ASTM A36 Steel Equivalent Q235 Carbon Steel
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- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
ASTM A36 Steel Equivalent Q235 Carbon Steel
Product Information:
1.DIA:10mm-300mm
Length:4-12M
Quality:L.F+V.D etc
2. Chemical Elements
| Grade | C | Si | Mn | P | S | Cr | Ni | B |
| 1020 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | Max 0.030 | Max 0.030 | Max 0.25 | Max 0.30 | 0.0008-0.0030 |
| 1045 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | Max 0.030 | Max 0.030 | Max 0.25 | Max 0.30 | 0.0008-0.0030 |
3. Grade: ASTM A36 Q235
Hardness:156HB
Tensile strength:410MPA
Yield strength: 245MPA
elogation:25% Reduction of area:55% AKV(impact value):54J
Product Overviews:
| Product Name | Typical Grades | Diameter(mm) | Standard adopted |
| Carbon Steel | 20 (1020/S20C/C22) | Ø16-Ø300 | GB/SAE/JIS/DIN |
| 40 (1040/S40C/C40) | |||
| 45 (1045/S45C/C45) | |||
| Bearing Steel | GCr9 (51100/SUJ1) | Ø12-Ø250 | |
| GCr15 (52100/SUJ2/100Gr6) | |||
| GCr9SiMn (A485-Gr.1/SUJ3) | |||
| Cr-Mo Steel | 20Cr (5120/SCr420H/20Cr4) | Ø12-Ø250 | |
| 40Cr (5140/SCr440/41Cr4) | |||
| 42CrMo(4140/SCM440/42CrMo4) | |||
| Gear Steel | 20CrNiMo | Ø16-Ø600 | |
| 20CrMn(5115/SMnC420/20MnCr5) | |||
| 20CrNiMo(8620/SNCM220/20CrMiMo2) |
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Special steel and there is no uniform definition of the concept of special steel is generally considered to have a special chemical composition (alloying), using a special production process, with a special organization and performance to meet the special needs of the steel type. Compared with ordinary steel, special steel has a higher strength and toughness, physical properties, chemical properties, biocompatibility and process performance.
China and Japan, the EU definition of special steel closer, into the special steel quality carbon steel, alloy steel, high alloy steel (alloying elements greater than 10%) three categories, including steel and high-alloy special steel production accounted for 70%. The main advantages of special steel carbon structural steel, carbon tool steel, carbon spring steel, alloy spring steel, alloy steel, ball bearing steel, alloy tool steel, high alloy tool steel, high speed tool steel, stainless steel, heat-resistant steel , and high-temperature alloys, precision alloy, electric alloy. There are nearly 2,000 special steel grades, about 50,000 varieties and specifications in the world currently. In addition to a wide range of special steel outside, in the specification with ordinary steel also showed different characteristics. In addition to plates, tubes, wire, strip, rods and profiles outside, as well as composite materials, surface alloying material, surface treatment material, forging materials, precision casting, powder metallurgy products.
- Q: What are the different low-temperature grades of special steel?
- There are several different low-temperature grades of special steel that are designed to withstand extreme cold conditions. Some of the commonly used grades include: 1. Austenitic Stainless Steel: This grade of steel, such as 304 and 316, is known for its excellent corrosion resistance and high strength at low temperatures. It is commonly used in cryogenic applications, such as LNG storage tanks and cryogenic piping. 2. Ferritic Stainless Steel: Ferritic stainless steel grades like 410 and 430 are suitable for low-temperature applications due to their good ductility and resistance to stress corrosion cracking. They are often used in cryogenic environments where high strength and resistance to embrittlement are required. 3. Martensitic Stainless Steel: Martensitic stainless steel, such as 410 and 420, exhibits high strength and good toughness even at low temperatures. It is commonly used in applications that require high wear resistance and strength, such as valves and turbine blades in cryogenic systems. 4. Duplex Stainless Steel: Duplex stainless steel grades like 2205 and 2507 offer a combination of high strength, excellent corrosion resistance, and good toughness at low temperatures. They are widely used in offshore and subsea applications where low-temperature performance and resistance to pitting and crevice corrosion are critical. 5. Nickel-Based Alloys: Nickel-based alloys, such as Inconel and Hastelloy, are known for their exceptional corrosion resistance and high strength at both low and high temperatures. These alloys are extensively used in cryogenic applications, including liquefied natural gas (LNG) processing plants, as well as aerospace and chemical processing industries. Each of these low-temperature grades of special steel offers unique properties and advantages, making them suitable for various applications in extreme cold conditions. The selection of the appropriate grade depends on factors like the specific temperature range, required corrosion resistance, strength requirements, and environmental conditions.
- Q: What are the common challenges in welding titanium alloys?
