Special Steel 8620H 40CrNiMoA Iron Steel Round Bar

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

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

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

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

Special Steel 8620H 40CrNiMoA Iron Steel Round Bar

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 3 m.t.

Supply Capability:: 100000 m.t./month

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Special Steel 8620H 40CrNiMoA Iron Steel Round Bar

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

Name	8620H 40CrNiMoA 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

Carbon structure round bar	Q195 Q235A Q235B 10# 20#-55# S45CB
Low alloy high strength round bar	Q345A/Q345C/Q345D Q345B Q345E
Alloy structure round bar	SAE51B20 20Cr 40Cr 40CrV 20CrMo/30CrMo/35CrMo/42CrMo 20CrMoA/30CrMoA/35CrMoA/42CrMoA/42Cr ML20CrMo/ML30CrMo/ML35CrMo/ML42CrMo B7/SCM435-440 20MnTiB 20CrMnMo 20CrMoH 42CrMoH 40MnB/40MnBH 30Mn2-40Mn2 27SiMn 50CrVA 30CrMnTi
Pinion steel	20CrMnTi 20CrMnTiH 20CrMnTiHCS/20CrMnTiHLD Q20CrMnTi-1/Q20CrMnTi-2
Sucker rod	20-35CrMoA
Free-cutting steel	GT1215S
Spring steel	60Si2MnA 65Mn
Ball bearing steel	GCr15

Chemical Composition of Special Steel 8620H 40CrNiMoA Iron Steel Round Bar

C	Si	Mn	P	S	Cr	Ni	Cu

0.17-0.24	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.25	≤0.25	≤0.25

Tensile strength (σb/MPa)	Yield strength (σb/MPa)	Elongation (δ5/%)
≥410(42)	≥245(25)	≥25

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

Certificates of Special Steel 8620H 40CrNiMoA Iron Steel Round Bar

Special Steel 8620H 40CrNiMoA Iron Steel Round Bar

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

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

Products show of Special Steel 8620H 40CrNiMoA Iron Steel Round Bar

Special Steel 8620H 40CrNiMoA Iron Steel Round Bar

FAQ

Are you a trading company or manufacturer?	Manufacturer
What’s the MOQ?	3 metric ton
What’s your delivery time?	15-35 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.
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
Where are your Market?	Covering more than 160 countries in the world

Q:What are the requirements for special steel used in ballistic protection?: The requirements for special steel utilized in ballistic protection are quite rigorous and specific. Firstly, in order to effectively endure the impact of ballistic threats, the steel must possess a high level of hardness and strength. This is typically achieved by incorporating alloying elements like chromium, nickel, and molybdenum, which enhance the steel's strength and hardness. Furthermore, the steel should demonstrate exceptional toughness and ductility to prevent brittle fracture upon impact. This is crucial as it guarantees that the steel can absorb and disperse the energy from the ballistic threat, reducing penetration and minimizing the risk of injury. Moreover, the special steel used in ballistic protection should exhibit outstanding resistance to deformation and penetration. It should be capable of withstanding deformation even under high-velocity impact, maintaining its structural integrity and preventing the penetration of the ballistic threat. Another vital requirement is good weldability, as many components of ballistic protection are typically assembled through welding. The steel should have low susceptibility to cracking during the welding process, allowing for the creation of strong and dependable ballistic protection systems. Lastly, the special steel employed in ballistic protection should possess excellent corrosion resistance. This is necessary to ensure the durability and longevity of the protective equipment, particularly in environments where exposure to moisture, chemicals, or harsh weather conditions is likely. To fulfill these requirements, various types of special steel have been developed, such as high-hardness armor steel, ballistic steel, and armor-piercing steel. These steels often undergo rigorous testing and certification processes to ensure they meet the necessary ballistic protection standards.

Q:What are the challenges in heat treating special steel?: Some of the challenges in heat treating special steel include achieving uniform heating and cooling rates, controlling distortion and warping, managing the formation of unwanted phases or microstructures, maintaining precise temperature control, and ensuring consistent and repeatable results. Additionally, special steels may have specific alloying elements or compositions that require specialized heat treatment processes or equipment, further adding to the complexity and challenges in heat treating these materials.

Q:How is special steel used in the chemical industry?: Special steel is used in the chemical industry primarily for its corrosion resistance, high temperature stability, and durability. It is widely utilized in the construction of chemical processing equipment, such as reactors, tanks, and pipelines, to withstand harsh and corrosive environments. Additionally, special steel alloys are employed in the production of catalysts, which are essential for various chemical reactions. Overall, special steel plays a crucial role in ensuring the safety, efficiency, and longevity of chemical processes within the industry.

Q:Can special steel be used in the nuclear power industry?: Yes, special steel can be used in the nuclear power industry. Special steel, such as stainless steel or alloy steel, is often used for various components in nuclear power plants due to its high strength, corrosion resistance, and ability to withstand high temperatures and radiation. These steels are utilized in reactor vessels, steam generators, piping systems, and other critical structures to ensure the safety and reliability of nuclear power plants.

