Steel Rebar Size for Construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 m.t./month
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Specification
Type:
Carbon Steel
Shape:
Steel Round Bar
Steel Rebar Size for Construction
Description of Steel Rebar Size:
1, Diameter: 5.5mm-10mm rounds reinforcing steel bar
10m- 40 rods reinforcing Steel Rebar Size
2, Length: 6m, 9m, 12m or customized
3, Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN
OEM technology - send detailed technical parameters for accurate quotation.
2, Produce Process: smelt iron - EAF smelt billet - ESR smelt billet -
hot rolled or forged to get the steel round bar and plate
3, Heat Treatment: annealing, normalizing, tempering, quenching
4, Surface Treatment: Black
5, Quality Assurance: We accept third party inspection for all orders.
You can ask testing organizations such as SGS, BV, etc. to test our products before shipping.
Chemical Composition of Steel Rebar Size:
Grade | Technical data of the original chemical composition(%) | |||||
Reinforcing steel bar HRB335 | C | Mn | Si | S | P | B |
≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | >0.0008 | |
Physics Capability | ||||||
Yield Strength(N/cm2) | Tensile Strength(N/cm2) | Elongation(%) | ||||
≥ 335 | ≥490 | ≥16 | ||||
Reinforcing steel bar HRB400 | C | Mn | Si | S | P | B |
≤0.25 | ≤0.16 | ≤0.80 | ≤0.045 | ≤0.045 | 0.04-0.12 | |
Physics Capability | ||||||
Yield Strength(N/cm2) | Tensile Strength(N/cm2) | Elongation(%) | ||||
≥ 400 | ≥ 570 | ≥ 14 | ||||
Product Show of Steel Rebar Size:
Workshop
Company Information:
CNBM International Corporation is the most important trading platform of CNBM group.
Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.
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, Factory or Trading Company?
CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.
4, Payment Terms?
30% TT as deposit and 70% before delivery.
Irrevocable L/C at sight.
5, Trading Terms?
EXW, FOB, CIF, FFR, CNF
6, After-sale Service?
CNBM 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.
Contact Us:
- Q: Can special steel be used in the defense sector?
- Yes, special steel can be used in the defense sector. Special steel refers to alloys or compositions that are specifically designed to possess certain properties, such as high strength, hardness, resistance to corrosion, or heat resistance. These properties make special steel suitable for various defense applications, including the construction of armored vehicles, naval vessels, aircraft, and weaponry. In the defense sector, special steel can be used to manufacture components and structures that require exceptional strength and durability. For example, it can be used in the production of armor plates for tanks and armored vehicles, which need to withstand high impact and ballistic threats. Special steel can also be utilized in the construction of naval vessels, where it provides resistance to corrosion and enhances the overall structural integrity. Furthermore, special steel is crucial in the defense industry for the manufacturing of aircraft parts and weaponry. Aircraft components, such as landing gear, engine parts, and structural elements, require high-strength materials to ensure safe and reliable operation. Special steel alloys can provide the necessary strength and resistance to extreme conditions, such as high temperatures and pressures, making them ideal for these applications. Moreover, special steel can be used in the production of various types of weapons, including firearms and blades. Its excellent strength and hardness properties make it suitable for manufacturing gun barrels, bulletproof vests, and knives used by military personnel. In summary, special steel is highly valued in the defense sector due to its exceptional properties, including strength, hardness, corrosion resistance, and heat resistance. It finds extensive applications in the construction of armored vehicles, naval vessels, aircraft, and weaponry, ensuring the safety, durability, and effectiveness of military equipment.
- Q: How does special steel perform in abrasive wear conditions?
- Special steel is specifically designed to perform exceptionally well in abrasive wear conditions. Its unique composition and manufacturing process make it highly resistant to the detrimental effects of abrasion. The presence of alloying elements such as chromium, manganese, and molybdenum in special steel significantly enhances its hardness and toughness. These elements help to form carbides within the steel matrix, which act as barriers against abrasion. The carbides effectively resist the forces exerted by abrasive particles, preventing them from causing significant damage to the steel surface. Furthermore, special steel undergoes specialized heat treatment processes such as quenching and tempering, which further enhance its resistance to abrasive wear. These processes not only increase the hardness of the steel but also improve its overall toughness and durability. As a result, special steel is capable of withstanding high levels of abrasion without experiencing significant wear or deterioration. In addition to its exceptional mechanical properties, special steel also exhibits excellent corrosion resistance. This is achieved through the addition of elements such as chromium, which forms a protective oxide layer on the steel surface. This oxide layer acts as a barrier, preventing corrosive substances from reaching the underlying steel and causing further damage. Overall, special steel performs exceptionally well in abrasive wear conditions. Its unique composition, heat treatment processes, and corrosion resistance properties make it an ideal material for applications where abrasion is a major concern. Whether in mining, manufacturing, or other industries where abrasive wear is prevalent, special steel can provide superior performance and extended lifespan, ensuring optimal efficiency and cost-effectiveness.
- Q: What are the different pharmaceutical grades of special steel?
