Special Steel Scm440 Aisi 4140 Steel CNBM
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
Special Steel Scm440 Aisi 4140 Steel CNBM
Product Description:
1.Dia: 10mm-300mm
2.Length: 3000mm-12000mm
3.Process: EAF + LF + VD + Forged + Heat Treatment (optional)
4.Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)
5.Forged ratio: no less than 3:1
6.Technical Data: According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing
7.Test: ultrasonic test according to SEP 1921-84 3C/c
8.Material details will be as per agreed technical specifications
9.Certificate of Quality: issued in English, in addition the normal terms
Chemical Composition:
GB | AISI | JIS | DIN | C | Si | Mn | Cr | Mo |
27SiMn | - | - | - | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.3 | 0.10-0.15 |
40Cr | 5140 | SCM440 | 41Cr4 | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | 0.10-0.15 |
35CrMo | 4135 | SCM435 | 34CrMo4 | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | 0.80-1.10 | 0.15-0.25 |
42CrMo | 4140 4142 | SCM440 | 42CrMo4 | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | 0.15-0.25 |
Application:
scm440 hot rolled round bars and forged round bars used in the manufacture of requirements higher than
35 crmo steel strength and conditioning section larger forgings, such as locomotive traction with the big gear,
supercharger drive gear, pressure vessel gear.
Product Show:
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- Cobalt-based alloys are commonly used in dental applications due to their excellent mechanical properties, corrosion resistance, and biocompatibility. They are used in dental prosthetics, such as crowns, bridges, and dentures, as well as in dental implants. These alloys provide high strength and durability, ensuring long-lasting dental restorations. Additionally, their biocompatibility ensures that they do not cause any adverse reactions in the oral environment.
- Q:How is alloy steel used in the manufacturing of gears and shafts?
- Alloy steel is commonly used in the manufacturing of gears and shafts due to its superior strength, durability, and resistance to wear and tear. Its unique properties make it ideal for withstanding high torque and heavy loads, ensuring smooth and efficient operation of gears and shafts in various industrial applications.
- Q:What are the common challenges in machining titanium alloys?
- The common challenges in machining titanium alloys include their high chemical reactivity, low thermal conductivity, high cutting forces, and poor chip control. Additionally, titanium alloys tend to work harden, making them prone to tool wear and requiring frequent tool changes. Moreover, their low modulus of elasticity can lead to vibration and chatter during machining operations, affecting surface quality and dimensional accuracy.
- Q:How is case-hardening steel used in the manufacturing of gears?
- Case-hardening steel is used in the manufacturing of gears to increase their surface hardness while maintaining a tough and durable core. This process involves heating the gear in the presence of a carbon-rich gas or by immersing it in a carbon-rich environment. The carbon diffuses into the outer layer of the steel, creating a hardened surface. This hardened layer provides enhanced wear resistance and significantly extends the lifespan of the gear, making it suitable for demanding applications where gears experience high loads and friction.
- Q:How does special steel contribute to improving product sustainability?
- Special steel contributes to improving product sustainability in various ways. Firstly, special steel is known for its durability and strength, which enables products made from it to have a longer lifespan. This reduces the need for frequent replacements, minimizing waste and conserving resources. Additionally, special steel is highly recyclable, allowing it to be reused and transformed into new products, thus reducing the demand for virgin materials. Furthermore, special steel's resistance to corrosion and wear makes it suitable for harsh environments, reducing maintenance requirements and extending product lifecycles. Overall, the use of special steel enhances product sustainability by promoting longevity, resource conservation, and circular economy principles.
- Q:What are the different methods of surface laser cladding for special steel?
- There are several different methods of surface laser cladding that can be used for special steel. One common method is powder-based laser cladding. In this process, a powder material is injected into the laser beam, which melts and fuses with the surface of the special steel. The powder material can be chosen to provide specific properties such as enhanced hardness or corrosion resistance. This method allows for precise control over the thickness and composition of the cladding layer. Another method is wire-based laser cladding. In this process, a wire material is fed into the laser beam, which melts and fuses with the special steel surface. Wire-based laser cladding is often used for larger areas or when a thicker cladding layer is required. It is also commonly used for repairing or salvaging worn or damaged parts. A third method is direct energy deposition (DED) laser cladding. This method involves using a laser beam to melt a powder or wire material as it is being deposited onto the special steel surface. DED laser cladding allows for rapid build-up of multiple layers and is often used for additive manufacturing or repairing high-value components. Each method of surface laser cladding has its own advantages and limitations, and the choice of method depends on factors such as the desired cladding thickness, material properties, and the specific requirements of the application.
- Q:How is precipitation-hardening steel used in the aerospace industry?
- Precipitation-hardening steel is extensively used in the aerospace industry due to its exceptional strength-to-weight ratio and high corrosion resistance. It is employed in critical components such as aircraft structures, landing gears, turbine blades, and fasteners. The steel's unique property of being able to strengthen through a precipitation process allows for the manufacturing of lightweight and durable parts, resulting in improved fuel efficiency, enhanced performance, and increased safety in aircraft operations.
- Q:What is the hardness range of special steel?
- The hardness range of special steel typically varies between 20 and 70 HRC (Rockwell Hardness Scale).
- Q:What are the different types of case-hardening steel?
- There are several different types of case-hardening steel, including carburizing steel, nitriding steel, and cyaniding steel.
- Q:What are the physical properties of special steel?
- Special steel is a type of steel that possesses unique physical properties compared to regular steel. These properties may vary depending on the specific composition and processing techniques used. However, some common physical properties of special steel include high strength, hardness, and durability. Special steel is often designed to withstand extreme conditions such as high temperatures, pressure, and corrosive environments. It may also exhibit excellent wear resistance, making it suitable for applications involving heavy machinery or cutting tools. Furthermore, special steel can have superior electrical and thermal conductivity, as well as good magnetic properties. Overall, the physical properties of special steel make it highly versatile and valuable in various industries such as automotive, aerospace, construction, and energy.
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Special Steel Scm440 Aisi 4140 Steel CNBM
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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