DIN 17223 GRADE A B C D High Carbon Hot Rolled Spring Steel Wire Rod

DIN 17223 GRADE A B C D High Carbon Hot Rolled Spring Steel Wire Rod System 1

DIN 17223 GRADE A B C D High Carbon Hot Rolled Spring Steel Wire Rod System 2

DIN 17223 GRADE A B C D High Carbon Hot Rolled Spring Steel Wire Rod System 3

DIN 17223 GRADE A B C D High Carbon Hot Rolled Spring Steel Wire Rod System 4

DIN 17223 GRADE A B C D High Carbon Hot Rolled Spring Steel Wire Rod

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Specification

Type:

Carbon Steel

Shape:

Steel Wire Rod

DIN 17223 GRADE A B C D High Carbon Hot Rolled Spring Steel Wire Rod

Specification

Standards:	DIN 17223-1 Round Steel Wire For Springs
	DIN EN 10270-1 Steel Wire For Mechanical Springs
	GB 3206-82 Carbon Constructional Quality Steel Wire
	JIS G 3521-1991 Hard Drawn Steel Wire
	GB 4357-89 Carbon Spring Steel Wire
	YB/T 5220-93 Carbon Steel Wire For Non-Mechanical Springs
Steel Grade:	30MnSi, SWRH62A,SWRH62B, SAE1060, SAE1065, 65Mn, SAE1070, SAE1075,SWRH72A, SWRH72B, SWRH77A, SWRH77B, SAE1080,SWRH82A, SWRH82B,C82DA.
Wire Rod:	Shagang Steel Wire Rod
Wire Diameter:	0.20mm-12.50mm
MOQ:	25 TON
Coil weight:	20-1200KG
Delivery time :	Within 7 days after receiving your deposite or L/C at sight
Payment term:	T/T or L/C at sight
FCL weight:	20-27 tons (20’GP)
Package:	in coil, with carrier, hard paper Z2,Z3,ect...
Sample:	Available for further evaluation
Usages:	Mechanical Equipment, Engineering Vehicle, Motor Vehicle, Motorcycle, Accumulator Car, Bicycle, Fitness Equipment, Elevator, Steel Wire Screen, Mattress And Sofa, Umbrella Frame, Electronic Products, ect.
Spring Usages:	compression spring, torsion spring, extension spring, agricultural machines, die springs, strip & wire forming springs.

