20Cr Steel Round Bar SAE520 Steel Round Bar

20Cr Steel Round Bar SAE520 Steel Round Bar

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 50000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Round Bar 42CrMo 4140 Steel of CNBM

Grade AISI 4140,42CrMo, SCM440 Alloy Steel Round Bar

Grade AISI5152 CNBM Alloy Special Steel Round Bar

Spring Steel Plate AISI 6150 Steel Sheet

65Mn Spring Steel Cold Rolled Strip Steel

Hot Rolled Carbon 25mm Thick Mild Steel Plate S45c

AISI 4130, 4130 Steel, 4130 Steel Price

Grade SAE 4140 Steel Price_Steel Round Bar Dimension

Specification

Type:

Alloy Steel

Shape:

Steel Round Bar

20Cr Steel Round Bar SAE520 Steel Round Bar

Product Description:

1.Standard:40Cr,20Cr, 40CrMo4,SCM440,AISI4140, etc.
2.Diameter:25mm-450mm

3.Length:5.8/6m-12m or as required

4.Application:re-manufacture, structural steel etc.

5.Certificates:ISO9001:2008,ISO14001:2004,OHSAS18001

6.Packing: In bundles,Standard export sea-worthy packing or as customer's requirement

7.Shipment: by bulk or by container

8.Quality Contation

Both end of each bar must be cut.

Ladle furnanced and vacuum de-gassed

Show heat No. on each bar

Surface condition the surface of the hot rolled square bar shall befree cracks, scar and wrinkles that affect the use of the

billets. In case there is the above-mentioned defect, it shall be remove.

The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be

within the limit stipulated in the contract.

Chemical composition:

Grade	C	Si	Mn	Cr
20Cr	0.18-0.24	0.17-0.37	0.5-0.8	0.7-0.9

Specification:

OD	Length	Material	Standard	Technique
16-260mm	6-12m or aques per request	20#	GB ASTM DIN	Hot rolled
16-350mm		45#		Hot rolled
200-500mm		45#		Forged
20-250mm		20Cr,40Cr,20-42CrMo		Hot rolled
50-300mm		GCr15		Hot rolled

Application:

Hot rolled alloy structure steel round bar are widely used in machinery making, autombile making, railway, mine machinery, petoleum machinry, agricultural machinery and civil archtectue such as all kinds of shafts, screws, connecting rods, hardware tools, gears, standard parts, spanners fasteners, structural parts for automobile and agricultural machinery, outer and iner sleeves, rollers and balls for bearing making.

Product Show:

20Cr Steel Round Bar SAE520 Steel Round Bar

Q: Can special steel be used in the telecommunications industry?: Yes, special steel can be used in the telecommunications industry. Special steel, such as stainless steel or corrosion-resistant steel, can be utilized for various applications in telecommunications infrastructure, including tower structures, antenna components, cables, and connectors. These types of steel offer high strength, durability, and corrosion resistance, ensuring reliable and long-lasting performance in the telecommunications sector.

Q: How does special steel contribute to the agricultural sector?: The agricultural sector benefits greatly from the use of special steel in multiple ways. Firstly, special steel's strength and durability make it an ideal material for manufacturing various agricultural machinery and equipment. Tractors, plows, harvesters, and irrigation systems, among others, all require sturdy and reliable components. Special steel provides the necessary strength and resistance to wear and tear, enabling these machines to withstand the demanding conditions of agricultural work. In addition, special steel is perfect for producing high-quality cutting tools that are essential in farming operations. Sickles, scythes, and pruning shears, for example, need to have sharp and durable blades for efficient vegetation cutting. Special steel's hardness and strength make it a suitable material for manufacturing such tools, ensuring they maintain their sharpness even with prolonged use. Moreover, special steel contributes to the agricultural sector by enabling the construction of strong and durable infrastructure. Agricultural buildings, storage facilities, and fencing often require materials that can withstand the elements and protect crops, livestock, and equipment. Special steel, with its resistance to rust and structural integrity, can be used in the construction of barns, silos, sheds, and fencing, providing long-lasting and reliable structures. In summary, special steel plays a vital role in the agricultural sector by providing the necessary strength, durability, and corrosion resistance for the manufacturing of machinery, cutting tools, and infrastructure. These properties enhance efficiency, productivity, and reliability in agricultural operations, ultimately benefiting farmers and the overall agricultural industry.

