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

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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 methods of preventing pitting corrosion in special steel?: There are several methods available to prevent pitting corrosion in special steel. These techniques aim to protect the steel surface from the corrosive environment and inhibit the formation of pits. Some of the commonly used methods include: 1. Passivation: Passivation involves treating the steel surface with a chemical solution or coating to create a protective oxide layer. This layer acts as a barrier, preventing the penetration of corrosive agents and reducing the risk of pitting corrosion. 2. Alloying: By adding specific alloying elements to the steel composition, its resistance to corrosion can be improved. Elements such as chromium, nickel, and molybdenum are often used as they enhance the steel's ability to form a stable passive film and resist pitting corrosion. 3. Cathodic protection: This method involves using a sacrificial anode or applying an impressed current to the steel surface. By making the steel cathodic, it becomes less susceptible to corrosion as electrons are drawn away from it, preventing the formation of pits. 4. Coatings: Applying a protective coating to the steel surface can effectively prevent pitting corrosion. Coatings such as paint, epoxy, or polymer-based materials act as a physical barrier, shielding the steel from corrosive agents. 5. Environmental control: Controlling the environment surrounding the steel can also help prevent pitting corrosion. This includes measures such as regulating temperature, humidity, and pH levels to ensure they are within acceptable limits and inhibiting the corrosion process. 6. Regular maintenance: Regular inspection and maintenance of the steel surface are crucial for preventing pitting corrosion. Any signs of damage or deterioration should be addressed promptly to prevent further corrosion and potential pitting. It is important to note that the choice of prevention method depends on various factors such as the specific steel composition, the corrosive environment, and the intended application. Proper selection and implementation of these methods can significantly enhance the resistance of special steel to pitting corrosion, ensuring its longevity and performance.

Q: How is precipitation-hardening steel used in aerospace applications?: Precipitation-hardening steel is commonly used in aerospace applications due to its exceptional strength-to-weight ratio and excellent corrosion resistance. It is extensively used in critical components such as aircraft structural parts, landing gear, engine components, and fasteners. The precipitation hardening process involves heating and cooling the steel to create a fine dispersion of precipitates, which significantly enhances its mechanical properties. This steel's high strength allows for the construction of lighter and more fuel-efficient aircraft, while its corrosion resistance prolongs the lifespan of aerospace components, ensuring safe and reliable operation.

Q: What are the different types of wear-resistant steel?: There are several types of wear-resistant steel, including AR400, AR450, AR500, and Hardox. These steels are specifically designed to withstand abrasion, impact, and wear in various applications such as mining, construction, and manufacturing.

Q: What are the specific requirements for special steel used in the agricultural sector?: Special steel used in the agricultural sector has specific requirements to ensure optimal performance and durability in the demanding conditions it will be subjected to. Some of the key requirements for special steel in the agricultural sector include: 1. Corrosion resistance: Agricultural equipment often comes into contact with corrosive substances such as fertilizers, pesticides, and animal waste. Special steel used in this sector must have high resistance to corrosion to prevent premature deterioration and ensure long service life. 2. High strength: Agricultural equipment is subjected to heavy loads, impacts, and vibrations during operation. Special steel used in this sector must possess high tensile strength and toughness to withstand these forces without deformation or failure. 3. Wear resistance: Agricultural machinery operates in abrasive environments, where soil, rocks, and other debris can cause significant wear on metal surfaces. Special steel used in the agricultural sector should have excellent wear resistance to maintain sharp cutting edges and prevent premature wear. 4. Machinability: Agricultural equipment often requires complex components with intricate shapes and profiles. Special steel used in this sector should have good machinability to enable easy fabrication, welding, and shaping of the steel into the desired form. 5. Heat resistance: Some agricultural processes involve high temperatures, such as heat treatment or exposure to hot gases. Special steel used in these applications should have good heat resistance to maintain its mechanical properties and structural integrity even at elevated temperatures. 6. Cost-effectiveness: Agricultural equipment manufacturers often need to balance performance with cost. Special steel used in the agricultural sector should provide a cost-effective solution, offering the desired properties at a competitive price. By meeting these specific requirements, special steel used in the agricultural sector can provide reliable and efficient performance, contributing to the productivity and longevity of agricultural machinery and equipment.

Q: How does special steel contribute to the manufacturing of industrial machinery?: Special steel contributes to the manufacturing of industrial machinery by providing enhanced strength, durability, and resistance to wear and corrosion. It allows for the production of components that can withstand high temperatures, heavy loads, and harsh operating conditions. The unique properties of special steel enable the creation of precision parts, gears, bearings, and tools that are crucial for the efficient and reliable functioning of industrial machinery.

