Special Steel SAE4140 Alloy Steel Bar 42CrMo4

Special Steel SAE4140 Alloy Steel Bar 42CrMo4 System 1

Special Steel SAE4140 Alloy Steel Bar 42CrMo4

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Product Information

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

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	SCM440

Product Show

Special Steel SAE4140 Alloy Steel Bar 42CrMo4

Workshop Show

Special Steel SAE4140 Alloy Steel Bar 42CrMo4

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 different from regular steel?: Special steel is different from regular steel due to its unique composition and properties. Unlike regular steel, special steel is specifically designed to possess enhanced characteristics such as increased strength, durability, corrosion resistance, and heat resistance. Special steel is often alloyed with various elements like chromium, nickel, molybdenum, or vanadium to achieve these improved qualities, making it suitable for specific applications that require superior performance under challenging conditions.

Q: What are the main factors affecting the formability of special steel?: The main factors affecting the formability of special steel include the composition of the steel, its microstructure, temperature, strain rate, and the presence of impurities or defects. These factors influence the ability of the steel to deform without cracking or fracturing during the forming process. Additionally, the mechanical properties, such as the yield strength and ductility, also play a significant role in determining the formability of special steel.

Q: What are the main applications of special steel in the medical implants?: Special steel is widely used in medical implants due to its unique properties and high biocompatibility. It is primarily used in applications such as orthopedic implants, cardiovascular devices, dental implants, and surgical instruments. The excellent strength, corrosion resistance, and ability to withstand sterilization processes make special steel ideal for these applications, ensuring long-term durability and patient safety. Additionally, the versatility of special steel allows for the production of complex implant designs, promoting better integration with the patient's body and enhancing overall implant performance.

Q: What are the properties of high-temperature tool steel?: High-temperature tool steel possesses a combination of properties that make it suitable for use in high-temperature applications. It has excellent hardness, toughness, and wear resistance, enabling it to withstand extreme temperatures without losing its shape or strength. Additionally, it exhibits good thermal conductivity and dimensional stability, ensuring that it maintains its form and performance even under high heat and thermal cycling.

Q: How does special steel contribute to the durability of products?: Special steel contributes to the durability of products in several ways. Firstly, special steel is known for its high strength and hardness, making it resistant to wear and tear. This ensures that products made from special steel can withstand heavy use and last longer than those made from regular steel or other materials. Additionally, special steel is often alloyed with other elements such as chromium, nickel, and molybdenum, which enhances its corrosion resistance. This is particularly important for products that are exposed to harsh environments or chemicals. The corrosion resistance of special steel helps prevent rust and degradation, increasing the lifespan of the product. Furthermore, special steel can be heat-treated to improve its mechanical properties, such as toughness and hardness. Heat-treated special steel undergoes specific heating and cooling processes to enhance its strength, making it less prone to deformation and breakage. This is particularly beneficial for products that are subject to heavy loads or impacts. Moreover, special steel is often manufactured with precise composition and microstructure, which results in improved material properties. This includes better fatigue resistance, meaning the material can withstand repeated stress without cracking or breaking. Products made from special steel are therefore more reliable and less prone to failure. In summary, special steel contributes to the durability of products through its high strength, corrosion resistance, improved mechanical properties, and better fatigue resistance. By utilizing special steel in the manufacturing process, products can be designed to withstand various demanding conditions, ensuring a longer lifespan and greater reliability.

Q: Can special steel be used for making mining equipment?: Yes, special steel can be used for making mining equipment. Special steel refers to steel alloys that have been specifically designed and manufactured to possess certain properties and characteristics that make them suitable for specific applications. In the case of mining equipment, special steel is often used due to its exceptional strength, toughness, and resistance to wear and corrosion. Mining equipment is subjected to extreme conditions, such as heavy loads, impact, abrasion, and exposure to harsh environments. Special steel grades, such as high-strength low-alloy (HSLA) steel, tool steel, and wear-resistant steel, are commonly employed in the manufacturing of mining equipment to ensure their durability and performance under these demanding circumstances. Special steel allows mining equipment to withstand the stresses and strains encountered during excavation, hauling, and processing of minerals. It can be used for the fabrication of components like bucket teeth, drill bits, cutting edges, and crusher parts, which need to resist wear and maintain their strength even when exposed to abrasive materials. Moreover, certain types of special steel, such as stainless steel, are particularly suitable for mining operations where equipment comes into contact with corrosive substances like acids or moisture. Stainless steel exhibits excellent corrosion resistance, making it suitable for applications such as pipes, tanks, and conveyors used in mining operations. In conclusion, special steel can indeed be used for making mining equipment. Its superior strength, toughness, wear resistance, and corrosion resistance make it a preferred choice for manufacturing various components and structures used in the mining industry.

