Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

Special Steel 8620H 40CrNiMoA Iron Round Steel Bar System 1

Special Steel 8620H 40CrNiMoA Iron Round Steel Bar System 2

Special Steel 8620H 40CrNiMoA Iron Round Steel Bar System 3

Special Steel 8620H 40CrNiMoA Iron Round Steel Bar System 4

Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 100000 m.t./month

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Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

Detailed Information of Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

Name	Steel Round Bar
Shape	Round Bar/Square Bar/Flat Bar/Plate/Wire
Standard	GB/ASTM/SAE/AISI/DIN/JIS/EN/BS
Surface Treatment:	Black/Peeling/Polished/Machined
Delivery Condition:	Hot Rolled or Forged/Peeled or Black Surface
Test	SGS/UT 100% Elements Testing
Certificate:	ISO/Mill Certificate
Service:	24 hours online service /
Service:	more than 20 years trading and manufacture
Quality Assurance:	the third party inspection, such as SGS, BV, TUV…etc. is acceptable
Packaging Details:	Seaworthy Packaging or as per customer's packing instruction

Product Overviews of Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

Product Name	Typical Grades	Diameter(mm)	Standard Adopted
Carbon Steel	20 (1020/S20C/C22)
	40 (1040/S40C/C40)	Ø16-Ø300
	45 (1045/S45C/C45)
Bearing Steel	GCr9 (51100/SUJ1)
	GCr15 (52100/SUJ2/100Gr6)	Ø12-Ø250
	GCr9SiMn (A485-Gr.1/SUJ3)		GB/SAE/
Cr-Mo Steel	20Cr (5120/SCr420H/20Cr4)		JIS/DIN
	40Cr (5140/SCr440/41Cr4)	Ø12-Ø250
	42CrMo(4140/SCM440/42CrMo4)
Gear Steel	20CrNiMo
	20CrMn(5115/SMnC420/20MnCr5)	Ø16-Ø600
	20CrNiMo(8620/SNCM220/20CrMiMo2)

Company Introduction of Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.

With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.

Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

After-sale service	l CNBM provides the services and support you need for every step of our cooperation. We’re the business partners you can trust; you can relax and get on with doing business.
	l For any problem, please kindly contact us at any your convenient time, we’ll reply you in our first priority within 24 hours

Advantages	l Industry experience over 20 years.
	l Shipment of goods -More than 70 countries worldwide.
	l The most convenient transport and prompt delivery.
	l Competitive price with best service.
	l High technical production line with top quality products.
	l High reputation based on best quality products.

Packaging & Delivery of Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

Packaging Detail	Sea worthy packing /as per customer's packing instruction
Delivery Detail	15 ~ 40 days after receiving the deposit

Products Show

Special Steel 8620H 40CrNiMoA Iron Round Steel Bar

FAQ:

Are you a trading company or manufacturer?	Manufacturer
What’s the MOQ?	1000m2
What’s your delivery time?	15-20 days after downpayment received
Do you Accept OEM service?	Yes
what’s your delivery terms?	FOB/CFR/CIF
What's the Payment Terms?	30% as deposit,70% before shipment by T/T
	Western Union acceptable for small amount.
	L/C acceptable for large amount.
	Scrow ,Paybal,Alipay are also ok
Why choose us?	Chose happens because of quality, then price, We can give you both. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals.
Why choose us?
What's your available port of Shipment?	Main Port, China
What’s your featured services?	Our service formula: good quality+ good price+ good service=customer's trust
What’s your featured services?
Where are your Market?	Covering more than 160 countries in the world

Q:What are the different tempering techniques used for special steel?: Some of the different tempering techniques used for special steel include air tempering, oil tempering, water tempering, and salt bath tempering.