Q: Can special steel be used in the recycling industry?: Yes, special steel can be used in the recycling industry. Special steel, which is highly durable and resistant to corrosion, can be recycled and reused in various applications. It can be melted down and reprocessed to create new steel products, reducing the need for raw materials and minimizing waste in the recycling industry.

Q: What are the requirements for special steel used in agricultural machinery?: The requirements for special steel used in agricultural machinery include high strength and durability to withstand heavy loads and harsh working conditions, excellent impact resistance to handle rough terrains, good corrosion resistance to protect against rust and moisture, and high wear resistance to prolong the lifespan of components exposed to abrasive materials. Additionally, the steel should have good weldability and machinability to facilitate the manufacturing process of agricultural machinery.

Q: What are the different methods of surface coating for special steel?: For special steel, there exists a variety of surface coating methods that can be utilized based on the desired outcome and application. Some of the most frequently employed techniques are as follows: 1. Electroplating: By employing an electric current, a thin layer of metal can be deposited onto the surface of the steel. This process enhances the steel's corrosion resistance, wear resistance, and overall aesthetic appearance. 2. Hot-dip galvanizing: This method entails immersing the steel in molten zinc, resulting in the formation of a protective coating on the surface. Hot-dip galvanizing offers exceptional corrosion protection and can be utilized for both interior and exterior applications. 3. Powder coating: This technique involves the application of a dry powder onto the steel's surface, followed by heating and curing to create a durable and visually appealing coating. Powder coating provides excellent corrosion resistance, impact resistance, and allows for customization of colors. 4. Physical vapor deposition (PVD): PVD is a vacuum coating process where thin layers of metal are deposited onto the steel's surface. This method enhances the steel's hardness, wear resistance, and chemical resistance. It is commonly employed for decorative finishes and to improve the performance of cutting tools. 5. Chemical conversion coating: This method entails treating the steel surface with a chemical solution, which reacts with the surface to form a protective coating. Chemical conversion coatings provide corrosion resistance and can serve as a base for painting or other coatings. 6. Thermal spraying: Thermal spraying involves melting or heating a coating material and projecting it onto the steel surface using a spray gun. This technique can be utilized to apply a wide range of coatings, including metals, ceramics, and polymers. Thermal spraying improves the steel's wear resistance, corrosion resistance, and thermal insulation properties. These examples merely scratch the surface of the available surface coating methods for special steel. The choice of method relies on factors such as desired properties, application requirements, and budget. Consulting with experts in the field is crucial to determine the most suitable coating method for specific steel applications.

Q: How is special steel used in the production of injection molds?: Due to its unique properties, special steel is widely utilized in the manufacturing of injection molds, which play a vital role in the production of various plastic and metal items through the injection molding process. The excellent heat resistance of special steel is one of the main factors behind its preference in injection molds. When the molten material is injected into the mold at high pressure and temperature, special steel can endure these extreme temperatures without warping or losing its shape. This ensures the final product's accuracy and precision. Furthermore, special steel exhibits remarkable hardness and wear resistance. Given that injection molds are subjected to frequent use, wear and tear can occur, leading to dimensional inaccuracies and a decline in product quality. By employing special steel, which is specifically designed to resist wear, the lifespan of injection molds is extended, guaranteeing consistent and high-quality production. Moreover, special steel offers good machinability, enabling the precise fabrication of intricate and complex mold designs. This capability is crucial in the production of molds with intricate geometries and precise details, which is essential for manufacturing complex plastic or metal parts. Additionally, special steel provides a superior surface finish for the molded products. The use of special steel in the creation of injection molds results in smooth and polished surfaces, ensuring that the final products possess a high-quality finish. In conclusion, special steel is extensively utilized in the production of injection molds due to its exceptional heat resistance, hardness, wear resistance, machinability, and surface finish. These properties make it an ideal material for ensuring accurate and precise manufacturing of plastic and metal products through the injection molding process.

Q: What are the properties of mold steel?: Mold steel possesses several properties that make it ideal for use in mold making. It typically has high hardness, excellent wear resistance, and good toughness. Mold steel also exhibits good machinability, allowing for intricate mold designs to be easily achieved. Additionally, it has good thermal conductivity, which aids in efficient cooling during the molding process. Overall, the properties of mold steel enable it to withstand the high pressures and temperatures involved in molding, ensuring durability and longevity of the molds.

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