Grade SAE4340 High Speed Steel Bar for Gears

Grade SAE4340 High Speed Steel Bar for Gears System 1

Grade SAE4340 High Speed Steel Bar for Gears System 2

Grade SAE4340 High Speed Steel Bar for Gears System 3

Grade SAE4340 High Speed Steel Bar for Gears System 4

Grade SAE4340 High Speed Steel Bar for Gears

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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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Grade SAE4340 High Speed Steel Bar for Gears

Detailed Information of Grade SAE4340 High Speed Steel Bar for Gears

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 4130 Steel Rod/4130 Steel Bar/Alloy 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 Grade SAE4340 High Speed Steel Bar for Gears

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.

Grade SAE4340 High Speed Steel Bar for Gears

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 Grade SAE4340 High Speed Steel Bar for Gears

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

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Grade SAE4340 High Speed Steel Bar for Gears

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 specific requirements for special steel used in the textile industry?: The primary focus when considering the specific needs of special steel used in the textile industry lies in its durability, corrosion resistance, and heat resistance. To maintain its structural integrity, the steel must withstand the harsh conditions and high temperatures involved in textile processing. Firstly, it is essential for the steel used in the textile industry to possess exceptional durability. It must be capable of enduring significant mechanical stress, such as tension, compression, and bending, without experiencing any deformation or breakage. This is crucial due to the constant movement and repetitive actions of the machinery in the textile industry. Another vital requirement is corrosion resistance. The steel must be able to resist corrosion caused by chemicals, moisture, and other environmental factors. This is particularly important as textile manufacturing processes frequently involve the use of various chemicals and water. Heat resistance is also a crucial factor to consider when selecting special steel for the textile industry. Since manufacturing processes involve high temperatures, the steel must be able to withstand and maintain its strength and properties under these conditions. This ensures the longevity and efficiency of the equipment and machinery used in textile production. Additionally, the steel used in the textile industry should exhibit excellent machinability. It should be easy to cut, shape, and form into various components and parts required for textile machinery. This allows for efficient manufacturing and customization of equipment to meet specific needs. Furthermore, the steel may also be required to meet specific standards and certifications established by regulatory bodies or industry organizations. This ensures that the steel meets the necessary quality and safety requirements. For example, it may need to comply with international standards like ISO 9001 for quality management systems. To summarize, the special steel used in the textile industry must meet requirements for durability, corrosion resistance, heat resistance, machinability, and compliance with relevant standards. Meeting these criteria ensures that the steel can withstand the demanding conditions of textile manufacturing and contribute to the efficiency and reliability of the machinery involved.

Q:How is heat-resistant steel used in the production of furnaces and boilers?: Heat-resistant steel is used in the production of furnaces and boilers due to its ability to withstand high temperatures without deforming or deteriorating. It is specifically designed to retain its strength and structural integrity even in extreme heat conditions. This steel is utilized for components such as heat exchangers, tubes, and liners, ensuring efficient heat transfer and preventing damage to the equipment. Ultimately, heat-resistant steel plays a crucial role in enhancing the durability and performance of furnaces and boilers.

Q:How does special steel contribute to the manufacturing of cutting tools?: Special steel is a key component in the manufacturing of cutting tools due to its exceptional properties such as high hardness, toughness, and wear resistance. These characteristics enable cutting tools to withstand the rigors of various cutting operations, ensuring longer tool life and improved cutting performance. Furthermore, special steel can be customized to meet specific requirements, making it an ideal choice for manufacturing cutting tools that are used in a wide range of industries, including automotive, aerospace, and manufacturing.

Q:What are the different heat treatment techniques used for special steel?: There are several heat treatment techniques used for special steel, including annealing, normalizing, quenching, tempering, and case hardening. Each technique serves a specific purpose in altering the properties of the steel, such as improving hardness, strength, toughness, or ductility. Annealing involves heating the steel to a specific temperature and then slowly cooling it to relieve internal stresses and increase ductility. Normalizing is similar to annealing but involves air cooling instead of slow cooling. Quenching involves rapid cooling of the steel to increase hardness, while tempering is a subsequent heating process to reduce brittleness and enhance toughness. Case hardening involves heating the steel in the presence of a carbon-rich atmosphere to increase surface hardness while maintaining a tough core.

Q:How does special steel contribute to the construction industry?: Special steel contributes to the construction industry by providing high-strength and durable materials that are essential for building structures that can withstand extreme conditions, such as earthquakes, high winds, and heavy loads. Its unique properties, such as corrosion resistance, heat resistance, and ability to be molded into various shapes, enable the construction of safer and more efficient buildings, bridges, and other infrastructure projects. Additionally, special steel offers cost-effective solutions by reducing the need for maintenance and repairs, thus extending the lifespan of structures and ensuring long-term sustainability in the construction industry.

Q:How is special steel used in the textile supply chain?: Special steel is used in various applications within the textile supply chain, primarily in the manufacturing of textile machinery and equipment. It is utilized for components such as shafts, bearings, gears, and springs, which are crucial for the smooth functioning and efficiency of textile machinery. Special steel's high strength, durability, and resistance to wear and corrosion make it an ideal material for these demanding applications. Additionally, special steel may also be employed in the production of textile cutting tools and needles, further enhancing the quality and precision of textile products.

