Gr40 Ribbed High Quality Steel Rebar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 170 m.t.
- Supply Capability:
- 500000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Item specifice
Type:
Carbon Steel
Shape:
Steel Round Bar
Gr40 Ribbed High Quality Steel Rebar
Description of Gr40 Ribbed High Quality Steel Rebar
1, Diameter: 5.5mm-10mm Gr40 Ribbed High Quality Steel Rebar
10m- 40mm Gr40 Ribbed High Quality Steel Rebar
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 Gr40 Ribbed High Quality Steel Rebar
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 | ||||
Products Show of Gr40 Ribbed High Quality Steel Rebar
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.
F A Q
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.
- Q:What are the main factors affecting the wear resistance of special steel?
- The main factors affecting the wear resistance of special steel include the composition of the steel, the hardness and microstructure of the steel, the presence of carbides or other hardening elements, the surface finish and treatment of the steel, and the operating conditions in which the steel is used.
- Q:Can special steel be used in the semiconductor industry?
- Yes, special steel can be used in the semiconductor industry. Special steel, such as stainless steel, is often used in the semiconductor industry due to its excellent corrosion resistance, high temperature resistance, and low contamination properties. It is commonly used in various components and equipment used for semiconductor fabrication and processing.
- Q:What are the different methods for shot peening special steel?
- There are several methods for shot peening special steel, including air blast peening, wheel blast peening, and centrifugal peening. Air blast peening involves directing a stream of shot particles onto the surface using compressed air, while wheel blast peening uses a rotating wheel to propel the shot particles. Centrifugal peening utilizes a spinning wheel to throw the shot particles onto the steel surface. Each method has its own advantages and is used based on the specific requirements of the steel and the desired outcome of the shot peening process.
- Q:What are the requirements for special steel used in military applications?
- Special steel used in military applications must meet certain requirements to ensure optimal performance and durability in the field. These requirements include: 1. High strength: Military applications often involve extreme conditions, such as heavy loads, impacts, and shocks. Special steel used in these applications must have high strength to withstand these forces without deformation or failure. 2. Toughness: The steel should have excellent toughness to resist cracking or fracturing under high-stress situations. This is crucial for ensuring the safety of military personnel and equipment. 3. Corrosion resistance: Military operations can take place in various environments, including marine or coastal areas where exposure to moisture, saltwater, and other corrosive elements is common. Special steel used in military applications should have good corrosion resistance to maintain its structural integrity over time. 4. Heat resistance: Military equipment often encounters high temperatures due to friction, combustion, or exposure to explosives. The steel used must have good heat resistance to prevent deformation or loss of strength under these conditions. 5. Wear resistance: Military equipment is subject to frequent use, abrasive contact, and potential impact with foreign objects. Special steel used in these applications should have excellent wear resistance to minimize damage and prolong the lifespan of the equipment. 6. Machinability: Special steel used in military applications should be easy to machine and process into various shapes and sizes. This ensures that it can be tailored to specific requirements and easily integrated into different military systems. 7. Cost-effectiveness: While meeting all the above requirements, special steel used in military applications should also be cost-effective. The steel must offer a good balance between performance and cost to ensure efficient use of resources. By meeting these requirements, special steel used in military applications can provide the necessary strength, durability, and reliability needed for military operations, ensuring the safety and effectiveness of military personnel and equipment.
- Q:How does special steel resist fatigue?
- Special steel is designed to resist fatigue by incorporating specific properties that enhance its durability and strength. One of the primary factors that allows special steel to resist fatigue is its high tensile strength. This means that the steel can withstand large amounts of stress and load without deforming or breaking, which is crucial in preventing the initiation and propagation of fatigue cracks. Additionally, special steel often undergoes specific heat treatment processes, such as quenching and tempering, to further enhance its resistance to fatigue. This heat treatment modifies the microstructure of the steel, creating a fine and uniform grain structure that improves its mechanical properties. It increases the steel's hardness and toughness, making it less susceptible to fatigue failure. Furthermore, special steel can also contain alloying elements such as chromium, molybdenum, and vanadium, which contribute to its fatigue resistance. These alloying elements form carbides and other strengthening phases within the steel, resulting in improved hardness, strength, and resistance to fatigue crack propagation. Moreover, special steel can undergo specialized surface treatments, such as shot peening or nitriding. Shot peening bombards the steel surface with small metal particles, inducing compressive residual stresses. These compressive stresses counteract the tensile stresses that cause fatigue cracks, thus enhancing fatigue resistance. Nitriding involves diffusing nitrogen into the steel surface, creating a hardened layer that improves wear resistance and, consequently, fatigue resistance. In summary, special steel resists fatigue through a combination of factors, including high tensile strength, specific heat treatment processes, alloying elements, and specialized surface treatments. These properties work together to enhance the steel's durability, strength, and resistance to fatigue crack initiation and propagation, making it a reliable and long-lasting material in various applications.
