Equal_Unequal Black -Alvanized Steel Angle Bar with Competitive Price
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Carbon Steel
Shape:
Steel Angle
Detailed Information
Name | Equal/Unequal Angle Steel Bar |
Shape | Equal/Unequal Angle |
Standard | GB/ASTM/SAE/AISI/DIN/JIS/EN/BS |
Surface Treatment: | Black/Peeling/Polished/Machined |
Delivery Condition: | Hot Rolled or Forged/Peeled or Black Surface |
Test | SGS/UT 100% Elements Testing |
Certificate: | ISO/Mill Certificate |
Service: | 24 hours online service / |
more than 20 years trading and manufacture | |
Quality Assurance: | the third party inspection, such as SGS, BV, TUV…etc. is acceptable |
Packaging Details: | Seaworthy Packaging or as per customer's packing instruction |
Specification
| 75*75 90 degree equal steel angle bar, angle iron steel |
Grade | Q195, Q215, Q235, Q345, SS400, A36, S235JR, ST37,etc |
Standard | AISI, ASTM, BS, DIN, GB, JIS, etc |
Equal Angle | 1)Type: 2#-20# |
2)Size: 20mm-200mm | |
3)Thickness: 3.0mm-18mm | |
Unequal Angle | 1)Type: 2.5/1.6-20/12.5 |
2)Long Side: 25-200mm | |
3)Short Side: 16-125mm | |
4)Thickness: 4.0-18mm | |
Length | 5.8m-12.0m or as your requirement |
Surface | Perforated/galvanized/black |
Inspection | BV,SGS,MTC,etc. |
Technique | Hot rolled |
Company Introduction
CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.
With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.
Packaging & Delivery
Packaging Detail | Sea worthy packing /as per customer's packing instruction |
Delivery Detail | 15 ~ 40 days after receiving the deposit |
Products Show
FAQ
Are you a trading company or manufacturer? | Manufacturer |
What’s the MOQ? | 3 metric ton |
What’s your delivery time? | 15-35 days after downpayment received |
Do you Accept OEM service? | Yes |
what’s your delivery terms? | FOB/CFR/CIF |
What's the Payment Terms? | 30% as deposit,70% before shipment by T/T |
Western Union acceptable for small amount. | |
L/C acceptable for large amount. | |
Scrow ,Paybal,Alipay are also ok | |
Why choose us? | Chose happens because of quality, then price, We can give you both. |
Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals. | |
What's your available port of Shipment? | Main Port, China |
What’s your featured services? | Our service formula: good quality+ good price+ good service=customer's trust |
Where are your Market? | Covering more than 160 countries in the world |
- Q: What are the different low-temperature grades of special steel?
- Special steel includes several low-temperature grades designed to withstand extreme cold conditions. Among the commonly used grades are the following: 1. Austenitic Stainless Steel: This grade, such as 304 and 316, is renowned for its excellent corrosion resistance and high strength in low temperatures. It finds frequent use in cryogenic applications like LNG storage tanks and cryogenic piping. 2. Ferritic Stainless Steel: Ferritic stainless steel grades, including 410 and 430, possess good ductility and resistance to stress corrosion cracking, making them suitable for low-temperature applications. They are often utilized in cryogenic environments that require both high strength and resistance to embrittlement. 3. Martensitic Stainless Steel: Martensitic stainless steel, such as 410 and 420, delivers high strength and good toughness even in low temperatures. It is commonly employed in applications demanding exceptional 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 combine high strength, excellent corrosion resistance, and good toughness in low temperatures. They are extensively employed in offshore and subsea applications where low-temperature performance and resistance to pitting and crevice corrosion are crucial. 5. Nickel-Based Alloys: Nickel-based alloys, such as Inconel and Hastelloy, are renowned for their exceptional corrosion resistance and high strength in both low and high temperatures. They are widely used in cryogenic applications, including liquefied natural gas (LNG) processing plants, as well as the aerospace and chemical processing industries. Each of these low-temperature grades of special steel offers distinct properties and advantages, making them suitable for various applications in extreme cold conditions. The appropriate grade selection depends on factors such as the specific temperature range, required corrosion resistance, strength requirements, and environmental conditions.
- 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 does special steel perform in high-pressure and high-temperature environments?