- There are various pharmaceutical grades of special steel that are specifically designed and produced to meet the stringent requirements of the pharmaceutical industry. These grades are used in the manufacturing of equipment, instruments, and components that come into direct contact with pharmaceutical products. The different pharmaceutical grades of special steel include: 1. 316L Stainless Steel: This grade is widely used in pharmaceutical applications due to its excellent corrosion resistance and high purity. It is often referred to as surgical stainless steel and is suitable for parts that require frequent cleaning and sterilization. 2. 304 Stainless Steel: This grade is also commonly used in the pharmaceutical industry for its corrosion resistance and ease of fabrication. It is suitable for equipment and components that do not require as frequent cleaning or sterilization. 3. Duplex Stainless Steel: This grade offers a combination of high strength and corrosion resistance, making it suitable for applications where durability and reliability are key. It is often used in pharmaceutical processing equipment that handles aggressive chemicals or high-pressure environments. 4. Hastelloy: This is a nickel-based alloy that exhibits superior resistance to corrosion, heat, and chemicals. It is commonly used in pharmaceutical applications where extreme conditions are present, such as in reactors or vessels that handle highly corrosive substances. 5. Titanium: Although not technically steel, titanium is often considered a pharmaceutical-grade material due to its excellent biocompatibility and corrosion resistance. It is used in medical implants and devices, as well as in pharmaceutical equipment that comes into contact with sensitive drugs. These pharmaceutical grades of special steel are carefully selected based on their specific properties and suitability for pharmaceutical applications. They are manufactured and tested to ensure compliance with industry standards and regulations, such as Good Manufacturing Practices (GMP) and the United States Pharmacopeia (USP). Using the appropriate grade of steel in pharmaceutical manufacturing helps to ensure product safety, quality, and integrity.
- Q: How does special steel perform in case hardening applications?
- Special steel performs exceptionally well in case hardening applications. Case hardening is a heat treatment process used to increase the surface hardness of a material while maintaining a tough and ductile core. Special steel, also known as alloy steel, is specifically formulated to have enhanced properties such as high strength, toughness, and wear resistance. In case hardening applications, special steel is ideal due to its ability to form a hard outer layer while retaining its core properties. The process typically involves heating the steel to a specific temperature and then introducing a carbon-rich environment, such as through carburizing or carbonitriding. The carbon atoms diffuse into the steel's surface, creating a high-carbon layer, known as the case, which significantly increases hardness and wear resistance. Special steel's high carbon content allows for deeper and more uniform case hardening compared to other types of steel. This results in improved durability, reduced friction, and enhanced resistance to wear, abrasion, and impact. The tough core of special steel also ensures that the material remains resistant to cracking or fracturing under high stress or impact loads. Additionally, special steel offers excellent machinability, allowing for ease of processing during case hardening applications. This makes it a preferred choice for various industries, including automotive, aerospace, tooling, and manufacturing, where components require both high surface hardness and structural integrity. Overall, special steel is highly regarded for its exceptional performance in case hardening applications. Its combination of high strength, toughness, wear resistance, and machinability makes it an excellent choice for producing durable and reliable components that can withstand demanding operating conditions.
- Q: What are the different methods of improving the corrosion resistance of special steel?
- There are several methods available for improving the corrosion resistance of special steel. Some of the commonly used methods include: 1. Alloying: One of the most effective ways to enhance corrosion resistance is by alloying the steel with specific elements. For example, adding chromium to steel forms a protective chromium oxide layer on the surface, which acts as a barrier against corrosion. Other elements like molybdenum, nickel, and copper can also be added to improve corrosion resistance. 2. Surface treatments: Various surface treatments can be applied to the steel to enhance its corrosion resistance. For instance, galvanizing involves coating the steel with a layer of zinc, which protects it from corrosion. Electroplating is another method where a thin layer of a more corrosion-resistant metal, such as nickel or chromium, is deposited onto the steel surface. 3. Passivation: Passivation is a chemical process that removes free iron and other contaminants from the steel surface, creating a passive film that aids in corrosion resistance. This method is commonly used for stainless steel, where a thin layer of chromium oxide is formed by treating the steel with an oxidizing agent like nitric acid. 4. Protective coatings: Applying protective coatings on the steel surface can significantly improve its corrosion resistance. There are various types of coatings available, such as paints, epoxy coatings, and ceramic coatings. These coatings act as a barrier between the steel and the corrosive environment, preventing direct contact and corrosion. 5. Heat treatment: Heat treatment techniques like annealing, quenching, and tempering can modify the microstructure of the steel, enhancing its corrosion resistance. Heat treatment can improve the steel's mechanical properties, reduce residual stresses, and remove impurities, all of which contribute to better corrosion resistance. 6. Design considerations: Proper design and construction techniques can play a crucial role in improving the corrosion resistance of special steel. For example, eliminating sharp corners and crevices where corrosion can occur, using appropriate drainage systems, and ensuring proper ventilation can prevent the accumulation of moisture and corrosive agents. It is worth noting that the selection of the most suitable method depends on the specific application, environment, and desired level of corrosion resistance. A combination of these methods may also be employed to achieve optimal results.