- Welding titanium alloys presents various difficulties due to the unique properties of titanium. Firstly, the melting point of titanium is exceptionally high, reaching approximately 1668°C (3034°F). This necessitates the use of specialized equipment and techniques to attain optimal welding conditions. Moreover, this high melting point increases the risk of overheating, which can lead to distortion or warping of the welded components. Another challenge lies in titanium's strong reactivity with oxygen, nitrogen, and hydrogen. These gases can easily contaminate the weld pool during the welding process, resulting in the formation of brittle and porous welds. Therefore, it is essential to take rigorous measures such as utilizing inert shielding gases like argon or helium, maintaining a high level of cleanliness, and employing proper welding techniques like gas tungsten arc welding (GTAW) to minimize contamination and achieve sound welds. Titanium also exhibits a significant affinity for carbon, which can cause the formation of brittle intermetallic compounds during welding. To prevent this, it is crucial to employ low-carbon filler metals and ensure appropriate heat input to avoid carbon diffusion into the weld zone. Furthermore, titanium alloys possess low thermal conductivity, causing heat generated during welding to concentrate in a small area. This concentration leads to localized overheating and potential damage. Hence, it is vital to control heat input and utilize suitable welding techniques to distribute heat evenly, thereby avoiding overheating and preserving the integrity of the welded joint. Lastly, titanium alloys display a high coefficient of thermal expansion, resulting in significant thermal expansion and contraction throughout the welding process. This can lead to distortion and residual stresses in the welded components. To mitigate these issues, preheating and post-weld heat treatment may be required to minimize distortion and relieve residual stresses. In conclusion, the challenges in welding titanium alloys encompass a high melting point, reactivity with gases, potential contamination, formation of intermetallic compounds, low thermal conductivity, and significant thermal expansion. By comprehending these challenges and implementing suitable welding techniques, it is possible to overcome these difficulties and achieve high-quality welds in titanium alloys.
- Q: What are the specific requirements for special steel used in the nuclear fuel industry?
- The nuclear fuel industry imposes stringent and demanding requirements on special steel. These requirements are crucial to guarantee the safety and reliability of nuclear power plants. Here are some of the key specifications for special steel used in this sector: 1. Withstanding high temperatures: The special steel employed in the nuclear fuel industry must have the ability to endure high temperatures without compromising its structural integrity. This is of utmost importance as nuclear reactors generate intense heat during their operation. 2. Resisting corrosion: The nuclear fuel environments can be highly corrosive due to the presence of hot and pressurized water, radiation, and chemical reactions. Special steel used in this industry must exhibit exceptional resistance to corrosion in order to prevent deterioration and maintain safety. 3. Resisting radiation: The nuclear fuel industry involves exposure to radiation. Special steel must possess outstanding resistance to radiation damage and embrittlement in order to ensure long-term structural integrity and avoid any risk of failure. 4. High strength and toughness: Special steel used in the nuclear fuel industry should possess high strength and toughness to withstand the extreme conditions experienced within a nuclear reactor. This guarantees that the steel can endure the pressure and stress exerted on it during reactor operation. 5. Low neutron absorption: Neutron absorption is a critical factor in nuclear reactors. Special steel used in this industry should exhibit low neutron absorption properties to prevent interference with nuclear reactions and maintain reactor efficiency. 6. Stringent quality control and traceability: The manufacturing and fabrication of special steel for the nuclear fuel industry must conform to strict quality control procedures to ensure consistency and reliability. Traceability is also pivotal in identifying the origin and history of the steel, enabling comprehensive inspections and assessments. Meeting these specific requirements is crucial for the safe and efficient operation of nuclear power plants. Special steel used in the nuclear fuel industry must undergo rigorous testing, certification, and quality control processes to ensure compliance with these stringent specifications.
- Q: How does special steel perform in abrasive environments?
- Special steel is specifically designed to perform exceptionally well in abrasive environments. Its unique composition and manufacturing process make it highly resistant to wear, corrosion, and impact caused by abrasive materials. It maintains its strength, durability, and performance even under extreme conditions, making it an ideal choice for applications such as mining, construction, and manufacturing industries where abrasive environments are prevalent.
- Q: What are the main characteristics of electrical steel?
- The main characteristics of electrical steel include high magnetic permeability, low electrical resistivity, and low hysteresis loss. It is specifically designed to efficiently conduct and transform electrical energy, making it ideal for use in transformers, motors, and generators.
- Q: What are the different surface finishing techniques for special steel parts?
