Special Steel SAE4140 Alloy Steel Round Bar

Special Steel SAE4140 Alloy Steel Round Bar System 1

Special Steel SAE4140 Alloy Steel Round Bar

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Product information

1. Grade: 4140,SAE4140, 42CrMo4, 1.7225,SCM440

2. Specification: Dia: 16~800mm Length:2000-13000mm or as required

3. Process: EAF+LF+VD

4. Technique:Forged

5.Treatment:hot rolled,cold drawn

6.Mechanical performance:

Strength of extension	1080MPA
Yield point	930MPA
Elongation	12%
Contractibility rate	45%
Impacting energy	63J

7.Chemical composition(for reference only):

Grade	C	Si	Mn	P≤	S≤	Cr	Mo
SAE4140	0.38/0.43	0.15/0.35	0.75/1.00	0.035	0.035	0.80/1.10	0.15/0.25

8. Compared grades of 4140 steel

GB-China	AISI-America	DIN-GERMANY	JIS-Japan
42CrMo	4140	1.7225 42CrMo4	SCM440

GB-China

AISI-America

DIN-GERMANY

JIS-Japan

42CrMo

4140

1.7225

42CrMo4

SCM440

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Special Steel SAE4140 Alloy Steel Round 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: What are the different surface finishing methods used for special steel?: There are several surface finishing methods used for special steel, including electroplating, powder coating, anodizing, painting, and passivation. These methods are employed to enhance the appearance, corrosion resistance, durability, and overall performance of the steel.

Q: What are the main applications of special steel in the energy storage industry?: Special steel is extensively used in the energy storage industry for various applications. It is primarily employed in the manufacturing of storage tanks and containers, ensuring the safe storage and transport of energy sources such as liquefied natural gas (LNG) or compressed hydrogen. Special steel is also utilized in the construction of battery casings and components, providing durability and protection for energy storage systems. Additionally, special steel is crucial in the fabrication of critical infrastructure, such as pipelines and transmission towers, which play a vital role in the efficient distribution of energy. Overall, special steel serves as a fundamental material in the energy storage industry, enabling the reliable and secure storage, transportation, and utilization of various energy sources.

Q: How does special steel contribute to the heavy equipment industry?: Special steel contributes to the heavy equipment industry by offering enhanced strength, durability, and resistance to wear and tear. It enables the production of high-performance components and parts, such as gears, axles, and blades, that can withstand heavy loads, extreme temperatures, and harsh environments. The use of special steel in heavy equipment ensures improved safety, increased productivity, and longer service life, making it a critical material for the industry.

Q: What are the main applications of special steel in the agricultural sector?: Special steel has various applications in the agricultural sector, including the manufacturing of agricultural machinery and equipment such as tractors, plows, and harvesters. It is also used for constructing storage silos, irrigation systems, and fencing materials. Additionally, special steel is utilized in the fabrication of cutting tools, blades, and parts for farming implements, ensuring durability and high performance in challenging agricultural environments.

Q: What are the main alloying elements in special steel?: The main alloying elements in special steel can vary depending on the specific type or grade of steel. However, some common alloying elements found in special steel include chromium, nickel, molybdenum, vanadium, tungsten, and cobalt. These alloying elements are added to steel to enhance its properties such as corrosion resistance, strength, hardness, and heat resistance. Each alloying element has its own unique effect on the steel, allowing for the creation of specialized steel grades for various applications in industries such as aerospace, automotive, oil and gas, and construction.

