Special Steel 42CrMo/1.7225/4140 High Carbon Steel
- Ref Price:
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- 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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Item specifice
Type:
Alloy Steel
Shape:
Steel Sheet
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Thickness:
as required
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Length:
as required
Net Weight:
as required
Chemical Composition(%)
| C | Si | Mn | Cr | Mo | Ni | P | S |
| 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | 0.15-0.25 | ≤0.030 | ≤0.030 | ≤0.030 |
Standard
| GB | AISI | DIN | JIS | ISO |
| 42CrMo | 4140 | 42CrMo4 | SCM440 | 42CrMo4 |
Available Size
| Rolled round bar | φ20-120mm × L |
| Forged round bar | φ130-195mm × L |
Heat Treatment
| Item | Temperature℃ | Hardness |
| quenching | 840-880 | HRC32-34 |
| tempering | 580 | |
| quenching | 900 | HRC54-60 |
| tempering | 150-180 |
Characterstics
| The steel with high strength and toughness, hardenability is better also | |||||||
| After conditioning treatment quenching deformation of small | |||||||
| high fatigue limit and repeated impact resistance |
Applications
The steel is suitable for manufacturing requires a certain strength and toughness of large and medium-sized plastic mold
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Workshop show：
FAQ:
1, Your advantages?
professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale
2, Test & Certificate?
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem
3, Payment Terms?
30% TT as deposit and 70% before delivery.
Irrevocable L/C at sight.
4, Trading Terms?
EXW, FOB, CIF, FFR, CNF
5, After-sale Service?
We provides the services and support you need for every step of our cooperation. We're the business partner you can trust.
For any problem, please kindly contact us at any your convenient time.
We'll reply you in our first priority within 24 hours.
- Q:What are the different non-destructive testing methods for special steel?
- Special steel materials can be evaluated using a variety of non-destructive testing methods. These methods are specifically designed to identify flaws or defects in the steel without causing any harm to the material itself. There are several commonly used non-destructive testing methods for special steel: 1. Ultrasonic Testing (UT): UT utilizes high-frequency sound waves to detect internal flaws or defects in the steel. By directing ultrasonic waves into the material and analyzing the reflected waves, any cracks, voids, or inclusions can be identified. 2. Magnetic Particle Testing (MT): MT is primarily used to identify surface defects in steel. By applying a magnetic field to the material and iron particles to the surface, any present defects will cause the particles to cluster around them, making them visible for inspection. 3. Liquid Penetrant Testing (PT): PT is a widely used method to detect surface defects in special steel. This technique involves applying a liquid dye to the steel surface and removing excess dye after a certain amount of time. By then applying a developer, any dye drawn out of defects becomes visible for inspection. 4. Radiographic Testing (RT): RT utilizes X-rays or gamma rays to examine the internal structure of special steel. The steel is exposed to radiation, and the resulting image is captured on a radiographic film or digital detector. This method is highly effective in detecting internal defects such as porosity, inclusions, or cracks. 5. Eddy Current Testing (ECT): ECT is primarily used for surface inspection of special steel. It involves passing an electrical current through a coil, generating a magnetic field. Any variations in the magnetic field caused by defects on the surface of the steel can be detected and analyzed. These non-destructive testing methods provide valuable information about the quality and integrity of special steel materials without causing any damage. By implementing these techniques, manufacturers and engineers can ensure that the steel meets required standards and specifications, ultimately enhancing safety and reliability in various applications.
- Q:Can special steel be used in the production of gearboxes?
- Yes, special steel can be used in the production of gearboxes. Special steel, such as alloy steel or heat-treated steel, is often preferred for gear manufacturing due to its high strength, durability, and resistance to wear and fatigue. These properties make special steel well-suited for transmitting power and withstanding the demands of heavy-duty applications, making it an ideal material choice for gearboxes.
- Q:What are the applications of special steel in the aerospace sector?
- Special steel has various applications in the aerospace sector due to its exceptional properties. It is used for manufacturing critical components such as turbine blades, landing gear, and structural parts. The high strength, corrosion resistance, and heat resistance of special steel make it ideal for withstanding extreme conditions experienced during flight. Additionally, its lightweight nature contributes to fuel efficiency and overall performance improvement in aircraft.
- Q:How does special steel contribute to reducing product downtime?
