11SMnPb30 / 12l14 Free Cutting Steel Bar

11SMnPb30 / 12l14 Free Cutting Steel Bar System 1

11SMnPb30 / 12l14 Free Cutting Steel Bar System 2

11SMnPb30 / 12l14 Free Cutting Steel Bar System 3

11SMnPb30 / 12l14 Free Cutting Steel Bar System 4

11SMnPb30 / 12l14 Free Cutting 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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11SMnPb30 / 12l14 Free Cutting Steel Bar

Detailed Information of 11SMnPb30 / 12l14 Free Cutting 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 11SMnPb30 / 12l14 Free Cutting 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 11SMnPb30 / 12l14 Free Cutting 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.

11SMnPb30 / 12l14 Free Cutting 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 11SMnPb30 / 12l14 Free Cutting Steel Bar

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

Products Show

11SMnPb30 / 12l14 Free Cutting 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:Can special steel be used in the manufacturing of consumer goods?: Yes, special steel can be used in the manufacturing of consumer goods. Special steel, with its superior strength, durability, and corrosion resistance properties, can be utilized in various consumer products such as kitchen appliances, cutlery, watches, automotive parts, and electronics. Its use enhances the performance and longevity of these goods, making them more reliable and efficient for consumers.

Q:How does tungsten contribute to the properties of special steel?: Special steel greatly benefits from the inclusion of tungsten, which is a critical element that significantly impacts its properties. One of the key advantages of incorporating tungsten into steel lies in its ability to enhance strength and hardness. This is achieved through the formation of a solid solution with iron, resulting in a microstructure with fine grains that effectively increase overall toughness and wear resistance. Furthermore, tungsten plays a pivotal role in improving the high-temperature strength of special steel. Due to its high melting point, tungsten maintains its strength even under elevated temperatures, making it an ideal choice for applications that require resistance to heat and thermal stress. Consequently, special steel containing tungsten can be employed in environments with extreme temperatures, such as gas turbines, rocket nozzles, and cutting tools. Another crucial contribution of tungsten lies in enhancing the corrosion resistance of special steel. By forming stable carbides, tungsten provides a protective barrier against corrosion and erosion, effectively enhancing the durability and longevity of the steel. This is particularly invaluable in industries where the steel is exposed to corrosive environments, such as chemical processing, marine applications, and oil and gas exploration. Moreover, tungsten significantly aids in the machinability of special steel. It assists in reducing the occurrence of built-up edges during cutting operations, resulting in improved surface finish and prolonged tool life. This characteristic proves highly advantageous in industries that require precision machining, such as automotive, aerospace, and tool manufacturing. In conclusion, the presence of tungsten in special steel is of utmost importance as it enhances strength, hardness, high-temperature performance, corrosion resistance, and machinability. Its unique properties make it an indispensable component in the production of high-quality steel utilized across various industries.

Q:How is special steel used in the construction manufacturing process?: Special steel is commonly used in the construction manufacturing process due to its unique properties such as high strength, durability, and resistance to corrosion. It is used for various applications, including structural components, reinforcement bars, and fasteners. Special steel enhances the overall structural integrity of buildings, bridges, and other construction projects, ensuring their longevity and safety.

Q:How does special steel contribute to the automotive sector?: Special steel contributes to the automotive sector by offering enhanced strength, durability, and resistance to wear and tear. It is used in various critical components such as engine parts, suspension systems, and safety features, improving performance, safety, and overall reliability of vehicles. Additionally, special steel enables the development of lightweight designs, aiding in fuel efficiency and reducing emissions.

Q:What are the different methods for improving the electrical conductivity of special steel?: There are several methods for improving the electrical conductivity of special steel. One common method is through the addition of alloying elements such as copper or silver. These elements can help to increase the number of free electrons in the steel, thereby improving its electrical conductivity. Another method is by subjecting the steel to heat treatment processes such as annealing or normalizing. These heat treatments can help to refine the microstructure of the steel, reducing the presence of impurities and enhancing the movement of electrons. Surface treatments, such as electroplating or coating the steel with a conductive material like copper or nickel, can also improve its electrical conductivity. These treatments create a conductive layer on the surface of the steel, enabling better electron flow. Additionally, refining the grain size of the steel through processes like grain boundary engineering or severe plastic deformation can improve its electrical conductivity. Smaller grain sizes allow for more efficient electron movement and reduce scattering, leading to enhanced conductivity. Lastly, proper cleaning and removal of any surface contaminants or oxides can significantly improve the electrical conductivity of special steel. By removing impurities and ensuring a clean surface, the steel can have better contact and conductivity. It is important to note that the specific method used to improve the electrical conductivity of special steel will depend on the intended application and the desired level of conductivity. Different industries and applications may require different approaches to achieve the desired results.

Q:How is special steel used in the construction industry?: Special steel is used in the construction industry for a variety of purposes such as reinforcing concrete structures, constructing high-rise buildings, manufacturing heavy machinery, and producing durable and corrosion-resistant components. It provides strength, flexibility, and longevity to construction projects, ensuring their safety and structural integrity.