- Special steel is specifically designed to perform exceptionally well in high-pressure and high-temperature environments. It possesses unique properties that enable it to withstand extreme conditions without undergoing deformation, corrosion, or failure. One of the primary characteristics of special steel is its high strength. It is engineered to have superior mechanical properties, such as excellent tensile strength, which allows it to resist the immense pressure exerted on it in high-pressure environments. This strength ensures that the steel can maintain its structural integrity and not buckle or collapse under the immense force. Furthermore, special steel is highly resistant to corrosion and oxidation, even at high temperatures. This resistance is crucial in high-temperature environments where the presence of hot gases, steam, or caustic chemicals can cause regular steel to degrade rapidly. Special steel's resistance to corrosion and oxidation ensures its longevity and reliability, making it an ideal choice for applications in such challenging conditions. Additionally, special steel exhibits excellent heat resistance. It can withstand extreme temperatures without losing its mechanical properties, such as strength and hardness. This characteristic is crucial in high-temperature environments where regular steel would weaken, soften, or even melt. Special steel's ability to maintain its structural stability even in extreme heat ensures the safety and reliability of equipment and structures operating in such conditions. Moreover, special steel is known for its excellent thermal conductivity. This property allows it to efficiently transfer heat away from the high-temperature environment, preventing localized hotspots and thermal stress. By effectively dissipating heat, special steel ensures the overall stability and performance of equipment and structures under high-pressure and high-temperature conditions. In summary, special steel performs exceptionally well in high-pressure and high-temperature environments due to its high strength, resistance to corrosion and oxidation, heat resistance, and excellent thermal conductivity. These properties make special steel a reliable and durable material for various applications, including power generation, oil and gas exploration, aerospace engineering, and many more.
- Q: Are there any international standards for special steel?
- Yes, there are international standards for special steel. The most widely recognized and accepted international standards for special steel are set by the International Organization for Standardization (ISO). ISO develops and publishes a range of standards that cover various aspects of special steel, including composition, properties, testing methods, and quality requirements. These standards ensure that special steel produced by different manufacturers from different countries meet the same minimum quality and performance criteria. In addition to ISO, there are also other organizations and standards bodies that have their own specific standards for special steel, such as the American Society for Testing and Materials (ASTM) and the European Committee for Iron and Steel Standardization (ECISS). These international standards provide a common framework for the production, trade, and use of special steel across different countries and industries, promoting consistency, reliability, and quality assurance.
- Q: Can special steel be used in extreme weather conditions?
- Yes, special steel can be used in extreme weather conditions. Special steel is known for its excellent strength, durability, and corrosion resistance, making it a suitable material for various applications, including those in extreme weather conditions. For example, stainless steel, which is a type of special steel, is widely used in environments with high moisture or salt content, such as coastal areas or marine structures. It can withstand the corrosive effects of saltwater and resist rusting, making it ideal for prolonged exposure to extreme weather conditions. Additionally, special steel alloys can also be specifically designed to withstand extreme temperatures, such as those found in arctic or desert environments. These alloys can maintain their mechanical properties and structural integrity even in extreme cold or hot temperatures. Overall, special steel is a versatile material that can be utilized in various industries and applications, including those in extreme weather conditions, due to its exceptional strength, durability, and resistance to corrosion.
- Q: What is the process of manufacturing special steel?
- The process of manufacturing special steel involves several steps to ensure the production of high-quality and durable steel with specific properties. 1. Raw Materials Selection: The first step is to carefully select the raw materials required for making special steel. This includes iron ore, coal, and other alloying materials such as chromium, nickel, and manganese, depending on the desired properties of the final product. 2. Melting: The selected raw materials are then melted in a large furnace, often through the use of electric arc furnaces or basic oxygen furnaces. These furnaces heat the raw materials to extremely high temperatures, typically around 1,600 to 2,000 degrees Celsius, to transform them into molten metal. 3. Refining: Once the raw materials are melted, the molten metal undergoes a refining process to remove impurities. This is done through techniques like degassing, desulphurization, and deoxidation, ensuring that the steel is free from unwanted elements that may negatively impact its properties. 4. Alloying: After refining, alloying elements are added to the molten metal to achieve the desired properties. These elements can modify the steel's strength, hardness, corrosion resistance, and other characteristics. The specific alloying elements and their proportions depend on the intended application of the special steel. 5. Continuous Casting: The molten steel is then poured into a continuous casting machine, which solidifies it into semi-finished products called billets, blooms, or slabs. This continuous casting process ensures a consistent and uniform structure throughout the steel. 6. Hot Rolling: The semi-finished products are then reheated and passed through a series of hot rolling mills. This process involves reducing the thickness and shaping the steel into various forms such as bars, rods, plates, or sheets, depending on the intended use. 7. Heat Treatment: After hot rolling, the steel may undergo heat treatment processes such as annealing, quenching, tempering, or case hardening. These treatments help to further enhance the mechanical properties of the steel, such as its hardness, toughness, and ductility. 8. Finishing: The final step involves surface finishing and quality control measures. The steel is inspected for any defects or imperfections that may have occurred during the manufacturing process. Surface treatments like pickling or galvanizing can also be applied to enhance the steel's appearance and protect it from corrosion. Overall, the process of manufacturing special steel is a complex and precise operation that requires careful selection of raw materials, melting, refining, alloying, continuous casting, hot rolling, heat treatment, and finishing. This ensures that the resulting steel meets the specific requirements and performance characteristics demanded by various industries.