Chemical Composition

Grade	C %	Si %	Mn %	P %	S %
SAE1005	0.06 max	0.10-0.25	0.35 max	0.030 max	0.030 max
SAE1006	0.08 max	0.10-0.25	0.25-0.40	0.030 max	0.030 max
SAE1008	0.10 max	0.10-0.25	0.30-0.50	0.030 max	0.030 max
SAE1010	0.08-0.13	0.10-0.25	0.30-0.60	0.030 max	0.030 max
SAE 1015	0.12-0.19	0.17-0.37	0.35-0.65	0.035 max	0.030 max
SAE1016	0.13-0.18	0.10-0.25	0.30-0.60	0.030 max	0.030 max
15MN	0.13-0.18	0.10-0.25	0.60-0.90	0.030 max	0.030 max
SAE1020	0.18-0.23	0.10-0.25	0.30-0.60	0.030 max	0.030 max
20Mn	0.18-0.23	0.10-0.25	0.60-0.90	0.030 max	0.030 max
SAE 1025	0.22-0.30	0.17-0.37	0.50-0.80	0.035 max	0.035 max
Q 195	0.06-0.12	0.25-0.50	0.30 max	0.050 max	0.045 max
Q235	0.22 max	0.30 max	0.55 max	0.045 max	0.050 max
SAE 1030	0.28-0.34	0.10-0.25	0.30-0.60	0.030 max	0.030 max
30Mn	0.28-0.34	0.10-0.25	0.60-0.90	0.030 max	0.030 max
SWRH 32	0.29-0.36	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SAE 1035	0.32-0.40	0.17-0.37	0.50-0.80	0.035 max	0.035 max
SWRH 37	0.34-0.41	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH42A	0.39-0.46	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH42B	0.39-0.46	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SWRH47A	0.44-0.51	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SAE1040/ 40#	0.37-0.45	0.17-0.37	0.30-0.60	0.030 max	0.030 max
SAE1045/ 45#	0.40-0.50	0.10-0.25	0.30-0.60	0.030 max	0.030 max
SWRH47B	0.44-0.51	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SAE 1050	0.47-0.55	0.17-0.37	0.50-0.80	0.035 max	0.035 max
SWRH52A	0.49-0.56	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH52B	0.49-0.56	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SWRH57A	0.54-0.61	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH57B	0.54-0.61	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SAE 1055	0.52-0.60	0.17-0.37	0.50-0.80	0.035 max	0.035 max
SAE1060/ 60#	0.55-0.65	0.10-0.25	0.30-0.60	0.030 max	0.030 max
SWRH62A	0.59-0.66	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH62B	0.59-0.66	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SWRH67A	0.64-0.71	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH67B	0.64-0.71	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SAE1070/ 70#	0.65-0.75	0.10-0.25	0.30-0.60	0.030 max	0.030 max
SAE 1075	0.72-0.80	0.17-0.37	0.30-0.60	0.035 max	0.035 max
SWRH72A	0.69-0.76	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH72B	0.69-0.76	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SWRH77A	0.74-0.81	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH77B	0.74-0.81	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SAE1080/ 80#	0.75-0.88	0.10-0.25	0.60-0.90	0.030 max	0.030 max
SWRH82A	0.79-0.86	0.15-0.35	0.30-0.60	0.030 max	0.030 max
SWRH82B	0.79-0.86	0.15-0.35	0.60-0.90	0.030 max	0.030 max
SAE 1080	0.75-0.88	0.10-0.25	0.60-0.90	0.030 max	0.030 max
SAE 1085	0.82-0.90	0.17-0.37	0.50-0.80	0.035 max	0.035 max
1215/SUM23	0.05-0.16	0.15 max	0.70-1.20	0.05-0.10	0.10-0.35

Company Information

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.

After-sale service	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.
After-sale service	For any problem, please kindly contact us at any your convenient time, we’ll reply you in our first priority within 24 hours
Advantages	Industry experience over 20 years.
	Shipment of goods -More than 70 countries worldwide.
	The most convenient transport and prompt delivery.
	Competitive price with best service.
	High technical production line with top quality products.
	High reputation based on best quality products.

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DIN 17223 GRADE A B C D High Carbon Hot Rolled Spring Steel Wire Rod

FAQ

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Q: How does special steel perform in high-pressure environments?: Special steel performs exceptionally well in high-pressure environments due to its superior strength, durability, and resistance to corrosion. Its unique composition and advanced manufacturing processes enable it to withstand extreme pressures, preventing deformation and maintaining structural integrity. Additionally, special steel's high tensile strength allows it to handle the immense stress and pressure without compromising its performance or safety.

Q: What is the purpose of annealing in special steel production?: The purpose of annealing in special steel production is to improve the mechanical properties and overall quality of the steel. Annealing is a heat treatment process in which the steel is heated to a specific temperature and then slowly cooled, typically in a controlled atmosphere. This process helps to relieve any internal stresses or strains that may have developed during previous manufacturing processes such as rolling or forging. During annealing, the steel's microstructure undergoes changes, resulting in a more refined and homogeneous material. The process allows for the redistribution of atoms, which helps to eliminate defects, improve grain structure, and enhance the steel's toughness, ductility, and machinability. Annealing also helps to reduce the hardness of the steel, making it easier to work with and shape. It can also improve the steel's resistance to cracking and enhance its resistance to corrosion or other environmental factors. Additionally, annealing can help to achieve desired physical properties such as increased hardness or improved magnetic properties in certain special steel alloys. Overall, the purpose of annealing in special steel production is to optimize the steel's properties and ensure it meets the specific requirements of its intended application, whether it be in industries such as automotive, aerospace, or manufacturing.

