Special Steel SAE4140 Alloy Steel Round Bar

Special Steel SAE4140 Alloy Steel Round Bar System 1

Special Steel SAE4140 Alloy Steel Round Bar

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

Chat Online

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,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

Product show

Workshop show

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:Can special steel be used in the production of fasteners for high-stress applications?: Yes, special steel can be used in the production of fasteners for high-stress applications. Special steel alloys like stainless steel or alloy steel offer enhanced strength, durability, and resistance to corrosion, making them suitable for demanding applications where fasteners are subjected to high loads or harsh environments. These special steel fasteners help ensure a secure and reliable connection, even under extreme stress conditions.

Q:How is free-cutting steel used in the production of precision components?: Free-cutting steel is used in the production of precision components because it has enhanced machinability properties. Its composition includes elements like sulfur, lead, or bismuth, which act as lubricants during machining operations. This allows for improved cutting efficiency, reduced tool wear, and increased productivity in manufacturing processes involving precision components.

Q:What are the properties of heat-resistant steel?: Heat-resistant steel has several key properties that make it suitable for use in high-temperature environments. Firstly, it has a high melting point, allowing it to withstand extreme heat without deforming or melting. Additionally, it exhibits excellent strength and toughness at elevated temperatures, enabling it to maintain structural integrity under thermal stress. Heat-resistant steel also possesses good oxidation and corrosion resistance, preventing it from corroding or deteriorating when exposed to oxygen or other corrosive elements at high temperatures. Finally, it has low thermal expansion, ensuring dimensional stability even when subjected to significant temperature changes. Overall, the properties of heat-resistant steel make it a reliable choice for applications in industries such as aerospace, power generation, and petrochemicals, where it can endure and perform consistently under intense heat conditions.

Q:How is alloy steel used in the production of gears and shafts?: Alloy steel is used in the production of gears and shafts due to its high strength and durability. By adding different alloying elements such as chromium, nickel, and molybdenum, the steel's properties can be enhanced to withstand heavy loads, high temperatures, and wear. This makes alloy steel ideal for manufacturing gears and shafts that need to transmit power, resist deformation, and maintain their integrity under demanding conditions.

Q:How does special steel contribute to the performance of cutting tools?: Special steel plays a crucial role in enhancing the performance of cutting tools by providing a range of beneficial properties. Firstly, special steel used in cutting tool manufacturing offers exceptional hardness, which allows the tool to withstand high levels of stress and wear. This hardness ensures that the cutting edge remains sharp for a longer period, resulting in improved cutting efficiency and precision. Moreover, special steel is known for its excellent toughness and resistance to chipping and breaking. This property is crucial in cutting tools as it allows them to withstand the high forces and vibrations generated during the cutting process. The toughness of special steel ensures that the tool can endure these extreme conditions without compromising its performance or structural integrity. Additionally, special steel offers excellent heat resistance and temperature stability. During cutting operations, the tool can generate significant amounts of heat due to friction. Special steel's ability to resist thermal deformation and maintain its hardness at high temperatures prevents the cutting edge from becoming dull or losing its effectiveness. Furthermore, special steel can be tailored to specific applications through alloying and heat treatment processes. This flexibility allows manufacturers to optimize the steel's properties based on the cutting tool's intended use, such as cutting different materials or operating in challenging environments. By customizing the special steel, cutting tools can be designed to deliver optimum performance, durability, and longevity. In conclusion, special steel contributes significantly to the performance of cutting tools by providing exceptional hardness, toughness, heat resistance, and customization options. These properties ensure that cutting tools remain sharp, durable, and efficient, enabling them to achieve precise cuts and withstand demanding cutting operations.

Q:What are the unique properties of stainless steel?: Stainless steel possesses several unique properties that set it apart from other metals. Firstly, it is highly corrosion resistant, making it ideal for applications in environments with high moisture or chemical exposure. Secondly, stainless steel has excellent strength and durability, allowing it to withstand extreme temperatures and heavy loads. Additionally, it is hygienic and easy to clean, making it popular in industries such as food processing and medical equipment. Lastly, stainless steel is aesthetically pleasing, with a shiny and polished appearance that can be maintained over time.

