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
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
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
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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Product show：
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: How does special steel contribute to the energy storage sector?
- Special steel contributes to the energy storage sector by providing crucial components for the construction of various energy storage systems. For instance, it is used in the manufacturing of high-performance batteries, such as lithium-ion batteries, which are widely utilized in electric vehicles and renewable energy storage solutions. The exceptional strength, durability, and corrosion resistance properties of special steel make it ideal for ensuring the longevity and efficiency of these energy storage technologies. Additionally, special steel is also employed in the construction of infrastructure such as storage tanks and pipelines, which are essential for the transportation and distribution of energy resources. Overall, special steel plays a pivotal role in enhancing the reliability and performance of energy storage systems, thereby facilitating the transition towards a more sustainable and efficient energy future.
- Q: How is ultra-high-strength alloy steel used in the aerospace industry?
- Ultra-high-strength alloy steel is extensively used in the aerospace industry due to its exceptional strength-to-weight ratio. It is commonly employed in the manufacturing of aircraft components such as landing gear, engine mounts, and structural parts. This steel's remarkable strength helps enhance the overall structural integrity of aircraft, ensuring they can withstand extreme conditions and stresses encountered during flight. Additionally, its lightweight nature contributes to reducing the weight of the aircraft, which in turn improves fuel efficiency and increases payload capacity.
- Q: What are the different surface finishing techniques for special steel parts?
- There are several surface finishing techniques for special steel parts, including electroplating, powder coating, painting, polishing, and passivation. Each technique offers unique benefits and can be chosen based on the desired appearance, corrosion resistance, durability, and functionality of the steel parts.
- Q: What are the main applications of special steel in the chemical processing industry?
- Special steel is widely used in the chemical processing industry due to its unique properties and capabilities. Some of the main applications of special steel in this industry include the manufacturing of storage tanks, pipelines, and reactors. Special steel is resistant to corrosion, high temperatures, and chemical reactions, making it ideal for handling and storing various chemicals and substances. Additionally, special steel is also utilized in the construction of equipment used in the separation, purification, and filtration processes in chemical plants. Overall, the main applications of special steel in the chemical processing industry revolve around its durability, resistance to corrosion, and ability to withstand harsh chemical environments.
- Q: What is the significance of special steel in the medical field?
- Special steel, also known as medical grade steel, plays a crucial role in the medical field due to its unique properties and significance. It is specifically designed and manufactured to meet the stringent requirements of the healthcare industry. The significance of special steel in the medical field can be understood through the following points: 1. Biocompatibility: Special steel is biocompatible, meaning it is non-toxic and does not provoke an adverse reaction when in contact with the human body. This makes it an ideal material for medical devices such as surgical instruments, implants, and orthopedic tools. 2. Corrosion resistance: Special steel is highly resistant to corrosion and rust, ensuring the longevity and durability of medical instruments. Instruments used in surgical procedures need to be repeatedly sterilized, and the corrosive nature of sterilization agents can degrade ordinary steel. Special steel, with its superior corrosion resistance, can withstand these harsh conditions, reducing the risk of contamination and maintaining the integrity of medical equipment. 3. Mechanical properties: Special steel possesses excellent mechanical properties, such as high strength, toughness, and ductility. These characteristics are essential for medical devices, as they need to withstand the stresses and strains of surgical procedures, maintain their shape, and provide reliable performance. 4. Sterilization compatibility: Special steel can withstand various sterilization methods, including steam sterilization, ethylene oxide sterilization, and gamma radiation. This ensures that medical instruments made from special steel can be effectively sterilized, preventing the transmission of infections and reducing the risk of contamination during surgeries. 5. Precision manufacturing: Special steel can be fabricated into intricate shapes and sizes, allowing the production of precise medical instruments. Its superior machinability enables the creation of fine and sharp edges, crucial for surgical tools used in delicate procedures. 6. Antibacterial properties: Some special steels, such as stainless steel, possess inherent antibacterial properties. This characteristic is particularly important in the medical field, where the prevention of infections is paramount. Instruments made from antibacterial special steel can inhibit the growth of bacteria, minimizing the risk of post-operative complications. In summary, the significance of special steel in the medical field lies in its biocompatibility, corrosion resistance, mechanical properties, sterilization compatibility, precision manufacturing, and potential antibacterial properties. These qualities make special steel an indispensable material for manufacturing medical devices, ensuring their reliability, durability, and safety for both healthcare professionals and patients.
- Q: How does special steel contribute to reducing product waste?
- Special steel contributes to reducing product waste in several ways. Firstly, it is known for its durability and strength, which means that products made from special steel have a longer lifespan and are less likely to break or wear out quickly. This reduces the need for frequent replacements, thereby minimizing product waste. Additionally, special steel can be fabricated into complex shapes and sizes, allowing manufacturers to optimize material usage and minimize waste during production. The ability to customize special steel to specific requirements also ensures that products are designed with the right dimensions and strength, reducing the chances of defects or inefficiencies that could lead to waste. Moreover, special steel often has superior corrosion resistance and other protective properties, making it suitable for applications where products are exposed to harsh environments or frequent use. This reduces the likelihood of premature degradation or damage, further extending the product's lifespan and reducing waste. Overall, special steel's durability, customization capabilities, and protective properties play a significant role in reducing product waste by increasing product longevity, optimizing material usage, and minimizing defects or damage.
- Q: How does special steel contribute to the defense aerospace industry?