Q:How does special steel perform in high-speed machining operations?: Special steel is designed with high-speed machining operations in mind, as it possesses unique properties that make it perfect for cutting, drilling, and shaping at high speeds. To begin with, special steel boasts excellent thermal conductivity, enabling it to effectively dissipate heat generated during machining. This is crucial in high-speed operations, as excessive heat can result in tool wear and deformation. By efficiently transferring heat away from the cutting edge, special steel helps prolong tool lifespan and maintain dimensional accuracy. Additionally, special steel exhibits high hardness and strength, enabling it to withstand the intense forces and pressures encountered during high-speed machining. This allows it to retain its shape and integrity, reducing the likelihood of tool breakage or deformation. Furthermore, its strength ensures that the machined parts possess exceptional durability and resistance to wear. Moreover, special steel demonstrates good machinability, making it easy to cut and shape with minimal effort. Its composition and microstructure are optimized for efficient chip formation and removal, ensuring smooth operations and minimizing the risk of chip clogging or tool jamming. Furthermore, special steel often contains alloying elements like chromium, molybdenum, and vanadium, which enhance its resistance to corrosion and wear. This is particularly important in high-speed machining, where the cutting tools and workpiece are in constant contact. The improved corrosion and wear resistance of special steel contribute to longer tool lifespan and improved surface finish. In summary, special steel is engineered specifically to excel in high-speed machining operations. Its thermal conductivity, hardness, strength, machinability, and resistance to corrosion and wear make it the preferred choice for applications that demand fast and precise metal removal.

Q:What are the different heat treatment methods used for special steel?: There are several heat treatment methods used for special steel, each with its own purpose and benefits. These methods are employed to enhance the mechanical properties of the steel, such as hardness, toughness, and strength. Some of the commonly used heat treatment methods for special steel include: 1. Annealing: This method involves heating the steel to a specific temperature and holding it at that temperature for a certain period of time, followed by slow cooling. Annealing helps in reducing the internal stress and improving the machinability of the steel. 2. Normalizing: In this process, the steel is heated to a temperature above its critical range and then allowed to cool in still air. Normalizing refines the grain structure of the steel, making it more uniform and improving its strength and toughness. 3. Quenching: Quenching is a rapid cooling process that involves immersing the steel in a quenching medium, such as oil or water, after it has been heated to a specific temperature. This method results in a hardened steel with increased hardness and wear resistance. 4. Tempering: Tempering is a heat treatment process that involves reheating the hardened steel to a specific temperature and then cooling it in still air. This process helps to reduce the brittleness of the steel and improve its toughness and ductility. 5. Austempering: Austempering is a specialized heat treatment method that involves quenching the steel to a temperature just above its martensite transformation range and then holding it at that temperature for a specific time, followed by air cooling. This process produces a steel with a combination of high strength and toughness. 6. Martempering: Martempering is a variation of quenching and tempering, where the steel is quenched and then held at a temperature slightly above its martensite transformation range before air cooling. This method is used to produce a steel with improved toughness and reduced distortion. 7. Nitriding: Nitriding is a surface hardening technique that involves introducing nitrogen into the steel by heating it in an atmosphere of ammonia gas. This process forms a hard nitride layer on the surface of the steel, increasing its hardness, wear resistance, and corrosion resistance. These heat treatment methods are crucial in tailoring the properties of special steel to meet specific requirements in various industries, such as automotive, aerospace, and tool manufacturing. The choice of heat treatment method depends on the desired properties and the intended application of the steel.