- Q: What are the common challenges in welding special steel?
- When welding special steel, there are several challenges that differ from welding regular carbon steel. Some common challenges in welding special steel include the following: 1. High carbon content: Special steels often have a high carbon content, which can increase hardness and brittleness. Achieving a proper weld without cracks or defects can be more difficult. 2. High alloy content: Special steels often contain various alloying elements like chromium, nickel, or molybdenum, which can affect weldability. These elements can introduce complexities, such as increased susceptibility to heat-affected zone (HAZ) cracking or the formation of brittle phases. 3. Heat sensitivity: Special steels are often more sensitive to heat during welding. Excessive heat can cause grain growth, reduced mechanical properties, or distortion of the welded structure. Therefore, careful control of heat input and preheating techniques may be necessary. 4. Pre-weld and post-weld treatments: Specific pre-weld and post-weld treatments may be required for special steels to ensure proper weld quality and performance. These treatments can include preheating, stress relieving, or post-weld heat treatment. Failure to follow these procedures can result in residual stresses or reduced mechanical properties. 5. Joint design and fit-up: The design and fit-up of the weld joint can also present challenges. Special steels may require specific joint configurations, such as a double-V or double-U groove, to ensure adequate penetration and fusion. Additionally, tight tolerances may be necessary to maintain desired mechanical properties. 6. Welding process selection: The choice of welding process can greatly impact the success of welding special steel. TIG or laser welding may be more suitable for high-alloy steels, while MIG or submerged arc welding may be better for specific applications. Selecting the appropriate welding process is crucial for achieving a sound weld with desired properties. To overcome these challenges, it is essential to thoroughly understand the specific type of special steel being welded and follow proper welding procedures and techniques. This may involve conducting pre-weld qualification tests, using suitable welding consumables, and ensuring proper heat control throughout the welding process. Additionally, working with experienced welders and seeking guidance from experts in special steel welding can effectively overcome these challenges.
- Q: What are the properties of nitriding steel?
- Nitriding steel is a process in which the surface of the steel is hardened and enhanced by introducing nitrogen into its structure. The properties of nitriding steel include increased surface hardness, improved wear resistance, enhanced fatigue strength, and greater corrosion resistance. Additionally, nitriding steel exhibits a low coefficient of friction, excellent dimensional stability, and increased resistance to heat and oxidation.
- Q: What are the applications of corrosion-resistant steel?
- Corrosion-resistant steel, also known as stainless steel, has a wide range of applications due to its ability to resist rusting and corrosion. It is commonly used in industries such as construction, automotive, aerospace, and food processing. Corrosion-resistant steel is used to make structural components, pipelines, tanks, and equipment that are exposed to harsh environments or substances. It is also utilized in architectural elements, household appliances, and medical equipment where durability and hygiene are crucial.
- Q: What are the quality control measures for special steel?
- The quality control measures for special steel typically include thorough inspection and testing of raw materials, monitoring and controlling the manufacturing process, conducting various mechanical and chemical tests, ensuring dimensional accuracy and surface finish, and conducting final inspection and certification to meet specific industry standards. These measures are essential to ensure the desired properties and performance of special steel, as well as to meet customer requirements and ensure product reliability and safety.
- Q: How is special steel used in the aerospace sector?
- Special steel is extensively used in the aerospace sector due to its unique properties that make it suitable for various applications. One of the primary uses of special steel in the aerospace industry is for manufacturing aircraft engine components. These components, such as turbine blades, shafts, and casings, are subjected to extremely high temperatures, pressures, and stresses. Special steel, with its excellent heat resistance, high strength, and superior mechanical properties, enables these engine parts to withstand such harsh conditions, ensuring optimal performance and safety. Moreover, special steel is also utilized in the construction of aircraft structures, including wings, fuselage, landing gears, and other critical components. These structures need to be lightweight, yet strong enough to withstand the forces experienced during flight. Special steel alloys, such as stainless steel, are used to achieve this balance by providing excellent strength-to-weight ratios and corrosion resistance. Additionally, special steel finds application in aerospace fasteners, such as bolts, nuts, and screws. These fasteners must have exceptional strength and durability to ensure the structural integrity of the aircraft. Special steel alloys, like titanium alloys, are commonly used in this regard due to their lightweight nature, high strength, and resistance to corrosion. Furthermore, special steel is utilized in the production of aerospace tooling and equipment. These tools, such as molds, dies, jigs, and fixtures, need to be robust, wear-resistant, and capable of withstanding high temperatures and pressures during manufacturing processes. Special steel, with its excellent hardness, toughness, and heat resistance, makes it ideal for such applications. In summary, special steel plays a critical role in the aerospace sector by providing the necessary properties required for aircraft engine components, structures, fasteners, and tooling. Its unique characteristics of high strength, heat resistance, lightweight, and corrosion resistance make it an indispensable material in the production of reliable and high-performance aerospace systems.
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Steel Rebar Size for Construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 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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