Grade Q235 Hot Rolled Steel Wire Rod in Coils

Grade Q235 Hot Rolled Steel Wire Rod in Coils System 1

Grade Q235 Hot Rolled Steel Wire Rod in Coils System 2

Grade Q235 Hot Rolled Steel Wire Rod in Coils System 3

Grade Q235 Hot Rolled Steel Wire Rod in Coils System 4

Grade Q235 Hot Rolled Steel Wire Rod in Coils

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 3 m.t.

Supply Capability:: 10000 m.t./month

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Grade Q235 Hot Rolled Steel Wire Rod in Coils

Detailed Information of the Grade Q235 Hot Rolled Steel Wire Rod in Coils

Name	Hot Rolled High Carbon Wire Rod
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

Chemical Composition of the Grade Q235 Hot Rolled Steel Wire Rod in Coils

Grade	Chemical Composition(%)
	C	Mn	Si	S	P	B
SAE1008	0.1max.	0.3~0.50	0.15max	0.050max	≤0.040	>0.0008
	Mechanical properties
	Yield strength(N/mm2)		Tensile strength(N/mm2)		Elongation(%)
	250-280		350-380		≥32

Company Introduction the Grade Q235 Hot Rolled Steel Wire Rod in Coils

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 Q235 Hot Rolled Steel Wire Rod in Coils

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.

Packaging & Delivery the Grade Q235 Hot Rolled Steel Wire Rod in Coils

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 Q235 Hot Rolled Steel Wire Rod in Coils

FAQ:

Are you a trader 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.
Why choose us?	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
What’s your featured services?
Where are your Market?	Covering more than 160 countries in the world

Q:What are the different methods of testing special steel for quality assurance?: There are several methods commonly used for testing special steel to ensure quality assurance. These methods include: 1. Chemical Analysis: This involves determining the composition of the steel by analyzing its chemical elements and their respective quantities. This helps to ensure that the steel meets the specified requirements and is free from any impurities. 2. Mechanical Testing: Mechanical testing assesses the strength, hardness, and other mechanical properties of the steel. Tensile tests, hardness tests, impact tests, and fatigue tests are some of the common mechanical tests performed on special steel. These tests help to evaluate the steel's performance under different conditions and ensure it meets the required standards. 3. Non-Destructive Testing (NDT): NDT techniques are used to detect any surface or internal defects in the steel without causing any damage. Magnetic particle testing, ultrasonic testing, radiographic testing, and dye penetrant testing are commonly employed methods for NDT. These tests are crucial in identifying any flaws that may compromise the steel's structural integrity. 4. Metallurgical Analysis: Metallurgical analysis involves the microscopic examination of the steel's microstructure to assess its quality. This analysis helps to identify any grain size variations, inclusions, or phase transformations that might affect the steel's performance. Metallography, optical microscopy, and electron microscopy are commonly used techniques for metallurgical analysis. 5. Corrosion Testing: Special steel is often exposed to harsh environments, making corrosion resistance a critical quality parameter. Corrosion testing evaluates the steel's resistance to corrosion in various conditions. Salt spray testing, electrochemical testing, and exposure to corrosive environments are some methods used for corrosion testing. 6. Dimensional Inspection: Dimensional inspection ensures that the special steel meets the specified dimensional requirements. This involves measuring the steel's dimensions, including length, width, thickness, and other critical dimensions, using calibrated instruments. By employing these various methods, manufacturers can thoroughly test special steel and ensure that it meets the required quality standards. This comprehensive testing helps to guarantee the performance, durability, and reliability of the steel in various applications.

Q:What are the applications of special steel in the railway industry?: Special steel has a wide range of applications in the railway industry. It is commonly used in the manufacturing of rails, which need to be durable and able to withstand heavy loads and constant wear and tear. Special steel is also used in the construction of railway bridges and tunnels, as it offers high strength and resistance to corrosion. Additionally, special steel is used in the production of various railway components such as wheels, axles, and couplers, ensuring safety and reliability in train operation.