- Special steel contributes to reducing product downtime by offering superior strength, durability, and corrosion resistance compared to regular steel. This allows for the manufacturing of high-performance components that can withstand harsh operating conditions, reducing the likelihood of breakdowns or failures. Additionally, special steel's enhanced wear resistance prolongs the lifespan of products, minimizing the need for frequent replacements or repairs. Overall, the use of special steel in various industries helps to ensure reliable and uninterrupted operation, leading to reduced downtime and increased productivity.
- Q:Can special steel be used in the mining equipment manufacturing industry?
- Yes, special steel can be used in the mining equipment manufacturing industry. Special steel, often known as alloy steel, offers improved strength, durability, and resistance to wear and corrosion compared to standard steel. These properties make it well-suited for the harsh and demanding conditions encountered in mining operations. Special steel can be utilized in various mining equipment components, such as drill bits, crushers, conveyor systems, and excavator buckets, to enhance their performance and prolong their lifespan.
- Q:What are the different methods for controlling the grain size in special steel?
- There are several methods for controlling the grain size in special steel. 1. Heat treatment: One common method is heat treatment, which involves subjecting the steel to specific temperatures and cooling rates. This process can be used to refine the grain size by controlling the rate of nucleation and growth of new grains. For example, slow cooling can promote the formation of larger grains, while rapid cooling can result in smaller grain sizes. 2. Alloying elements: Adding certain alloying elements to the steel can also influence the grain size. For instance, elements like vanadium, niobium, and titanium can form carbides, which act as nucleation sites, leading to finer grain sizes. On the other hand, elements like aluminum and silicon can promote the formation of larger grains. 3. Mechanical deformation: Applying mechanical deformation to the steel, such as through rolling or forging, can also affect the grain size. These processes cause grain refinement by breaking up larger grains into smaller ones. Additionally, severe plastic deformation techniques like equal-channel angular pressing can produce ultrafine grains in special steel. 4. Grain growth inhibitors: Certain elements can act as grain growth inhibitors, preventing the coarsening of grain size during heat treatment. Examples of such elements include boron and zirconium. By controlling the concentration of these inhibitors, it is possible to inhibit grain growth and maintain a desired grain size. 5. Controlled cooling: Controlling the cooling rate during solidification and heat treatment is another method for controlling grain size. By carefully controlling the cooling rate, it is possible to achieve a specific grain size or a desired distribution of grain sizes. It is important to note that the choice of method for controlling grain size in special steel depends on the specific application and desired properties of the steel. Different methods may be employed in combination to achieve the desired grain size and optimize the performance of the steel for its intended use.
- Q:How does the alloying elements affect the properties of special steel?
- Alloying elements have a significant impact on the properties of special steel. By adding specific elements in varying proportions, the strength, hardness, corrosion resistance, and other properties of the steel can be altered. For example, chromium increases the steel's resistance to corrosion, manganese improves its strength, and nickel enhances its toughness. Different combinations of alloying elements can create specialized steels with specific properties tailored for various applications in industries such as automotive, aerospace, and construction.
- Q:How is special steel used in the marine supply chain?
- Special steel is used extensively in the marine supply chain due to its exceptional strength, corrosion resistance, and durability. It is utilized in the construction of various marine components such as ship hulls, propeller shafts, offshore platforms, and marine equipment. Special steel ensures the structural integrity and longevity of these critical marine structures, enabling safe and efficient operations in harsh and corrosive marine environments.
- Q:How does electrical steel contribute to the production of transformers and motors?
- Electrical steel, also known as silicon steel, plays a crucial role in the production of transformers and motors. Its unique magnetic properties, achieved through the addition of silicon, allow for efficient energy transfer and reduction of energy losses. The low core loss and high magnetic permeability of electrical steel enable transformers to convert high voltage electricity into lower voltage levels, and motors to efficiently convert electrical energy into mechanical motion. In essence, electrical steel is the essential material that enables the high efficiency and performance of transformers and motors, making them indispensable components in various electrical applications.
- Q:How is special steel used in the aerospace manufacturing process?
- Special steel is used in the aerospace manufacturing process for various applications, such as producing critical components like landing gear, turbine blades, and engine parts. The high strength, durability, and resistance to corrosion make special steel an ideal material for these aerospace components, ensuring the safety, reliability, and performance of the aircraft.
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Special Steel 42CrMo/1.7225/4140 High Carbon Steel
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 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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