Annealed,Hot Rolled&Forged 4130 Alloy Steel Bar
- 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
Annealed,Hot Rolled&Forged 4130 Alloy Steel Bar
Material: | AISI 4130 Alloy Steel | |||||||||
Diameter | 6mm ~800mm or at your requirements | |||||||||
Length | 1m~12m or at your requirements | |||||||||
tolerance | a) Diameter: +/-0. 15mm or the others | |||||||||
b) Length:+/-4. 5mm or the others | ||||||||||
surface | black or turned | |||||||||
test | Squash test, Extended test, Water pressure test, Crystal rot test, Heat treatment, NDT. | |||||||||
Mechanical Property | Tensile Strength | ≥ (440~1470) | ||||||||
Yield Strength | ≥(255~1330) | |||||||||
Extension | ≥ (7%~24%) | |||||||||
Reduction of cross-section | ≥ (35%~60%) | |||||||||
Impact absorbing energy | ≥ (31~110) | |||||||||
Hardness (HBS) | ≤ (179~269) | |||||||||
Payment term | T/T L/C or we can negotiate it. | |||||||||
Delivery condition | EAF + LF + VD, hot rolled/forged/ Heat Treatment(optional), | |||||||||
Trade term | FOB/CFR/CIF | |||||||||
Delivery time | have stocks | |||||||||
Packagements | According to customers' requirements or export's demands | |||||||||
Port | Shenzhen/Guangzhou | |||||||||
MOQ | 100 Kilogrammes | |||||||||
Character
| 1,high strength and hardenability 4,good combination property 5,high quality and competitive price. | |||||||||
Application | made into ships, vehicle, aircraft, missile,weapons,railways,bridge,pressure vessel, machine tool,gears in gearbox, gear shaft, cam, worm, claw clutch, etc. | |||||||||
Products | Our products mainly cover special steel,including stainless steel, tool steel, die steel, bearing steel,etc. And in shapes, we provide steel round bar, steel square bar,steel flat bar, steel plate, steel sheet, steel coil, steel wire, ans steel pipe.Being the top-class products in China,our products have been used in all kinds of fields,such as aerospace, electronic information, machine manufacture,petrochemical,automotive,communication, transportation and medical instruments, etc. Our products are sold all over the world , mainly in Asia, South America, and Africa.
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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 main elements in special steel alloys?
- The main elements in special steel alloys can vary depending on the specific type of alloy and its intended application. However, there are several common elements that are often present in special steel alloys. These include: 1. Iron (Fe): Iron is the main component of steel alloys, providing its base strength and durability. 2. Carbon (C): Carbon is a key element in steel alloys, as it significantly influences the hardness and strength of the material. Different levels of carbon content can result in varying properties, such as high carbon steel for increased hardness or low carbon steel for improved ductility. 3. Chromium (Cr): Chromium is commonly added to steel alloys to enhance their corrosion resistance. It forms a protective layer on the surface of the alloy, preventing oxidation and rusting. 4. Nickel (Ni): Nickel is often used in special steel alloys to improve their resistance to heat and corrosion. It also contributes to enhancing the material's strength and toughness. 5. Manganese (Mn): Manganese is commonly added to steel alloys to improve their workability and machinability. It also enhances the material's strength and impact resistance. 6. Molybdenum (Mo): Molybdenum is frequently included in special steel alloys to increase their strength, hardness, and high-temperature resistance. It also improves the alloy's ability to withstand corrosion. 7. Vanadium (V): Vanadium is often added to steel alloys to enhance their strength, toughness, and heat resistance. It also aids in refining the grain structure of the alloy, resulting in improved performance. These are just a few examples of the main elements commonly found in special steel alloys. Depending on the specific requirements and desired properties, other elements such as tungsten, cobalt, copper, and titanium may also be present in varying amounts. The combination of these elements in different proportions allows for the creation of specialized steel alloys with unique properties tailored for specific applications in industries such as aerospace, automotive, construction, and manufacturing.
- Q:What are the magnetic properties of special steel?
- Special steel can exhibit a range of magnetic properties depending on its composition and processing. It can be non-magnetic, weakly magnetic, or strongly magnetic. The specific magnetic properties of special steel can be tailored to meet specific requirements for different applications.
- Q:What are the main factors affecting the heat resistance of special steel?