Q:What are the different case hardening grades of special steel?: There are several different case hardening grades of special steel, each with its own unique properties and applications. Some of the most commonly used case hardening grades include: 1. 8620: This grade of steel is commonly used for gears, shafts, and other high-stress applications. It has excellent toughness and wear resistance, making it ideal for parts that require both strength and durability. 2. 9310: This grade is often used for aerospace applications due to its high strength and resistance to fatigue. It is commonly used for gears, bearings, and other components that require exceptional toughness and load-carrying capacity. 3. 4340: This grade is known for its high strength and hardenability. It is commonly used for parts that require high tensile strength and good impact resistance, such as crankshafts, connecting rods, and gears. 4. 20MnCr5: This grade is often used in the manufacturing of gears, camshafts, and other components that require high surface hardness and wear resistance. It is known for its excellent case-hardening properties and good core strength. 5. EN36C: Also known as 655M13, this grade is frequently used for making components that require high tensile strength, such as axles, shafts, and crankshafts. It has good hardenability and excellent toughness, making it suitable for heavy-duty applications. It is important to select the appropriate case hardening grade based on the specific application requirements, such as desired hardness, strength, and wear resistance. Consulting with a metallurgist or an expert in materials science can help ensure the right grade is chosen for a particular project.

Q:What are the different methods for improving the magnetic properties of special steel?: Improving the magnetic properties of special steel can be achieved through various methods. One effective approach is heat treatment, which involves subjecting the steel to specific heating and cooling processes. This alters the atomic structure of the steel, enhancing its magnetic properties. For example, annealing the steel at high temperatures and slowly cooling it can create a fine-grained microstructure, resulting in improved magnetic performance. Another method is alloying, where certain elements like nickel, cobalt, or aluminum are added to the steel. Even small amounts of these alloying elements can significantly enhance the steel's magnetic characteristics, increasing its saturation magnetization and improving coercivity. Cold working, also known as cold deformation, is another technique that can improve the steel's magnetic properties. By subjecting the steel to mechanical stress at low temperatures, dislocations and defects are formed within its crystal structure, leading to improved magnetization, permeability, and reduced hysteresis losses. Grain orientation is yet another method to improve the magnetic properties of special steel. This involves aligning the grains of the steel in a specific direction through processes like hot rolling or magnetic annealing. This alignment results in anisotropic magnetic properties, meaning the steel will exhibit different magnetic characteristics depending on the direction of the applied magnetic field. Surface treatments can also be utilized to enhance the magnetic properties of special steel. Coatings such as electroplating, electroless plating, or chemical vapor deposition can modify the steel's surface, improving its magnetic performance. These treatments reduce eddy current losses, enhance corrosion resistance, and increase magnetic permeability. It is important to consider specific requirements and desired characteristics when choosing a method to improve the magnetic properties of special steel. Each method has its own advantages and limitations, and factors like cost, feasibility, and desired magnetic performance should be taken into account.

Q:What are the factors that affect the corrosion resistance of special steel?: The factors that affect the corrosion resistance of special steel include the composition and content of alloying elements, surface finish and treatment, environmental conditions such as temperature, humidity, and exposure to chemicals, as well as the presence of protective coatings or inhibitors. Additionally, the manufacturing process and heat treatment can also influence the corrosion resistance of special steel.

Q:How does special steel contribute to the aerospace fastener industry?: Special steel plays a crucial role in the aerospace fastener industry by providing high strength, durability, and resistance to extreme conditions. Aerospace fasteners are essential components that hold various parts of an aircraft together, ensuring structural integrity and safety during flight. The use of special steel in manufacturing these fasteners allows them to withstand the demanding requirements of the aerospace industry. One of the key contributions of special steel to the aerospace fastener industry is its ability to maintain strength at high temperatures. Aircraft engines operate at extremely high temperatures, and fasteners made from special steel can withstand these conditions without losing their integrity. This is essential for ensuring the reliability and safety of the aircraft, as any failure of the fasteners could lead to catastrophic consequences. In addition to temperature resistance, special steel also offers exceptional strength and corrosion resistance. Aerospace fasteners made from special steel can withstand the tremendous forces and stresses experienced during flight, ensuring that the components remain securely fastened together. Moreover, they are highly resistant to corrosion, which is crucial considering the exposure of aircraft to harsh environmental conditions, including moisture and chemicals. The unique properties of special steel also enable the production of lightweight fasteners without compromising their strength. Weight reduction is a primary concern in the aerospace industry as it directly impacts fuel efficiency and overall performance. By utilizing special steel, manufacturers can design fasteners that are both strong and lightweight, contributing to the overall weight reduction efforts of modern aircraft. Furthermore, special steel allows for the production of fasteners with precise dimensions and tight tolerances. This is essential for achieving a secure fit between components, minimizing vibrations and potential damage caused by movement during flight. The accuracy and reliability of special steel fasteners are crucial for maintaining the structural integrity and safety of the aircraft. In conclusion, special steel significantly contributes to the aerospace fastener industry by providing the necessary strength, durability, temperature resistance, and corrosion resistance needed for aircraft applications. Its unique properties enable the production of lightweight yet robust fasteners, ensuring the structural integrity and safety of modern aircraft. Without special steel, the aerospace industry would face significant challenges in meeting the demanding requirements of aviation.