Q: What are the different types of case-hardening steel?: There are several different types of case-hardening steels, including carburizing steel, nitriding steel, and cyaniding steel. These steels are specifically designed to undergo a surface-hardening process, where the outer layer of the steel is made harder while maintaining a tough core. Carburizing steel is treated with carbon-rich materials to increase its carbon content, while nitriding steel is exposed to nitrogen to form a hard surface layer. Cyaniding steel is treated with cyanide salts to produce a hard and wear-resistant surface. Each type of case-hardening steel has its own specific properties and applications.

Q: What are the challenges in machining high-speed special steel?: Several challenges arise when machining high-speed special steel due to its unique properties and characteristics. Its extreme hardness presents one of the main obstacles, making cutting and shaping difficult. High-speed special steel typically has a high carbon content and undergoes heat treatment to enhance its hardness, resulting in increased wear on cutting tools. The increased hardness of this steel also leads to elevated heat generation during the machining process. This heat can cause thermal distortion and impact the dimensional accuracy of the final product. To counteract this, specialized cooling techniques and cutting tools with advanced coatings must be used to dissipate heat and maintain stability. Another challenge is the brittleness of high-speed special steel. It tends to have low toughness and is susceptible to cracking and chipping during machining operations. To minimize the risk of tool failure and excessive stress, careful selection of cutting parameters such as cutting speed, feed rate, and depth of cut is necessary. Furthermore, high-speed special steel often contains alloying elements like tungsten, vanadium, and cobalt, which can further complicate the machining process. While these elements increase the strength and wear resistance of the steel, they also make it more challenging to machine. Effective machining of these alloys and achieving desired surface finishes requires specialized tool materials and cutting strategies. Additionally, the cost of high-speed special steel is often significantly higher than that of conventional steels, adding to the challenges of machining. The high tooling costs associated with the cutting tools required for machining this steel can be a substantial investment. Overall, machining high-speed special steel necessitates advanced cutting techniques, specialized tooling, and careful consideration of cutting parameters to overcome the challenges posed by its extreme hardness, brittleness, and alloying elements.

Q: How is mold steel used in the production of plastic injection molds?: Mold steel is commonly used in the production of plastic injection molds due to its high durability and resistance to wear and tear. It is used to create the main components of the mold, such as the cavity and core, which are responsible for shaping the plastic material. Mold steel provides the necessary hardness and strength to withstand the high pressures and temperatures involved in the injection molding process. Additionally, its excellent machinability allows for precise and intricate mold designs, ensuring the production of high-quality plastic parts.

Q: What are the applications of special steel in aerospace engineering?: Special steel is widely used in aerospace engineering for various applications. It is used to manufacture critical components such as turbine blades, landing gear, and structural parts that require high strength, toughness, and resistance to extreme temperatures. Special steel alloys, such as stainless steel and nickel-based alloys, are used due to their excellent corrosion resistance, heat resistance, and ability to withstand harsh environments. These materials ensure the safety and reliability of aircraft, enabling them to operate under demanding conditions and meet stringent performance requirements.

Q: What are the different methods of surface tumbling for special steel?: There are several methods of surface tumbling that can be used for special steel. These methods include barrel tumbling, vibratory tumbling, and centrifugal tumbling. Barrel tumbling is a common method used for surface finishing of special steel. In this process, the steel parts are placed in a rotating barrel along with abrasive media. The barrel then rotates, causing the steel parts to tumble and come into contact with the abrasive media. This action helps to remove any burrs, sharp edges, or surface imperfections from the steel parts, resulting in a smoother and more polished surface finish. Vibratory tumbling is another method that can be used for surface tumbling of special steel. In this process, the steel parts are placed in a vibrating container along with abrasive media. The vibration causes the steel parts to move and come into contact with the abrasive media, effectively removing any surface imperfections. Vibratory tumbling is often preferred for delicate or complex-shaped steel parts, as it provides a gentler action compared to barrel tumbling. Centrifugal tumbling is a specialized method that utilizes centrifugal force to achieve surface tumbling of special steel. In this process, the steel parts are placed inside a rotating drum, which is then spun at a high speed. The centrifugal force causes the steel parts to move and come into contact with the abrasive media, resulting in the removal of any surface imperfections. Centrifugal tumbling is often used for smaller or more intricate steel parts, as it allows for precise control over the tumbling action. Overall, these different methods of surface tumbling provide various options for achieving the desired surface finish for special steel. The choice of method depends on factors such as the size, shape, and delicacy of the steel parts, as well as the desired level of surface finish.

