42CrMo4 Alloy Steel Round Bars Hot Rolled Bars
- 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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Item specifice
Type:
Alloy Steel
Shape:
Steel Round Bar
42CrMo4 Alloy Steel Round Bars Hot Rolled Bars
Product Description:
1. Sizes: Diameter: 16mm-300mm; Length: 6m, 9m, 12m
2. Grade: 42CrMo, 4140,42CrMov4
3. Invoicing on theoretical weight or actual weight as customer’s request
4. Shape: Round bar, solid bar of steel with circular section
5. Technique: Hot rolled, forged, cold rolled
Specification:
Material | 42CrMo4 | Round bar | Dia(mm) | 16-600 |
Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | Max 12000 | |
Heat treatment | Normalized / Annealed / Quenched / tempered | Flat bar | Thickness(mm) | 8-500 |
Delivery condition | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) | Width(mm) | 70-200 | |
Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | Max 12000 |
Chemical Composition:
C | Si | Mn | Cr | Ni | Cu |
0.38~0.45 | 0.17~0.37 | 0.50~0.80 | 0.9-1.2 | ≤0.030 | ≤0.030 |
Packing and Delivery:
Packing in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: Approx.45 days
Usage and Applications:
1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Some especial material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.
Product Show:
- Q:How is special steel used in the production of consumer goods?
- Special steel is used in the production of consumer goods due to its superior strength, durability, and corrosion resistance. It is commonly used in manufacturing appliances, cutlery, automotive components, and construction materials, ensuring the end-products meet high-quality standards and have a longer lifespan.
- Q:How is the toughness of special steel measured?
- The toughness of special steel is typically measured using impact testing methods, such as the Charpy or Izod test. These tests involve measuring the amount of energy absorbed by the steel when it is struck by a pendulum or a falling weight. The higher the energy absorbed, the tougher the steel is considered to be.
- Q:What are the different surface protection methods used for special steel?
- To enhance the durability and resistance of special steel, several methods of surface protection are employed. Galvanizing is a commonly utilized technique, wherein a layer of zinc is applied to the steel surface. This shields the steel from corrosion and rusting, thereby prolonging its lifespan and preserving its appearance. Galvanizing can be executed through either hot-dip galvanizing or electroplating, depending on the specific requirements of the steel. Another method is powder coating, which entails the application of a dry powder to the steel surface, followed by curing at high temperatures. This results in the formation of a protective layer that is impervious to chipping, scratching, and fading. Powder coating is often chosen for its aesthetic benefits, as it offers a wide range of color options and can enhance the visual appeal of the steel. Furthermore, various types of paints and coatings can be employed to protect special steel. These coatings can be applied using a spray or brush technique, and they serve as a barrier against corrosion, chemicals, and UV radiation. Depending on the specific needs and environmental conditions, epoxy, polyurethane, and acrylic coatings are frequently utilized. Moreover, stainless steel possesses inherent resistance to corrosion due to its composition. However, to further safeguard it, passivation can be employed. Passivation involves a chemical treatment that eliminates iron particles from the surface, thus preventing corrosion and improving the steel's resilience against staining and pitting. Lastly, a layer of ceramic or enamel coating can be applied to protect special steel. These coatings offer high levels of resistance to heat, chemicals, and physical abrasion. They can be applied through spraying or dipping and are commonly used in environments where the steel will be exposed to extreme conditions or aggressive substances. In conclusion, the various surface protection methods utilized for special steel encompass galvanizing, powder coating, painting, passivation, and ceramic/enamel coating. These methods aim to enhance the steel's durability, corrosion resistance, and overall lifespan, ensuring that it can withstand diverse environmental factors while maintaining its structural integrity.
- Q:What are the main characteristics of magnetic steel forgings?
- The main characteristics of magnetic steel forgings are high strength, excellent wear resistance, and good magnetic properties. These forgings are known for their durability and ability to withstand extreme conditions. They also have good machinability and can be easily formed into various shapes.
- Q:How does special steel contribute to the electronics industry?
- Special steel contributes to the electronics industry by providing highly durable and corrosion-resistant materials for the manufacturing of various electronic components. It is used in the production of connectors, circuit boards, magnetic cores, and other critical parts of electronic devices. Its unique properties enhance the performance, reliability, and longevity of electronic products, ensuring efficient functioning and reducing the risk of failures.
- Q:How does electrical steel contribute to the production of transformers and motors?
- Electrical steel, also known as silicon steel or lamination steel, plays a crucial role in the production of transformers and motors. Its unique magnetic properties make it an ideal material for the cores of these devices. The high silicon content in electrical steel reduces the energy losses that occur due to magnetic hysteresis and eddy currents, making the transformers and motors more efficient. Additionally, the laminated structure of electrical steel helps to minimize the eddy current losses further. Overall, the use of electrical steel in transformers and motors improves their performance, increases energy efficiency, and allows for compact and lightweight designs.
- Q:How is special steel heat treated?
- Special steel is heat treated using a combination of heating and cooling processes to improve its strength, hardness, and other desired properties. This typically involves heating the steel to a specific temperature, known as the austenitizing temperature, followed by rapid cooling, known as quenching, to transform the steel's microstructure. This is then followed by tempering, where the steel is reheated to a lower temperature to relieve internal stresses and further enhance its mechanical properties. The specific heat treatment process and parameters vary depending on the type of special steel and the desired final properties.
- Q:How is special steel used in the aerospace manufacturing process?
- Special steel is used in the aerospace manufacturing process due to its exceptional strength, durability, and resistance to extreme temperatures. It is utilized in various components such as turbine engines, landing gear, and structural parts, ensuring the safety and reliability of aircraft. Additionally, special steel alloys are employed in critical areas where weight reduction is necessary, enhancing fuel efficiency and overall performance.
- Q:Can special steel be used in the production of valves and fittings?
- Yes, special steel can be used in the production of valves and fittings. Special steel, such as stainless steel or alloy steel, is often preferred due to its high strength, corrosion resistance, and ability to withstand extreme temperatures and pressures. These properties make special steel suitable for various industrial applications, including the manufacturing of valves and fittings used in sectors like oil and gas, chemical, and power generation.
- Q:What are the advantages of using special steel in the renewable energy sector?
- Using special steel in the renewable energy sector offers several advantages. Firstly, special steel possesses exceptional strength and durability, making it ideal for withstanding extreme weather conditions and harsh environments often encountered in renewable energy projects. This ensures a longer lifespan and reduced maintenance requirements for renewable energy infrastructure such as wind turbines or solar panels. Additionally, special steel has excellent corrosion resistance properties, which is crucial in the renewable energy sector where exposure to moisture, saltwater, and other corrosive elements is common. This resistance helps prevent degradation and ensures the longevity of renewable energy components, reducing the need for frequent replacements and associated costs. Moreover, special steel can be tailored to specific designs and requirements, enabling the fabrication of complex and lightweight structures. This flexibility allows for the development of innovative and efficient renewable energy solutions, enhancing overall performance and energy production. Lastly, special steel is highly recyclable, contributing to the sustainability of the renewable energy sector. It can be easily recycled and reused, reducing the environmental impact and promoting a circular economy. Overall, the use of special steel in the renewable energy sector provides enhanced strength, corrosion resistance, design flexibility, and sustainability, making it an advantageous choice for renewable energy infrastructure.
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42CrMo4 Alloy Steel Round Bars Hot Rolled Bars
- 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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