- There are several surface finishing techniques that can be used for special steel parts to enhance their appearance, protect them from corrosion, and improve their overall performance. Some of the commonly used techniques include: 1. Polishing: This technique involves using abrasives to create a smooth and glossy surface on the steel part. It not only enhances the aesthetic appeal but also improves the part's resistance to corrosion. 2. Plating: Plating is a process that involves depositing a layer of metal onto the surface of the steel part. Common plating options include chrome, nickel, and zinc. This technique provides additional protection against corrosion, improves wear resistance, and can also give the part a desired color or finish. 3. Powder coating: Powder coating is a method where a dry powder is applied to the surface of the steel part electrostatically and then cured under heat. The powder melts and forms a hard, durable, and attractive coating. This technique provides excellent resistance to corrosion, impact, and chemicals. 4. Anodizing: Anodizing is primarily used for aluminum, but it can also be applied to some special steel parts. It involves creating a controlled oxide layer on the surface of the part, which enhances its corrosion resistance, improves its appearance, and can provide an insulation layer. 5. Passivation: Passivation is a chemical process that removes free iron and other contaminants from the surface of the steel part. It helps prevent corrosion and improves the part's resistance to staining or discoloration. 6. Heat treatment: Heat treatment is a process that involves heating and cooling the steel part to alter its physical and mechanical properties. It can improve hardness, strength, and toughness, while also providing a desired surface finish. 7. Electropolishing: Electropolishing is an electrochemical process that removes a thin layer of metal from the surface of the steel part. It helps eliminate surface imperfections, smoothens the part, and improves its corrosion resistance. It is important to choose the appropriate surface finishing technique based on the specific requirements of the special steel part, such as its function, desired appearance, and environmental conditions it will be exposed to.
- Q: How does spring steel maintain its elasticity?
- Spring steel maintains its elasticity due to its unique composition and heat treatment process. It is made from a high carbon steel alloy, which provides it with exceptional strength and flexibility. Additionally, spring steel undergoes a specific heat treatment called quenching and tempering. During this process, the steel is heated to a high temperature and then rapidly cooled, which creates a hardened structure. This hardened structure allows spring steel to withstand repeated bending and twisting without permanently deforming. Overall, the combination of high carbon content and heat treatment enables spring steel to maintain its elasticity and resilience.
- Q: How does special steel contribute to improving product functionality?
- Special steel contributes to improving product functionality in several ways. Firstly, special steel has superior strength and durability compared to regular steel, allowing products to withstand higher loads and stresses. This means that products made with special steel can perform better in demanding conditions, ensuring their longevity and reliability. Additionally, special steel offers enhanced corrosion resistance, which is crucial for products that are exposed to harsh environments or chemicals. This resistance helps prevent rust and degradation, extending the lifespan of the product and maintaining its functionality. Furthermore, special steel can be tailored to have specific characteristics, such as high heat resistance or excellent electrical conductivity. This customization allows manufacturers to design products with improved performance in specific applications, such as high-temperature engines or electrical components. In summary, special steel's superior strength, durability, corrosion resistance, and customizable properties significantly contribute to improving the functionality of various products, ensuring higher performance, longer lifespan, and increased reliability.
- Q: How does special steel contribute to the strength of structures?
- Special steel contributes to the strength of structures by providing enhanced mechanical properties such as higher tensile strength, improved toughness, and increased resistance to corrosion. These properties allow special steel to bear heavier loads, withstand extreme weather conditions, and maintain structural integrity over time, making it a crucial material choice for constructing durable and reliable buildings, bridges, and other infrastructure.
- Q: What are the main characteristics of magnetic steel?
- Magnetic steel, also known as ferromagnetic steel, possesses several key characteristics that make it highly suitable for various industrial applications. Firstly, magnetic steel exhibits a strong magnetic field, which allows it to attract and hold magnetic materials. This property is crucial in the manufacturing of electrical devices, such as motors, transformers, and generators, where the steel is used to create magnetic circuits and enhance the efficiency of electromagnetic processes. Another important characteristic of magnetic steel is its high saturation magnetization, meaning it can reach a maximum magnetic flux density under a given magnetic field strength. This property ensures that magnetic steel can retain a strong magnetic field even when exposed to external forces or fluctuations in the magnetic field. This stability and reliability make it ideal for applications that require consistent magnetic performance. Furthermore, magnetic steel possesses excellent electrical conductivity, which is critical in applications where the steel is used as a core material for electrical circuits. The high electrical conductivity of magnetic steel minimizes energy losses and allows for effective power transmission and distribution. In addition to these properties, magnetic steel also exhibits a high coercivity, which is the ability to resist demagnetization. This characteristic is crucial in applications where the steel is subjected to fluctuating magnetic fields or mechanical stresses, as it ensures that the magnetic properties remain stable over time. Overall, the main characteristics of magnetic steel include a strong magnetic field, high saturation magnetization, excellent electrical conductivity, and high coercivity. These properties make magnetic steel an essential material in various industries, including electrical engineering, power generation, and magnetic product manufacturing.
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ASTM A36 Steel Equivalent Q235 Carbon Steel
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 30 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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