- The main factors affecting the heat resistance of special steel include its alloy composition, microstructure, and heat treatment. Alloy composition plays a crucial role in determining the heat resistance of special steel. The addition of specific elements such as chromium, nickel, molybdenum, and tungsten can enhance the steel's ability to withstand high temperatures. These alloying elements form stable oxide layers on the surface of the steel, which act as a barrier against oxidation and corrosion at elevated temperatures. The microstructure of special steel also influences its heat resistance. The steel's grain size, distribution of phases, and the presence of precipitates can affect its thermal stability. Fine-grained structures and a homogeneous distribution of phases help improve the steel's resistance to creep, which is the deformation that occurs under prolonged exposure to high temperatures. Additionally, the presence of precipitates, such as carbides or intermetallic compounds, can provide strengthening mechanisms that enhance the steel's resistance to thermal softening. Heat treatment processes, such as quenching and tempering, can significantly impact the heat resistance of special steel. Proper heat treatment can optimize the microstructure and enhance the steel's mechanical properties, including its resistance to thermal degradation. For instance, a well-controlled quenching process can promote the formation of a martensitic structure, which increases the steel's hardness and strength at high temperatures. Other factors that can affect the heat resistance of special steel include the presence of impurities, surface conditions, and environmental factors. Impurities, such as sulfur and phosphorus, can reduce the steel's resistance to high temperatures by promoting the formation of brittle phases or facilitating oxidation. Surface conditions, such as roughness or the presence of cracks, can lead to localized heating and accelerated degradation. Environmental factors, such as the presence of corrosive gases or high humidity, can also influence the steel's heat resistance by promoting oxidation or corrosion processes. In summary, the heat resistance of special steel is influenced by its alloy composition, microstructure, heat treatment, impurities, surface conditions, and environmental factors. Understanding and optimizing these factors are crucial for developing special steel with superior heat resistance for various industrial applications.
- Q:Does special steel require special machining techniques?
- Yes, special steel often requires special machining techniques due to its unique properties and characteristics. It is typically harder, tougher, and more heat resistant compared to regular steel, making it more challenging to cut, shape, and form. Special machining techniques such as using high-speed tools, specific tool geometries, and advanced coolant systems may be necessary to achieve desired results and maintain the integrity of the special steel.
- Q:What grade of iron powder should be used for processing special steel? Are there any other elements on the request? How much are they?
- Special steel into high quality carbon steel, alloy steel, high alloy steel (alloy element is greater than 10%) three categories, including alloy steel and high alloy steel special steel production accounted for 70%.
- Q:How is special steel recycled?
- Special steel can be recycled through a process called electric arc furnace (EAF) recycling. In this method, the steel scrap is melted in an electric arc furnace, where impurities are removed and alloying elements are added to obtain the desired composition. The molten steel is then cast into new shapes or used to produce various steel products. This recycling process helps to conserve resources, reduce energy consumption, and minimize waste in the steel industry.
- Q:What are the common challenges in casting special steel?
- Some common challenges in casting special steel include achieving uniformity in composition and microstructure, controlling the cooling rate to prevent cracking and distortion, minimizing the presence of impurities and inclusions, and ensuring proper solidification and shrinkage control. Additionally, the high melting points and reactivity of special steel alloys can pose challenges in terms of handling and maintaining the desired chemistry throughout the casting process.
- Q:What are the properties of boron steel?
- Boron steel, also known as boron-alloyed steel, possesses several unique properties. It is exceptionally strong and has a high tensile strength, making it ideal for applications that require high-strength materials. Boron steel also exhibits good hardenability, meaning it can be hardened by heat treatment processes such as quenching and tempering. Additionally, it has excellent wear resistance and is often used in the manufacturing of cutting tools and wear-resistant components. Moreover, boron steel offers good weldability and formability, allowing it to be easily shaped and joined. Overall, the properties of boron steel make it a valuable material in various industries, including automotive, construction, and tool manufacturing.
- Q:Does special steel have any magnetic properties?
- Yes, special steel can have magnetic properties. The magnetic properties of special steel depend on its composition and processing. Some types of special steel are specifically designed to be magnetic, while others may have low magnetic permeability.
- Q:Can special steel be used in the automotive parts manufacturing industry?
- Yes, special steel can be used in the automotive parts manufacturing industry. Special steel offers high strength, durability, and resistance to corrosion, making it suitable for various automotive components such as engine parts, suspension systems, and body structures. Additionally, special steel can be tailored to meet specific requirements, allowing manufacturers to optimize performance and safety in automotive applications.
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Annealed,Hot Rolled&Forged 4130 Alloy Steel Bar
- 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
OKorder Financial Service
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