Q:What are the properties of nickel-based alloys?: Nickel-based alloys possess several key properties including high corrosion resistance, excellent heat resistance, good mechanical strength, and a combination of high toughness and durability. They also exhibit good electrical and thermal conductivity, making them suitable for various applications in industries such as aerospace, chemical processing, and power generation. Additionally, nickel-based alloys have the ability to maintain their properties at elevated temperatures, making them ideal for use in extreme environments.

Q:What are the common challenges in heat treating special steel?: Heat treating special steel can present a variety of challenges. One common challenge is achieving the desired hardness and strength while maintaining the desired microstructure. Special steels often require specific heat treatment processes, such as quenching and tempering, to achieve the desired mechanical properties. However, the high alloy content of these steels can lead to difficulties in achieving uniform heat distribution and controlling the cooling rate during quenching, which in turn can result in inconsistent hardness and potential distortion. Another challenge in heat treating special steel is managing residual stresses. During the heating and cooling process, differential thermal expansion and contraction can cause stress to build up within the steel, leading to potential cracking or distortion. Special care must be taken to minimize these stresses through proper heat treatment techniques, such as preheating and controlled cooling rates. Special steels often have stringent cleanliness requirements, as impurities or non-metallic inclusions can negatively impact their mechanical properties. Ensuring the cleanliness of the steel prior to heat treatment can be challenging and may require additional steps such as degreasing, pickling, or using protective atmospheres during heat treatment. Furthermore, some special steels are highly sensitive to overheating, which can lead to grain growth and loss of desired properties. Precise temperature control and monitoring are crucial to prevent overheating and ensure consistent results. Lastly, special steels may have specific time-temperature transformation (TTT) and continuous cooling transformation (CCT) characteristics that need to be considered during heat treatment. Understanding and adhering to the appropriate heating and cooling cycles are essential for achieving the desired microstructure and properties. In summary, the common challenges in heat treating special steel include achieving the desired hardness and microstructure, managing residual stresses, ensuring cleanliness, preventing overheating, and adhering to specific time-temperature transformation characteristics. Overcoming these challenges requires expertise, precise control, and adherence to strict heat treatment protocols.

Q:How is special steel used in the manufacturing of machinery?: Special steel, with its unique properties that make it highly suitable for the manufacturing of machinery, is an essential component in this process. It refers to a category of steel alloys that have been specifically designed and developed to possess exceptional strength, durability, and resistance to wear and tear. In various applications within the manufacturing of machinery, special steel is commonly used. One primary use is in producing machine components requiring high strength and toughness, such as gears, shafts, bearings, and fasteners. These components endure heavy loads, high temperatures, and harsh operating conditions, necessitating the ability to withstand these stresses without failure or deformation. Special steel provides the required strength and toughness for ensuring the longevity and reliability of these machine parts. Furthermore, special steel is utilized in manufacturing cutting tools and dies. Cutting tools, including drills, milling cutters, and lathe tools, require excellent hardness and wear resistance to endure the forces and abrasion encountered throughout the machining process. Dies, on the other hand, are used for shaping or forming materials and necessitate high strength and hardness to endure repetitive pressure and deformation. Special steel offers the necessary properties to enhance the performance and lifespan of these cutting tools and dies. Moreover, special steel frequently finds application in constructing machine frames and structural components. Its strength and rigidity make it ideal for supporting heavy loads and maintaining overall machinery stability. By incorporating special steel into machine frame construction, manufacturers can ensure the structural integrity and durability of the machinery, which is crucial for safe and efficient operation. In conclusion, special steel plays a vital role in the manufacturing of machinery by providing the necessary strength, durability, and wear resistance for critical machine components, cutting tools, and structural elements. Its unique properties make it indispensable in producing high-performance machinery capable of enduring the demanding conditions of various industries.

Q:What are the different methods for tempering special steel?: There are different methods available for tempering special steel, each having its own advantages and considerations. Some commonly used methods for tempering special steel are: 1. Air Tempering: Special steel is heated to a specific temperature and allowed to cool in still air. This method is suitable for low alloy steels and results in uniform hardness throughout the steel. 2. Oil Tempering: Special steel is heated to a specific temperature and then rapidly cooled by quenching it in oil. This method is commonly used for tool steels as it provides a good balance between hardness and toughness. 3. Water Tempering: Similar to oil tempering, this method involves quenching the steel in water after heating it to a specific temperature. It leads to a harder steel due to faster cooling, but it may also increase brittleness. 4. Salt Bath Tempering: The steel is immersed in a molten salt bath at a specific temperature. This method ensures controlled and uniform heat transfer, resulting in consistent hardness throughout the steel. 5. Cryogenic Tempering: Steel is cooled to extremely low temperatures, often below -100°C (-148°F), using liquid nitrogen or helium. This method further reduces residual stresses and enhances wear resistance of the steel. It is important to consider various factors such as the type of steel, desired hardness, intended application, and the required balance between hardness and toughness when choosing a specific tempering method for special steel. Following proper heat treatment guidelines and seeking advice from experts is crucial to achieve optimal results for a particular steel alloy.

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