Q:How is nitriding steel used in the manufacturing of engine components?: Nitriding steel is commonly used in the manufacturing of engine components due to its ability to enhance their performance and durability. The process of nitriding involves diffusing nitrogen into the surface of the steel, forming a hard and wear-resistant layer. This improves the component's resistance to corrosion, fatigue, and high temperatures, ultimately extending its lifespan and enhancing its overall performance in engine applications.

Q:What is the impact of high temperature on the mechanical properties of special steel?: The mechanical properties of special steel are significantly affected by high temperature. When subjected to high temperatures, special steel may experience thermal softening, which leads to a decrease in its mechanical strength. This is primarily caused by the reduction in yield strength and hardness of the material at elevated temperatures. One of the main consequences of high temperature on special steel is the decrease in its ability to resist deformation. At elevated temperatures, the steel becomes more ductile, making it more prone to elongation and plastic deformation. This increase in ductility can result in a loss of shape and integrity under load, leading to distortion, warping, or even component failure. Additionally, high temperatures can induce changes in the microstructure of special steel. Prolonged exposure to elevated temperatures can result in the formation and growth of grain boundaries, weakening the material's mechanical properties. Moreover, high temperature can facilitate the diffusion of impurities or alloying elements within the steel, altering its chemical composition and potentially affecting its mechanical behavior. Another consequence of high temperature on special steel is the decrease in its resistance to corrosion and oxidation. At elevated temperatures, the steel becomes more vulnerable to oxidation, leading to the formation of scales or even complete degradation of the material. This compromises the steel's mechanical properties, including its strength and toughness. In conclusion, high temperature has a detrimental impact on the mechanical properties of special steel. It reduces strength, increases ductility, alters microstructure, and decreases resistance to corrosion and oxidation. Therefore, it is crucial to consider the effects of high temperature when designing and selecting special steel for applications involving exposure to elevated temperatures.

Q:How is special steel used in the construction industry?: Special steel is used in the construction industry for various applications due to its exceptional strength, durability, and resistance to corrosion. It is commonly used for manufacturing structural components, such as beams, columns, and girders, that require high load-bearing capacities. Special steel is also utilized in the construction of bridges, towers, and high-rise buildings to ensure structural integrity and safety. Additionally, it finds application in reinforcing concrete structures, creating strong and long-lasting foundations. Overall, special steel plays a crucial role in enhancing the strength and stability of construction projects.

Q:What are the properties of wear-resistant stainless steel?: Wear-resistant stainless steel possesses properties such as high hardness, excellent corrosion resistance, and good toughness. It is designed to withstand abrasion, erosion, and wear caused by friction, making it ideal for applications where durability and long-lasting performance are crucial, such as in industrial machinery, cutting tools, and automotive components.

Q:How does heat treatment affect the properties of special steel?: Heat treatment can significantly impact the properties of special steel. The process involves heating and cooling the steel in a controlled manner, which alters its microstructure, resulting in changes to its hardness, strength, toughness, and ductility. By carefully selecting the temperature and duration of heat treatment, desired properties such as improved hardness, increased strength, and enhanced wear resistance can be achieved. Additionally, heat treatment can also relieve internal stresses, enhance machinability, and improve dimensional stability of special steel.

Q:How does special steel contribute to the industrial machinery aftermarket industry?: By providing high-quality and durable components, special steel plays a vital role in the industrial machinery aftermarket industry. It enhances machinery performance and longevity, which is crucial in this industry. One of the main advantages of special steel is its exceptional strength and resistance to wear and tear. Regular steel components deteriorate quickly due to heavy loads, extreme temperatures, and corrosive environments. However, special steel alloys are specifically designed to withstand these harsh conditions. This ensures that machinery operates efficiently for a longer period. In addition, special steel offers excellent machinability, making it easier to manufacture intricate and precise components. This enables aftermarket manufacturers to produce replacement parts that fit perfectly into existing machinery. As a result, downtime during repairs and maintenance is minimized. Special steel's machinability also allows for customization, as it can be easily shaped and modified according to the specific requirements of different machinery models. Moreover, special steel's exceptional heat resistance makes it ideal for producing high-temperature components used in industrial machinery. These components need to withstand intense heat without losing their structural integrity. Special steel alloys possess excellent heat resistance properties, ensuring that machinery can operate at high temperatures without compromising performance or safety. Furthermore, special steel contributes to the industrial machinery aftermarket industry by providing corrosion-resistant components. Machinery in industries such as oil and gas or marine is often exposed to corrosive substances or environments. Regular steel components are susceptible to corrosion, leading to premature failure and expensive repairs. However, special steel alloys are highly resistant to corrosion, enhancing the durability and reliability of machinery in these demanding conditions. Overall, special steel's unique properties, including strength, machinability, heat resistance, and corrosion resistance, significantly contribute to the industrial machinery aftermarket industry. By utilizing special steel components, manufacturers can enhance machinery performance, durability, and longevity, reducing downtime, and improving overall operational efficiency.

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