- Q: What are the limitations of special steel?
- Some limitations of special steel include its high cost and limited availability, as well as the difficulty in shaping and processing it. Additionally, special steel may have lower tensile strength compared to other materials and can be prone to corrosion if not properly maintained.
- Q: What are the characteristics of special stainless steel?
- Special stainless steel, also known as superalloys, possess several unique characteristics. Firstly, they exhibit exceptional resistance to corrosion, making them highly durable and long-lasting in harsh environments. Additionally, they have high strength and toughness, allowing them to withstand extreme temperatures and pressures. Special stainless steel also demonstrates excellent heat resistance, making it suitable for applications in high-temperature environments. Furthermore, these alloys often exhibit superior chemical stability, resistance to wear and tear, and excellent mechanical properties, making them highly versatile for various industrial applications.
- Q: What are the different surface hardening methods used for special steel?
- Special steel can be enhanced in hardness and wear resistance through various surface hardening methods. These techniques are employed to cater to specific applications. Some commonly utilized methods for surface hardening special steel are as follows: 1. Carburizing: By introducing carbon into the steel's surface via heating it in a carbon-rich environment, such as a carbon-containing gas or liquid, carburizing is performed. The steel absorbs the carbon, resulting in a high-carbon layer on the surface. This process enhances the steel's hardness and wear resistance, making it suitable for applications demanding strength and durability. 2. Nitriding: Nitriding involves introducing nitrogen into the steel's surface. This is achieved by heating the steel in an atmosphere of ammonia gas. The nitrogen diffuses into the steel, forming a nitride layer on the surface. Nitrided steel exhibits increased hardness, improved wear resistance, and enhanced fatigue strength. It is commonly used in applications requiring high surface hardness, like gears, bearings, and tools. 3. Induction hardening: Induction hardening is a localized surface hardening method that entails heating specific areas of the steel using electromagnetic induction. The heated regions are then rapidly quenched, resulting in a hardened surface layer. Induction hardening is employed for components demanding high surface hardness, such as shafts, gears, and camshafts. It provides precise control over the hardened area, leading to improved wear resistance and fatigue strength. 4. Flame hardening: Flame hardening involves heating the steel surface using a high-temperature flame and quickly quenching it. This process creates a hard surface layer while leaving the core of the steel relatively unchanged. Flame hardening is commonly used for large and intricately shaped components, including axles, crankshafts, and machine tool slides. 5. Laser hardening: Laser hardening is a precise and localized surface hardening method that utilizes a high-energy laser beam to heat and melt the steel's surface. By moving the laser beam across the surface, a hardened layer is formed. Laser hardening provides precise control over the hardened area, resulting in improved wear resistance and fatigue strength. It is commonly applied to small and intricate components, such as cutting tools, molds, and dies. These are merely a few examples of the surface hardening methods frequently employed for special steel. Each method offers distinct advantages and is selected based on the specific requirements of the application. By utilizing these surface hardening techniques, special steel can be customized to meet the needs of various industries, including automotive, aerospace, and manufacturing.
- Q: What are the requirements for special steel used in chemical processing?
- The requirements for special steel used in chemical processing include high corrosion resistance, exceptional strength and durability, resistance to high temperatures and extreme pressure, and compatibility with the specific chemicals being processed.
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Equal_Unequal Black -Alvanized Steel Angle Bar with Competitive Price
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 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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