Q: How does special steel perform in high-temperature corrosion?: Special steel has been specifically engineered to excel in environments with high-temperature corrosion. Its exceptional properties grant it exceptional resistance against oxidation and corrosive reactions when subjected to elevated temperatures. The high chromium content found in special steel is a key factor contributing to its performance in high-temperature corrosion. Chromium creates a protective oxide layer, referred to as a passive film, which functions as a barrier against corrosive elements. This passive film remains stable even under high temperatures, successfully preventing oxidation and corrosion. Furthermore, special steel often incorporates additional alloying elements like nickel, molybdenum, and titanium, which further enhance its ability to resist high-temperature corrosion. These elements augment the steel's capacity to withstand aggressive chemical environments typically encountered in industrial processes involving high temperatures and corrosive substances. Moreover, special steel is renowned for its remarkable mechanical properties, which encompass high strength and toughness. These qualities enable the steel to endure the harsh conditions associated with high-temperature corrosion. Even when exposed to extreme temperatures and corrosive chemicals, it can retain its structural integrity and dimensional stability. In conclusion, special steel's exceptional resistance against high-temperature corrosion makes it the ideal choice for various applications in industries such as petrochemical, power generation, and aerospace. Its capacity to maintain performance and durability in challenging environments guarantees the longevity and reliability of equipment and structures, ultimately reducing maintenance and replacement expenses.

Q: What is the composition of special steel?: Special steel's composition may vary depending on its intended use and the specific properties needed. Generally, it is an alloy of iron and carbon, with additional elements incorporated to enhance its strength, toughness, corrosion resistance, and other desired characteristics. Commonly found alloying elements in special steel compositions include chromium, nickel, manganese, molybdenum, vanadium, tungsten, and cobalt. These elements are meticulously chosen and added in precise quantities to attain the desired mechanical, physical, and chemical properties of the steel. The composition of special steel can be customized to meet industry-specific requirements, such as those in aerospace, automotive, oil and gas, or construction.

Q: Can special steel be used in the textile manufacturing industry?: Yes, special steel can be used in the textile manufacturing industry. Special steel, such as stainless steel or high carbon steel, can be utilized in textile machinery parts, needles, or cutting tools due to their durability, corrosion resistance, and strength. These properties make special steel suitable for various processes involved in textile manufacturing, such as weaving, knitting, or cutting fabrics.

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: How does special steel contribute to improving product safety?: Special steel contributes to improving product safety in several ways. Firstly, special steel is known for its high strength and durability, making it ideal for manufacturing components that need to withstand extreme conditions or heavy loads. This ensures that products made with special steel are less likely to fail or break, reducing the risk of accidents or injuries. Secondly, special steel can be engineered to have specific properties such as corrosion resistance, fire resistance, or impact resistance. By incorporating these properties into the design and production of products, special steel enhances their safety features. For example, in the automotive industry, special steel is used to manufacture reinforced frames and safety components, providing better protection to passengers in case of collisions. Additionally, special steel is often used in critical applications where reliability and precision are paramount, such as medical equipment, aerospace components, or industrial machinery. The high performance and consistency of special steel ensure that these products function as intended, minimizing the chances of malfunctions or failures that could jeopardize safety. Overall, the use of special steel in various industries contributes to improving product safety by enhancing strength, durability, resistance to external factors, and reliability.

Q: What are the main advantages of using special steel in the construction of bridges?: The main advantages of using special steel in the construction of bridges are its high strength, durability, and resistance to corrosion. Special steel, such as high-strength low-alloy steel or weathering steel, can withstand heavy loads and extreme weather conditions, making it ideal for bridge construction. Its superior strength allows for the design of lighter and more cost-effective structures. Additionally, special steel's resistance to corrosion reduces maintenance and repair costs, ensuring the longevity and safety of the bridge.

Q: How are copper alloys used in electrical applications?: Copper alloys are widely used in electrical applications due to their excellent conductivity and corrosion resistance. They are used to manufacture electrical wires, connectors, and busbars, ensuring efficient transmission of electricity. Additionally, copper alloys are utilized for electrical contacts and switches, as they provide good wear resistance and high electrical and thermal conductivity.