- Special steel plays a critical role in the defense aerospace industry by providing the necessary strength, durability, and resistance to extreme conditions that are essential for the design and production of military aircraft and defense systems. One of the key contributions of special steel is its ability to withstand high temperatures and pressures, making it suitable for the construction of engine components such as turbine blades, exhaust systems, and combustion chambers. These parts are subjected to intense heat and stress during operation, and special steel ensures they can withstand these extreme conditions without compromising performance or safety. Furthermore, special steel is utilized in the manufacturing of structural components in military aircraft, such as landing gear, wings, and fuselage sections. These components need to possess exceptional strength and toughness to withstand the harsh conditions encountered during flight and combat operations. Special steel provides the necessary mechanical properties to ensure these components can withstand the forces and impacts they may experience. Another crucial aspect where special steel contributes to the defense aerospace industry is its corrosion resistance. Military aircraft are often exposed to harsh environments, including saltwater and corrosive chemicals. Special steel, through the addition of corrosion-resistant alloys, helps protect critical parts from corrosion, ensuring the longevity and reliability of the aircraft. Moreover, special steel's high strength-to-weight ratio allows for the production of lightweight yet robust components in defense aerospace applications. This characteristic is highly desirable in the aerospace industry as it enables the design of aircraft that are more fuel-efficient, faster, and capable of carrying higher payloads. By reducing weight, special steel contributes to the overall performance and efficiency of military aircraft. In conclusion, special steel is an indispensable material in the defense aerospace industry. Its unique properties, such as high temperature resistance, strength, corrosion resistance, and lightweight characteristics, enable the production of reliable, high-performance military aircraft and defense systems. Special steel plays a crucial role in ensuring the safety, efficiency, and effectiveness of the defense aerospace industry.
- Q: What are the requirements for special steel used in oil and gas equipment manufacturing?
- Due to the demanding operating conditions and harsh environments that oil and gas equipment encounters, the requirements for special steel used in their manufacturing are extremely strict. These materials must meet several key requirements: 1. Excellent resistance to corrosion is essential for the special steel used in oil and gas equipment. This is particularly important in the presence of corrosive fluids like oil, gas, and saltwater. By preventing degradation and premature failure, corrosion resistance ensures the equipment's longevity. 2. The steel must possess high strength and toughness to withstand the extreme pressures, temperatures, and mechanical stresses encountered during oil and gas operations. This ensures that the equipment can perform reliably in demanding conditions. 3. Special steel used in oil and gas equipment must maintain its mechanical properties and structural integrity even at high temperatures, as these processes often involve elevated temperatures. 4. Weldability is an important aspect of special steel used in oil and gas equipment manufacturing. It should allow for efficient and reliable welding processes without compromising the equipment's overall strength and integrity. 5. Good fatigue resistance properties are necessary for special steel used in oil and gas equipment, as cyclic loading can lead to fatigue failure if the material is not designed to withstand repetitive stresses. 6. In applications like offshore drilling or arctic environments, where extremely low temperatures are encountered, the special steel should exhibit excellent toughness and ductility to prevent brittle fracture. 7. The chemical composition of the special steel must be tightly controlled to ensure consistent and predictable material properties. This involves strict control over the levels of various alloying elements, impurities, and trace elements to meet the specific requirements of the oil and gas industry. Meeting these requirements is crucial for the safe and reliable operation of oil and gas equipment. Special steel manufacturers collaborate closely with industry standards and specifications to develop and provide materials that meet these demanding requirements, ensuring the integrity and performance of the equipment in the oil and gas sector.
- Q: How is special steel classified?
- Special steel is classified based on its chemical composition, mechanical properties, and intended applications. It can be categorized into various types such as carbon steel, alloy steel, stainless steel, tool steel, and high-speed steel. These classifications help determine the steel's suitability for specific industrial uses and ensure its quality and performance.
- Q: What are the different methods for improving the corrosion resistance of special steel?
- There are multiple techniques available to enhance the corrosion resistance of special steel. 1. Alloying: Adding alloying elements, like chromium, nickel, and molybdenum, to the steel composition is a widely used method. These elements create a protective layer on the steel surface, preventing corrosion. For instance, stainless steel contains a substantial amount of chromium, which forms a passive film that shields the steel from corrosive surroundings. 2. Surface treatments: Diverse surface treatments can be applied to special steel to augment its corrosion resistance. These treatments include electroplating, hot-dip galvanizing, and chemical passivation. Electroplating involves coating the steel with a layer of zinc or nickel, serving as a sacrificial anode that safeguards the steel from corrosion. Hot-dip galvanizing entails immersing the steel in molten zinc to form a durable and corrosion-resistant layer. Chemical passivation involves treating the steel with a solution that eliminates surface impurities and forms a protective oxide layer. 3. Protective coatings: The application of protective coatings can considerably enhance the corrosion resistance of special steel. Coatings like paint, epoxy, or polyurethane act as barriers, preventing moisture and corrosive substances from contacting the steel surface. These coatings can be applied through spray, dip, or powder coating methods. 4. Heat treatment: Modifying the microstructure of special steel through heat treatment improves its corrosion resistance. Processes like annealing, quenching, and tempering can alter the steel's properties, making it more resistant to corrosion. Heat treatment can also alleviate internal stresses that contribute to corrosion. 5. Environmental control: Controlling the environment in which the special steel is utilized can also aid in improving its corrosion resistance. This includes maintaining appropriate humidity levels, controlling pH, avoiding exposure to corrosive chemicals, and implementing effective ventilation systems. By minimizing the exposure of special steel to corrosive elements, its corrosion resistance can be enhanced. In conclusion, a combination of these methods can be employed to enhance the corrosion resistance of special steel, ensuring its durability and performance in corrosive environments.
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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
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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