Special Steel 40cr Steel Mould Steel Bar

Special Steel 40cr Steel Mould Steel Bar

Ref Price:: $300.00 - 500.00 / m.t.

Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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The details of our Steel

1. Produce Standard: as the GB, AISI, ASTM, SAE, EN, BS, DIN, JIS Industry Standard

2. Produce processes: Smelt Iron -EAF smelt Billet - ESR smelt Billet -Hot rolled or forged get the steel round bar and plate

3. Heat treatment:

Normalized / Annealed / Quenched+Tempered

4. Quality assurance:

All order we can received Third party inspection, You can let SGS, BV,.. and others test company test and inspect our products before Goods shipping.

Product information

Chemical Composition(GB)%

C	Si	Mn	Cr	Ni
0.37-0.44	0.17-0.37	0.50-0.80	0.80-1.10	≤0.30

Heat Treatment

Item	Temperature ℃	Hardness
Normalizing	850-870	179-229HB

Characterstics: Which has the best comprehensive mechanical properties

Applications

1.Can be used for drawing die and plastic mould
2.Can be used for middle and small punch

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Special Steel 40cr Steel Mould Steel Bar

Shipping

1. FedEx/DHL/UPS/TNT for samples, Door-to-Door;

2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;

3. Customers specifying freight forwarders or negotiable shipping methods!

Delivery Time: 3-7 days for samples; 5-25 days for batch goods.

Payment Terms

1.Payment: T/T, L/C, Western Union, MoneyGram,PayPal; 30% deposits; 70% balance before delivery.

2.MOQ: 1pcs

3.Warranty : 3 years

4.Package Informations: 1) EXPORT, In 20 feet (GW 25 ton) or 40 feet Container (GW 25 ton)

2)as customer's requirement

Why choose us?

(1) The leading exporter in China special steel industry.

(2) Large stocks for various sizes, fast delivery date.

(3) Good business relationship with China famous factories.

(4) More than 7 years steel exporting experience.

(5) Good after-sales service guarantee.

Q:How is special steel tested for quality?: Special steel is tested for quality through a series of rigorous examinations and tests. These include visual inspections, chemical composition analysis, mechanical property testing, and non-destructive testing methods such as ultrasonic testing and magnetic particle testing. These tests ensure that the special steel meets the necessary standards and specifications for its intended use, guaranteeing its quality and performance.

Q:What are the main applications of special steel in the telecommunications sector?: Special steel is commonly used in the telecommunications sector for various applications. One of the main uses of special steel in this industry is for the manufacturing of transmission towers and antenna structures. These steel structures provide the necessary support and stability for telecommunication equipment, ensuring reliable signal transmission. Additionally, special steel is also utilized in the production of cables and wires, which are crucial for transmitting data and electricity in telecommunication networks. The high strength and durability of special steel make it ideal for withstanding the harsh outdoor conditions that telecommunication infrastructure often faces.

Q:What are the properties of creep-resistant steel?: Creep-resistant steel is known for its ability to withstand high temperatures and prolonged exposure to stress without significant deformation. It has a high creep strength, which means it can resist the gradual elongation and deformation that occurs under constant load or stress over time. This type of steel also exhibits excellent resistance to rupture, corrosion, and oxidation at elevated temperatures. Additionally, it maintains its mechanical properties, such as hardness and tensile strength, even in extreme conditions, making it ideal for applications in power generation, aerospace, and other industries where high temperatures and stress are present.