Q: What are the properties of weathering steel?: Weathering steel, also known as Corten steel, possesses several key properties. Firstly, it has a high resistance to corrosion, making it suitable for outdoor applications. Secondly, it forms a protective layer of rust on its surface, which not only adds to its aesthetic appeal but also acts as a barrier against further corrosion. Additionally, weathering steel is durable and strong, making it suitable for various structural applications. Lastly, it has the ability to withstand extreme weather conditions, including high temperatures and heavy rainfall, without deteriorating.

Q: How does special steel contribute to the construction industry?: Special steel plays a crucial role in the construction industry by offering enhanced strength, durability, and resistance to corrosion. It allows for the creation of structurally stable buildings and infrastructure, ensuring safety and longevity. Additionally, special steel enables more efficient and cost-effective construction methods, allowing for innovative designs and the use of lighter materials. Its versatility and reliability make it an essential component in constructing high-rise buildings, bridges, pipelines, and other critical infrastructure projects.

Q: What are the requirements for special steel used in marine applications?: In order to ensure durability and performance in harsh marine environments, special steel used in marine applications must satisfy various specific criteria. These criteria encompass the following: 1. Corrosion resistance: To prevent degradation and maintain its structural integrity over time, special steel utilized in marine applications must possess a high resistance to corrosion, as it is exposed to saltwater in marine environments. 2. Strength and toughness: Steel employed in marine applications must exhibit adequate strength and toughness to withstand the dynamic forces and impacts encountered at sea. It must be capable of enduring heavy loads, extreme temperatures, and the impact of waves or collisions. 3. Weldability: Optimal weldability is a requirement for special steel used in marine applications, as it facilitates the construction and repair of marine structures. This characteristic ensures that the steel can be effortlessly joined without compromising its structural integrity. 4. Fatigue resistance: Special steel employed in marine applications must possess exceptional fatigue resistance to withstand the constant cyclic loading associated with wave motions, currents, and operational conditions. Failure to address this requirement can result in fatigue failure. 5. Low-temperature toughness: Due to the involvement of marine applications in cold climates or icy waters, special steel used in these scenarios must maintain its toughness and ductility even at low temperatures. This characteristic is pivotal in preventing brittle fracture and ensuring safety. 6. Fire resistance: High fire resistance is of utmost importance in marine applications. Therefore, special steel utilized in marine structures should possess a high level of fire resistance to prevent structural collapse and restrict the spread of fire. 7. Easy maintenance: Ongoing exposure to harsh environmental conditions necessitates that special steel used in marine applications be easy to maintain and repair. This ensures prolonged performance and minimizes downtime. To fulfill these requirements, special steel for marine applications frequently undergoes alloying with specific elements such as chromium, nickel, and molybdenum. This enhances corrosion resistance, strength, and toughness. Furthermore, advanced manufacturing processes and quality control measures are implemented to guarantee the highest standards of quality and performance in marine applications.

Q: Is special steel suitable for marine applications?: Marine applications necessitate materials capable of enduring high levels of moisture, exposure to saltwater, and environmental factors such as temperature fluctuations and the impact of waves. Special steel, also known as marine grade stainless steel, is specifically engineered to withstand the challenging conditions prevalent in marine environments. Its exceptional resistance to corrosion, particularly in the presence of saltwater, renders it highly appropriate for diverse marine applications. Distinguished by a greater proportion of chromium and nickel compared to standard steel grades, special steel augments its corrosion resistance properties. Furthermore, it is frequently alloyed with molybdenum, titanium, or other elements to further enhance its resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking. Shipbuilding, offshore oil and gas platforms, marine equipment and machinery, marine pipelines, as well as marine architecture and structures are among the common marine applications that derive benefits from special steel. Additionally, special steel is employed in the construction of naval vessels, submarines, and offshore wind farms. To summarize, special steel is exceptionally well-suited to marine applications due to its exceptional resistance to corrosion, durability, and strength. It effectively withstands the rigorous conditions present in marine environments, ensuring the longevity and dependability of marine structures and equipment.

Send your message to us

*Email

*TEL

*Quantity

*Unit