Q: What are the environmental considerations of using special steel?: There are several environmental considerations associated with the use of special steel. Firstly, the production of special steel involves the extraction and processing of raw materials, which can have significant environmental impacts. The mining of iron ore and other minerals required for steel production often results in habitat destruction, soil erosion, and water pollution. Additionally, the energy-intensive processes used to convert raw materials into steel emit large amounts of greenhouse gases, contributing to climate change. Furthermore, the disposal of special steel products at the end of their life cycle can also pose environmental challenges. Steel is a non-renewable resource, and its disposal in landfills can contribute to waste accumulation and resource depletion. However, steel is highly recyclable, and recycling steel products can significantly reduce the environmental impact associated with their disposal. In terms of transportation, special steel is often heavy and bulky, which leads to higher fuel consumption during transportation. This can contribute to air pollution and carbon emissions, particularly if long-distance shipping is involved. Moreover, the manufacturing processes used to produce special steel can generate various types of waste, such as slag and dust, which need to be properly managed to prevent negative environmental impacts. The treatment and disposal of these waste materials require careful consideration to ensure they do not contaminate soil, water, or air. To mitigate these environmental considerations, companies in the steel industry have been adopting more sustainable practices. This includes investing in cleaner technologies, such as electric arc furnaces that use recycled steel as feedstock, to reduce energy consumption and emissions. Additionally, implementing efficient waste management systems and promoting steel recycling can help minimize waste generation and resource depletion. Overall, while the use of special steel has undeniable benefits in various industries, it is crucial to consider and address the associated environmental impacts. Adopting sustainable practices throughout the entire lifecycle of special steel, from raw material extraction to end-of-life disposal, is vital in minimizing its environmental footprint and promoting a more sustainable future.

Q: What are the different methods of joining special steel components?: There are several methods of joining special steel components, each with its own advantages and applications. Some of the most common methods include welding, brazing, soldering, and mechanical fastening. 1. Welding: Welding is one of the most widely used methods for joining special steel components. It involves melting the base metals and adding a filler material to create a strong bond. Different welding techniques, such as arc welding, gas welding, or laser welding, can be used depending on the specific requirements and properties of the steel components. 2. Brazing: Brazing is a joining process that uses a filler material with a lower melting point than the base metals. The filler material is heated and distributed between the components, creating a strong bond when it solidifies. Brazing is often used for high-temperature applications and can be done with a torch, furnace, or induction heating. 3. Soldering: Soldering is similar to brazing but uses a lower melting point filler material called solder. It is commonly used for electrical and electronic applications, as well as for joining small or delicate steel components. Soldering requires less heat and can be done with a soldering iron or a hot air gun. 4. Mechanical Fastening: Mechanical fastening involves joining components using mechanical means such as screws, bolts, nuts, or rivets. This method is often used when disassembly or reassembly is required, as it allows for easy removal and replacement of components. Mechanical fastening is suitable for applications where a strong and reliable joint is needed but welding or brazing may not be feasible. 5. Adhesive Bonding: Adhesive bonding is another method used for joining special steel components. It involves applying an adhesive material to the mating surfaces and allowing it to cure or harden, creating a strong bond. Adhesive bonding is often used when a continuous joint is required or when joining dissimilar materials. It is also advantageous for applications that require vibration damping or sealing. Each method of joining special steel components has its own strengths and limitations, and the selection of the appropriate method depends on factors such as the specific requirements of the application, the properties of the steel components, and the desired strength and durability of the joint.

Q: Can special steel be used in the production of surgical implants?: Yes, special steel can be used in the production of surgical implants. Special steels such as stainless steel or titanium alloys are often chosen for their corrosion resistance, biocompatibility, and mechanical properties, making them suitable for manufacturing surgical implants that need to be durable and compatible with the human body.

Q: How does special steel contribute to improving product resistance to environmental factors?: Special steel contributes to improving product resistance to environmental factors in several ways. Firstly, special steel alloys often have enhanced corrosion resistance, protecting the product from damage caused by exposure to moisture, chemicals, and other corrosive substances present in the environment. Additionally, special steel can offer improved strength and durability, enabling the product to withstand harsh conditions such as extreme temperatures, high pressure, or mechanical stress. Furthermore, special steel can exhibit excellent fatigue resistance, ensuring that the product maintains its structural integrity even after prolonged exposure to cyclic loading or repetitive stress. Overall, the unique characteristics of special steel make it a valuable material for enhancing the resistance of products to various environmental factors, ultimately prolonging their lifespan and reducing maintenance costs.

Q: What are the different types of spring steel?: There are several different types of spring steel, including high carbon spring steel, stainless steel, alloy steel, and piano wire.

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