?: Wear-resistant tool steel is commonly used in the production of cutting tools due to its high hardness and resistance to wear. This steel is able to withstand the abrasive forces and high temperatures generated during cutting operations, resulting in longer tool life and improved cutting performance. The wear-resistant tool steel is typically used to manufacture various cutting tools such as drills, milling cutters, saw blades, and lathe tools, ensuring durability and efficiency in metalworking and machining processes.

Q: What is the role of special steel in the manufacturing of precision instruments?: Special steel plays a crucial role in the manufacturing of precision instruments as it provides the necessary strength, durability, and resistance to corrosion required for these delicate instruments to perform accurately and reliably. The unique properties of special steel enable precision instruments to withstand extreme conditions, maintain dimensional stability, and ensure high precision measurements, making it an essential material in their production.

Q: What are the requirements for special steel used in food processing equipment?: The requirements for special steel used in food processing equipment include high corrosion resistance to prevent contamination, excellent hygiene and cleanability properties, high strength and durability to withstand heavy usage, and compliance with food safety regulations and standards.

Q: What are the different methods of preventing galvanic corrosion in special steel?: There are several methods available to prevent galvanic corrosion in special steel: 1. Coating: Applying a protective coating to the surface of the steel can prevent direct contact between the steel and the corrosive environment. This can be done using various types of coatings such as paints, epoxy, or polyurethane. The coating acts as a barrier and prevents the formation of galvanic cells. 2. Cathodic protection: This method involves making the steel the cathode in a galvanic cell, which prevents corrosion. This can be achieved through two techniques: sacrificial anode cathodic protection and impressed current cathodic protection. Sacrificial anode cathodic protection involves connecting a more reactive metal, such as zinc or magnesium, to the steel. The sacrificial anode corrodes instead of the steel, protecting it. Impressed current cathodic protection involves applying a low-level direct current to the steel, which prevents the formation of galvanic cells. 3. Isolation: By physically separating the special steel from other metals that are more reactive, galvanic corrosion can be prevented. This can be done by using insulating materials, such as plastic or rubber, between the steel and other metals. 4. Alloying: The addition of certain alloying elements to the special steel can improve its resistance to galvanic corrosion. For example, adding chromium to steel forms a passive oxide layer on the surface, which acts as a barrier against corrosion. 5. Design considerations: Proper design and engineering can also help prevent galvanic corrosion. For example, avoiding the use of dissimilar metals in close proximity can minimize the potential for galvanic corrosion. Additionally, designing structures to allow for proper drainage and ventilation can prevent the accumulation of moisture, which can accelerate galvanic corrosion. It is important to note that the selection of the most appropriate method for preventing galvanic corrosion in special steel depends on various factors such as the specific environment, cost considerations, and the desired lifespan of the steel.

Q: How is special steel used in the marine manufacturing process?: Special steel is used in the marine manufacturing process for various applications, such as constructing ship hulls, propeller shafts, and offshore platforms. Its high strength, corrosion resistance, and ability to withstand harsh marine environments make it an ideal material choice. Additionally, special steel's excellent weldability and machinability ensure efficient and reliable production in the marine industry.

Q: How is wear-resistant steel used in mining equipment?: Wear-resistant steel is commonly used in mining equipment due to its high durability and strength. It is utilized in various applications such as excavator buckets, crusher liners, and conveyor parts to withstand the harsh conditions of mining operations. The wear-resistant properties of this steel help to minimize abrasion and extend the equipment's lifespan, resulting in increased productivity and reduced maintenance costs.

Q: How does special steel resist wear and tear?: Special steel resists wear and tear through its unique composition and heat treatment processes. It typically contains additives such as chromium, molybdenum, and vanadium, which enhance its hardness, corrosion resistance, and durability. Additionally, special steel undergoes specialized heat treatment techniques like quenching and tempering, which further improve its strength and ability to withstand stress and abrasion. These properties make special steel highly resistant to wear and tear, allowing it to maintain its structural integrity and performance over extended periods of use.

Q: What are the different methods for nitriding special steel?: There are several methods for nitriding special steel, including gas nitriding, salt bath nitriding, plasma nitriding, and ion nitriding.

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