Q:How does special steel contribute to the aerospace defense machinery industry?: Special steel plays a crucial role in the aerospace defense machinery industry by providing exceptional strength, durability, and resistance to corrosion and high temperatures. It is used extensively in the manufacturing of various components such as landing gears, turbine blades, structural frames, and armor plating for military aircraft and defense systems. Its unique properties ensure optimal performance, safety, and reliability of these critical machines, enabling them to withstand challenging environments and extreme operating conditions.

Q:How does special steel contribute to the manufacturing of aerospace components?: The unique properties and characteristics of special steel make it an essential material in the manufacturing of aerospace components. Its exceptional strength, durability, and ability to withstand extreme temperatures and corrosion make it ideal for various applications in the aerospace industry. A major benefit of special steel in aerospace manufacturing is its capacity to endure high stress and pressure. During flight, aerospace components such as turbine blades, landing gear, and structural supports face tremendous forces. Special steel's strength and toughness enable these components to withstand these forces without failure, ensuring the safety and reliability of the aircraft. Moreover, special steel's resistance to extreme temperatures is crucial in the aerospace industry. For instance, aircraft engines operate at extremely high temperatures. Special steel alloys, like those containing nickel or cobalt, are used to manufacture components such as turbine discs and combustion chambers. These alloys can withstand the intense heat, preventing deformation or failure and ensuring optimal engine performance and efficiency. Additionally, special steel's resistance to corrosion is vital for aerospace applications. Aircraft are constantly exposed to harsh environmental conditions, including moisture, chemicals, and saltwater. Special steel alloys, such as stainless steel, exhibit high resistance to corrosion, preventing degradation and maintaining the structural integrity of aerospace components over time. This is particularly critical for crucial parts like fuel tanks, hydraulic systems, and airframe structures. In conclusion, special steel plays a significant role in the manufacturing of aerospace components by providing strength, durability, resistance to extreme temperatures, and corrosion resistance. Its unique properties guarantee the safety, reliability, and longevity of aerospace systems, making it an indispensable material in the aerospace industry.

Q:What are the factors that affect the fatigue strength of special steel?: There are several factors that can affect the fatigue strength of special steel. These factors include the composition and microstructure of the steel, the presence of impurities or defects, the surface finish and treatment of the steel, the applied stress levels, the temperature and environment in which the steel is used, and the presence of any residual stresses. Additionally, factors such as the frequency and amplitude of cyclic loading, the number of stress cycles, and the presence of any stress concentrations or notches can also impact the fatigue strength of special steel.

Q:How does special steel contribute to the mining machinery industry?: Special steel plays a crucial role in the mining machinery industry by offering exceptional strength, durability, and resistance to wear and corrosion. This type of steel is specifically engineered to withstand the harsh and demanding conditions that are typically encountered in mining operations. In the mining machinery industry, equipment such as drills, excavators, loaders, crushers, and conveyor systems are subjected to extreme stress, heavy loads, and abrasive materials. Special steel components can be found in various parts of these machines, including buckets, tracks, cutting edges, gears, and hydraulic components. The high strength and toughness of special steel ensure that mining machinery can withstand the immense forces and impacts involved in excavation, hauling, and processing of minerals. This durability helps to extend the lifespan of the equipment, reducing the need for frequent replacements and minimizing downtime, which ultimately leads to cost savings for mining companies. Moreover, special steel's resistance to wear and corrosion is vital in the mining industry. The presence of abrasive materials and corrosive substances in the mining environment can lead to rapid deterioration of machinery components. However, special steel alloys are designed to resist wear and corrosion, thereby enhancing the longevity and performance of mining machinery. Additionally, special steel enables mining machinery to operate efficiently and effectively. Its high strength-to-weight ratio allows for the construction of lightweight yet robust equipment, improving mobility and productivity in mining operations. The use of special steel also enables the design of complex components with intricate shapes, ensuring optimal functionality and performance. Overall, special steel is an indispensable material in the mining machinery industry. Its exceptional strength, durability, resistance to wear and corrosion, and ability to enhance efficiency make it a vital component in the design and construction of mining equipment. By incorporating special steel, mining machinery can withstand the harsh conditions and heavy-duty tasks involved in mining operations, ultimately contributing to increased productivity, reduced costs, and improved safety in the industry.

1. Manufacturer Overview
Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range