- Q:How does special steel contribute to the manufacturing of medical implants?
- Special steel plays a crucial role in the manufacturing of medical implants due to its unique properties and characteristics. Medical implants require materials that are biocompatible, corrosion-resistant, and durable. Special steels, such as stainless steel, titanium alloys, and cobalt-chromium alloys, possess these desired qualities, making them ideal for medical implant production. Firstly, stainless steel is widely used in the manufacturing of medical implants due to its excellent corrosion resistance and high strength. It is often employed in applications like surgical instruments, orthopedic implants, and dental devices. Stainless steel implants can withstand the harsh physiological environment within the body, ensuring long-term performance and reducing the risk of complications. Titanium alloys are another type of special steel extensively used in medical implant manufacturing. These alloys offer high strength-to-weight ratio, exceptional biocompatibility, and resistance to corrosion. Titanium implants are commonly used in orthopedic surgeries, such as joint replacements, as well as dental implants. The biocompatible nature of titanium allows for better integration with the surrounding bone, promoting faster healing and reducing the risk of rejection. Cobalt-chromium alloys are yet another type of special steel utilized in the production of medical implants. These alloys possess excellent mechanical strength, wear resistance, and biocompatibility. Cobalt-chromium implants are frequently employed in orthopedic surgeries and cardiovascular interventions, such as stents. Their high strength ensures stability and longevity, while their biocompatibility minimizes adverse reactions and promotes patient recovery. Overall, special steel provides the necessary qualities required for manufacturing medical implants. Whether it is stainless steel, titanium alloys, or cobalt-chromium alloys, these materials contribute to the development of biocompatible, corrosion-resistant, and durable implants that improve patients' quality of life and ensure successful medical procedures.
- Q:What is the role of chromium in special steel?
- The role of chromium in special steel is to provide enhanced corrosion resistance, increased hardness, and improved strength. It forms a protective layer on the surface of the steel, known as chromium oxide, which prevents the steel from rusting or corroding. Chromium also helps in improving the steel's ability to withstand high temperatures and maintain its structural integrity.
- Q:How does special steel contribute to reducing product rejection rates in quality control?
- Special steel can contribute to reducing product rejection rates in quality control by providing enhanced material properties such as increased strength, hardness, and corrosion resistance. These improved properties make special steel suitable for manufacturing critical components, ensuring that they meet the required specifications and quality standards. By using special steel, manufacturers can produce products that are less prone to defects, leading to lower rejection rates during quality control inspections.
- Q:How does special steel perform in marine applications?
- Special steel, also known as marine grade steel, performs exceptionally well in marine applications. This type of steel is specifically designed and manufactured to withstand the harsh and corrosive environments that are common in marine settings. One of the key advantages of special steel in marine applications is its high resistance to corrosion. Marine environments naturally contain high levels of saltwater, which can be highly corrosive to traditional steel. However, special steel is made with additional alloying elements, such as chromium and nickel, which provide excellent resistance to corrosion. This ensures that the steel remains structurally sound and maintains its strength and integrity over time. Furthermore, special steel also possesses superior strength and toughness characteristics, making it highly suitable for marine applications. It can withstand extreme temperatures, heavy loads, and impacts, making it ideal for use in shipbuilding, offshore structures, and other marine equipment. It is also highly resistant to fatigue, which is crucial for structures that are constantly exposed to dynamic loads and vibrations in marine environments. Additionally, special steel is known for its excellent weldability and machinability, allowing for easy fabrication and installation in marine applications. This steel can be easily formed into different shapes and sizes, providing flexibility in design and construction. Overall, special steel is highly reliable and durable in marine applications due to its exceptional corrosion resistance, strength, toughness, and weldability. It ensures the longevity and safety of marine structures and equipment, making it the preferred choice for various marine industries.
- Q:Can special steel be used for food processing equipment?
- Yes, special steel can be used for food processing equipment. Special steel, often referred to as stainless steel, is commonly used in the food industry due to its corrosion resistance, durability, and hygienic properties. It is non-reactive and does not leach any harmful substances into the food, making it a safe and reliable choice for various food processing applications.
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Gr40 Ribbed High Quality Steel Rebar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 170 m.t.
- Supply Capability:
- 500000 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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