Q:What are the main characteristics of heat-resistant steel?: Heat-resistant steel, known as high-temperature steel as well, is an alloy with specific properties that enable it to endure extreme temperatures without sacrificing its mechanical strength and integrity. The primary features of heat-resistant steel are as follows: 1. Thermal fatigue resistance: Heat-resistant steel is designed to endure cyclic heating and cooling without developing cracks or fractures. This characteristic allows it to maintain its structural integrity, even in environments with rapid temperature fluctuations. 2. Exceptional creep resistance: Creep refers to the gradual deformation that occurs in a material when exposed to high temperatures over an extended period. Heat-resistant steel exhibits exceptional resistance to creep, ensuring that it retains its shape and strength even under prolonged heat exposure. 3. Preservation of mechanical properties at elevated temperatures: Unlike regular steel, which experiences a significant reduction in strength and hardness at high temperatures, heat-resistant steel retains its mechanical properties even under extreme conditions. This property makes it suitable for applications in industries such as aerospace, power generation, and oil and gas. 4. Resistance to oxidation and corrosion: Heat-resistant steel possesses a high resistance to oxidation and corrosion at elevated temperatures. It forms a protective oxide layer on its surface, preventing the underlying material from being attacked by oxygen or other corrosive elements. This property enhances the longevity and reliability of components made from heat-resistant steel. 5. Excellent thermal conductivity: Heat-resistant steel exhibits outstanding thermal conductivity, allowing it to efficiently transfer heat away from its surface. This feature proves particularly beneficial in applications where heat dissipation is crucial, such as in heat exchangers and furnace components. 6. Minimal thermal expansion: Heat-resistant steel has a relatively low coefficient of thermal expansion, meaning it expands and contracts minimally when subjected to temperature changes. This characteristic ensures dimensional stability and reduces the risk of warping or distortion under thermal stress. In summary, the main characteristics of heat-resistant steel make it an ideal material for applications that involve exposure to high temperatures, such as furnace components, exhaust systems, gas turbines, and heat exchangers. Its ability to endure extreme heat while maintaining its structural integrity and mechanical properties make it a critical material in industries where temperature resistance is of utmost importance.

Q:Can special steel be used in marine applications?: Marine applications can indeed utilize special steel. This type of steel, also referred to as marine grade steel, is specifically engineered to endure the demanding conditions found in marine environments. It possesses exceptional qualities, including heightened resistance to corrosion, increased strength, and enhanced durability, which render it suitable for a wide range of marine applications. The construction of ships, offshore structures, and marine equipment commonly employs special steel. Its capacity to withstand corrosion from saltwater, chemicals, and other environmental factors makes it an excellent choice for marine applications. Additionally, special steel finds use in the production of propellers, shafts, and other components that necessitate high tensile strength and fatigue resistance. All in all, special steel proves to be a dependable and efficient material for marine applications due to its unique properties and ability to withstand the challenges presented by the marine environment.

Q:What are the different methods for improving the wear resistance of special steel?: There are several methods that can be employed to enhance the wear resistance of special steel. These methods include: 1. Alloying: By adding specific alloying elements to the steel composition, such as chromium, vanadium, or molybdenum, the wear resistance can be significantly improved. These alloying elements form carbides within the steel matrix, which increase hardness and provide resistance against wear. 2. Heat treatment: Special steels can undergo various heat treatment processes, such as quenching and tempering, to enhance their wear resistance. Quenching involves rapidly cooling the steel from high temperatures to increase hardness, while tempering is performed to relieve internal stresses and improve toughness. 3. Surface coatings: Applying specialized coatings on the surface of the steel can greatly improve wear resistance. Common coating methods include thermal spray coating, electroplating, and physical vapor deposition. These coatings create a protective layer that resists wear and reduces friction. 4. Shot peening: This mechanical surface treatment involves bombarding the steel surface with small spherical particles, called shot, at high velocities. The impact of the shot induces compressive stress on the surface, which enhances the material's resistance to wear and fatigue. 5. Nitriding: This process involves diffusing nitrogen into the surface of the steel at elevated temperatures. Nitrogen forms nitrides, which significantly increase surface hardness and wear resistance. 6. Cryogenic treatment: By subjecting the steel to extremely low temperatures, typically below -100 degrees Celsius (-148 degrees Fahrenheit), the material undergoes a structural transformation that increases its wear resistance. This process helps to refine the grain structure and improve the material's toughness. 7. Grain refinement: By employing methods like severe plastic deformation or specialized casting techniques, the grain size of the steel can be reduced. Smaller grain sizes result in increased hardness and wear resistance due to improved dislocation movement and reduced grain-boundary sliding. It is important to note that the choice of method for improving wear resistance depends on factors such as the specific application, budget, and desired level of improvement. A combination of these methods may also be utilized to achieve optimal wear resistance in special steel.

Q:Can special steel be used in the packaging industry?: Yes, special steel can be used in the packaging industry. Special steel, such as stainless steel or high-strength steel, offers excellent durability, corrosion resistance, and strength properties. These characteristics make it suitable for manufacturing various packaging materials and equipment, including containers, drums, cans, and machinery. Additionally, special steel's versatility allows for customization and adaptation to meet specific packaging requirements, making it a preferred choice in the industry.

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