Q:How does special steel perform in corrosion fatigue conditions?: Special steel is known for its exceptional performance in corrosion fatigue conditions. Corrosion fatigue refers to the combined effect of corrosion and cyclic loading, which can significantly degrade the mechanical properties of materials over time. However, special steel is specifically designed and alloyed to resist corrosion and maintain its structural integrity under these challenging conditions. The high corrosion resistance of special steel is achieved through the addition of alloying elements such as chromium, nickel, and molybdenum. These elements form a protective oxide layer on the surface of the steel, which acts as a barrier against corrosive agents. This oxide layer effectively prevents the penetration of moisture, oxygen, and other corrosive substances, reducing the likelihood of corrosion initiation and propagation. Furthermore, special steel exhibits excellent fatigue strength, allowing it to withstand cyclic loading without premature failure. Its unique microstructure, which is usually martensitic or austenitic, provides superior mechanical properties and resistance to fatigue crack initiation and propagation. This ensures that the material can endure repeated loading cycles without compromising its structural integrity. In addition to its corrosion resistance and fatigue strength, special steel also possesses good ductility and toughness. These properties are crucial in corrosion fatigue conditions as they enable the material to absorb and redistribute stress effectively, preventing localized stress concentrations that can lead to crack formation and propagation. Overall, special steel's exceptional performance in corrosion fatigue conditions can be attributed to its high corrosion resistance, fatigue strength, ductility, and toughness. These properties make it an ideal choice for applications where materials are subjected to cyclic loading and corrosive environments, such as offshore structures, marine equipment, and oil and gas pipelines.

Q:How does special steel contribute to reducing product defects during manufacturing?: Special steel contributes to reducing product defects during manufacturing by offering enhanced mechanical properties and superior strength. This type of steel is specifically designed to meet the requirements of demanding applications, making it less prone to deformation, wear, or failure. Its exceptional hardness and toughness properties enable manufacturers to produce components with precise dimensions and high accuracy, resulting in reduced defects. Additionally, special steel's excellent corrosion resistance prevents rusting and deterioration, ensuring the longevity and reliability of the manufactured products.

Q:What are the different mining grades of special steel?: The different mining grades of special steel can vary depending on the specific composition and properties required for different applications. Some common mining grades include stainless steel, tool steel, high-speed steel, and alloy steel. Each grade has unique characteristics that make it suitable for specific mining operations, such as resistance to corrosion, high strength, hardness, and wear resistance.

Q:How does special steel contribute to the electrical industry?: Special steel plays a crucial role in the electrical industry by contributing to the production of various components and equipment necessary for generating, transmitting, and distributing electricity. One important application of special steel in the electrical industry is in the manufacturing of power transformers. These transformers are essential for stepping up or stepping down the voltage levels in the electricity grid, enabling efficient transmission and distribution of electricity. Special steel, with its high strength, durability, and excellent magnetic properties, is used to construct the transformer cores. The high magnetic permeability of special steel ensures minimal energy loss during the transformation process, resulting in more efficient power transmission. Furthermore, special steel is also extensively used in the production of electrical conductors, such as wires and cables. These conductors are responsible for carrying electricity from power plants to various end-use applications. Special steel wires are known for their high conductivity and resistance to corrosion, making them ideal for transmitting electricity over long distances with minimal energy loss. Additionally, special steel is used in the manufacturing of electrical connectors and terminals, ensuring secure and reliable connections between different electrical components. In the electrical industry, special steel is also employed in the fabrication of electrical motors and generators. The high strength and magnetic properties of special steel contribute to the efficient conversion of electrical energy into mechanical energy, enabling the smooth operation of motors and generators. Moreover, special steel is used for manufacturing electrical switches, circuit breakers, and other protective devices, ensuring the safe and reliable functioning of electrical systems. Overall, special steel plays a vital role in the electrical industry by facilitating the production of essential components and equipment necessary for the generation, transmission, and distribution of electricity. Its unique properties contribute to improved energy efficiency, reliability, and safety in electrical systems, making it an indispensable material in this industry.

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