Q: What is the significance of phosphorus in special steel?: Phosphorus plays a vital role in the production of special steel due to its numerous advantageous properties. To begin with, it acts as a deoxidizer during the steel manufacturing process, thereby eliminating impurities like oxygen. This results in an overall improvement in the quality and purity of the steel, making it more resistant to corrosion and enhancing its mechanical properties. Additionally, phosphorus has the ability to enhance the strength and hardness of the steel, making it ideal for applications that demand durability and resistance to wear. It also aids in improving the steel's machinability, facilitating easier shaping and processing. Moreover, phosphorus contributes to the steel's capacity to retain its strength even at high temperatures, making it suitable for use in environments like power plants or aerospace industries. However, it is crucial to control the concentration of phosphorus within certain limits as excessive levels can have detrimental effects. A high phosphorus content can lead to brittleness, reduced toughness, and decreased weldability of the steel. Therefore, it is necessary to carefully consider and balance the beneficial effects of phosphorus with its potential drawbacks. In conclusion, the significance of phosphorus in special steel lies in its ability to enhance the quality, purity, strength, hardness, machinability, and high-temperature performance of the steel. By controlling the phosphorus content within appropriate limits, manufacturers can produce special steel with improved properties that meet the specific requirements of various industrial applications.

Q: What are the environmental considerations associated with special steel production?: The production of special steel entails various environmental factors to consider due to its resource-intensive nature and the emissions produced throughout the manufacturing process. One primary environmental factor associated with special steel production involves the extraction of raw materials. The production of special steel necessitates specific alloys and additives, typically requiring the extraction of rare or valuable metals. The mining of these materials can result in significant environmental consequences, such as habitat destruction, soil erosion, water pollution, and the release of toxic substances. Another factor to consider is the energy consumption during the production process. Special steel production includes energy-intensive stages like melting, refining, and shaping. These processes frequently rely on fossil fuels, contributing to greenhouse gas emissions and air pollution. Moreover, the high temperatures required for steel production result in substantial carbon dioxide emissions, a leading cause of climate change. Water usage also poses a concern in special steel production. The production process demands a substantial quantity of water for cooling, cleaning, and lubrication. If not managed appropriately, this can lead to water scarcity and pollution. The effluents produced during production may contain heavy metals, acids, and other pollutants, capable of harming aquatic ecosystems if not adequately treated. Waste generation is another environmental aspect to consider. Special steel production generates various types of waste, including slag, dust, and sludge. These waste materials may contain heavy metals, toxins, and other pollutants. Proper disposal or treatment of these wastes is crucial to prevent pollution of soil, water, and air. Lastly, the transportation of raw materials and finished products in special steel production can contribute to carbon emissions and air pollution. The long-distance shipping of raw materials and finished steel products adds to the overall environmental impact of the industry. In conclusion, special steel production presents numerous environmental considerations, including raw material extraction, energy consumption, water usage, waste generation, and transportation. To mitigate these impacts, companies should prioritize sustainable sourcing of raw materials, invest in energy-efficient technologies, promote water conservation and treatment practices, manage and minimize waste generation, and explore cleaner transportation options.

Q: What is the significance of alloying elements in special steel?: Alloying elements play a crucial role in special steel as they enhance the mechanical properties, corrosion resistance, and overall performance of the steel. These elements are added in specific proportions to alter the microstructure and create desired properties such as increased strength, hardness, toughness, and heat resistance. Additionally, alloying elements can improve the steel's ability to withstand extreme conditions, such as high temperatures or corrosive environments. Overall, the presence of alloying elements in special steel allows for the production of tailor-made materials that meet specific application requirements in industries such as automotive, aerospace, and construction.

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