Q:What are the requirements for special steel used in telecommunications infrastructure?: The requirements for special steel used in telecommunications infrastructure include: 1. High strength: Special steel used in telecommunications infrastructure should have high tensile strength to withstand the heavy loads and stresses imposed on the structures. This ensures that the infrastructure remains stable and secure. 2. Corrosion resistance: As telecommunications infrastructure may be exposed to various environmental conditions, including moisture and chemicals, it is crucial for the special steel to have excellent corrosion resistance. This helps to protect the infrastructure from rust and deterioration, extending its lifespan. 3. Good weldability: Special steel used in telecommunications infrastructure should have good weldability to facilitate the construction and installation processes. This allows for easy joining of different components, ensuring a strong and reliable structure. 4. Durability: The special steel should be able to withstand the harsh conditions it may be exposed to over its lifetime. It should have high durability to resist fatigue, impact, and other external factors that could potentially compromise the integrity of the infrastructure. 5. Lightweight: While strength is important, special steel used in telecommunications infrastructure should also be lightweight. This enables easier transportation, handling, and installation of the components, reducing costs and time required for construction. 6. Fire resistance: Special steel used in telecommunications infrastructure should have good fire resistance properties to prevent the spread of fire and ensure the safety of the infrastructure and the surrounding areas. 7. Electrical conductivity: Telecommunications infrastructure often requires electrical grounding and bonding. Therefore, special steel used in these applications should have good electrical conductivity properties to ensure effective grounding and minimize electrical interference. Meeting these requirements ensures that the special steel used in telecommunications infrastructure can provide the necessary structural integrity, longevity, and performance to support reliable and efficient communication networks.

Q:Can special steel be used in the production of cutting tools?: Yes, special steel can be used in the production of cutting tools.

Q:How does special steel contribute to reducing product defects?: Special steel contributes to reducing product defects by offering enhanced properties such as increased strength, durability, and corrosion resistance. These properties ensure that the steel components used in various products, especially in critical applications, are less prone to wear, breakage, or malfunction. By using special steel, manufacturers can create more reliable and high-quality products, which ultimately leads to a reduction in defects and improves overall product performance.

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.

Q:What are the different methods for annealing special steel?: There are several methods for annealing special steel, each designed to achieve specific results and properties. Some of the most commonly used methods include: 1. Full annealing: This method involves heating the steel to a temperature above its critical temperature and holding it there for a specific duration of time. It is then slowly cooled to room temperature. Full annealing helps to achieve maximum softness and improve ductility, making the steel easier to machine and work with. 2. Isothermal annealing: In this method, the steel is heated to a temperature above its critical temperature and then immediately transferred to a furnace or chamber where it is held at a constant temperature. This allows for controlled cooling, resulting in a homogeneous and fine-grained microstructure. Isothermal annealing is particularly useful for reducing distortion and improving dimensional stability in complex-shaped parts. 3. Spheroidize annealing: This method is commonly used for high-carbon steels. It involves heating the steel to a temperature just below its critical temperature and holding it there for an extended period. This promotes the formation of spheroidized carbides, which improves machinability and reduces brittleness. 4. Process annealing: This method is typically employed to relieve internal stresses and reduce hardness in cold-worked steel. The steel is heated to a temperature below its critical temperature and then cooled in still air. Process annealing helps to restore ductility and improve formability. 5. Stress-relief annealing: This method is used to alleviate residual stresses in the steel, often caused by welding or machining processes. The steel is heated to a temperature below its critical temperature and then slowly cooled. Stress-relief annealing helps to minimize distortion and prevent cracking. It is important to note that the specific annealing method used for special steel will depend on factors such as the composition of the steel, desired mechanical properties, and the intended application of the material.

Q:How does electrical steel minimize energy losses in electrical devices?: Electrical steel minimizes energy losses in electrical devices through its unique magnetic properties and composition. It is specifically designed to have low electrical conductivity and high magnetic permeability, which reduces eddy current losses and hysteresis losses. These losses occur due to the alternating magnetic fields generated in electrical devices, such as transformers and motors. By using electrical steel, these losses are minimized, resulting in more efficient energy transfer and reduced energy wastage.

Q:What are the different types of corrosion-resistant steel?: There are several types of corrosion-resistant steel, including stainless steel, galvanized steel, weathering steel, and nickel alloys. Each of these types has specific properties that make them resistant to corrosion in various environments and applications.

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