Q:What are the different special steel products available in the market?: There are a wide variety of special steel products available in the market, each designed to meet specific industrial needs. Some of the common special steel products include: 1. Stainless Steel: This is a corrosion-resistant steel alloy that contains a minimum of 10.5% chromium. It is widely used in applications that require high resistance to corrosion, such as kitchen utensils, medical instruments, and chemical processing equipment. 2. Tool Steel: Tool steel is a type of carbon and alloy steel that is specifically designed to be used in the manufacturing of tools. It is known for its high hardness, resistance to abrasion, and ability to retain sharp edges. Tool steel is commonly used in the production of cutting tools, dies, and molds. 3. Alloy Steel: Alloy steel is a steel that has been alloyed with other elements, such as manganese, silicon, nickel, or chromium, to enhance its mechanical properties. It offers improved strength, toughness, and wear resistance compared to carbon steel. Alloy steel is used in various applications, including automotive components, construction equipment, and machinery parts. 4. High-Speed Steel: High-speed steel is a type of tool steel that is capable of cutting at high speeds without losing its hardness or ability to retain sharp edges. It is commonly used in the production of drills, milling cutters, and saw blades. 5. Spring Steel: Spring steel is a low-alloy, medium or high carbon steel that is known for its ability to retain its shape and elasticity even under high stress or repeated loadings. It is widely used in the manufacturing of springs, suspension systems, and shock absorbers. 6. Electrical Steel: Electrical steel, also known as silicon steel, is a specialized steel alloy that exhibits low electrical losses and high magnetic permeability. It is used in the production of electrical transformers, motors, and generators. 7. Heat-Resistant Steel: Heat-resistant steel is designed to withstand high temperatures without losing its mechanical properties. It is commonly used in applications such as furnaces, heat exchangers, and gas turbines. These are just a few examples of special steel products available in the market. The choice of steel product depends on the specific requirements of the application, including factors such as corrosion resistance, strength, hardness, and heat resistance.

Q:How does special steel perform in terms of wear resistance in abrasive environments?: Special steel is renowned for its remarkable ability to resist wear in environments with abrasives. The unique combination of elements and the specific heat treatment methods employed during its production result in a greater level of hardness compared to regular steels. This enhanced hardness grants special steel exceptional resistance to wear caused by abrasive particles or surfaces. In environments where friction and contact with hard materials are prevalent, special steel demonstrates outstanding performance. It can endure the erosive effects of abrasive particles, such as sand, rocks, or metal fragments, without experiencing significant wear or damage. This durability positions special steel as the ideal choice for various applications, including mining equipment, cutting tools, industrial machinery, and automotive components. Furthermore, the wear resistance of special steel extends beyond its surface, permeating throughout its structure. Consequently, even if the steel's surface becomes scratched or abraded, the underlying material remains highly resistant to wear. This characteristic ensures that components made from special steel enjoy an extended lifespan, thereby reducing maintenance costs and downtime. Moreover, special steel retains its wear resistance even when subjected to high temperatures. This property proves particularly advantageous in abrasive environments where the heat generated by friction can accelerate wear. The ability of special steel to maintain its hardness and wear resistance at elevated temperatures guarantees its effectiveness in demanding applications such as high-speed machining or hot forging. Overall, special steel surpasses standard steels when it comes to wear resistance in abrasive environments. Its superior hardness, structural integrity, and temperature resistance make it an excellent choice for applications where durability and longevity are crucial.

Q:Can special steel be used for making surgical instruments?: Yes, special steel can be used for making surgical instruments. Special steel, such as stainless steel or high-carbon steel, is preferred for surgical instruments due to its excellent corrosion resistance, durability, and ability to be sterilized. These properties make it suitable for maintaining the hygiene and performance required in surgical settings.

Q:How does special steel compare to other materials like aluminum or titanium?: Special steel, such as stainless steel or tool steel, offers unique properties that make it highly desirable for certain applications. Compared to materials like aluminum or titanium, special steel is generally stronger, more durable, and has better resistance to corrosion. It also often provides better heat resistance and can be easily machined or welded. However, aluminum and titanium have their own advantages such as being lighter in weight and having higher strength-to-weight ratios. The choice of material depends on the specific requirements of the application.

Q:How does special steel contribute to the oil and gas industry?: Special steel plays a crucial role in the oil and gas industry by providing strength, corrosion resistance, and durability to equipment and infrastructure. It is used in the construction of pipelines, drill pipes, wellheads, valves, and various other components. The unique properties of special steel enable it to withstand harsh operating conditions, high pressures, and corrosive environments, ensuring the reliability and safety of oil and gas operations.

Q:How does special steel perform in high-temperature oxidation conditions?: Special steel performs well in high-temperature oxidation conditions due to its exceptional resistance to oxidation and formation of protective oxide layers, which helps prevent corrosion and maintain its strength and integrity even at elevated temperatures.

Q:What are the different heat treatment processes used in special steel?: Some of the different heat treatment processes used in special steel include annealing, normalizing, tempering, quenching, and case hardening.

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