SD390 Steel Rebar with JIS Standard
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 160 m.t.
- Supply Capability:
- 500000 m.t./month
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Specification
SD390 Steel Rebar with JIS Standard
Description of SD390 Steel Rebar with JIS Standard
1, Diameter: 5.5mm-10mm SD390 Steel Rebar with JIS Standard
10m- 40mm SD390 Steel Rebar with JIS Standard
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 SD390 Steel Rebar with JIS Standard
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 SD390 Steel Rebar with JIS Standard
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 is the impact of grain size on the mechanical properties of special steel?
- The impact of grain size on the mechanical properties of special steel is significant. Grain size refers to the size and distribution of individual crystals within the steel structure. It is determined by factors such as the cooling rate during solidification and subsequent heat treatments. In general, a smaller grain size in special steel leads to improved mechanical properties. This is because smaller grains offer a greater number of grain boundaries, which act as barriers to dislocation movement and improve the strength of the steel. Smaller grains also provide a more uniform microstructure, enhancing the overall toughness and resistance to fracture. Additionally, a smaller grain size promotes higher hardness and increased wear resistance in special steel. This is due to the increased number of grain boundaries that hinder the movement of dislocations, preventing plastic deformation and leading to higher hardness values. On the other hand, larger grain sizes can negatively impact the mechanical properties of special steel. Larger grains have fewer grain boundaries, allowing dislocations to move more freely. This results in reduced strength, toughness, and hardness of the steel. Furthermore, larger grains can also lead to anisotropic behavior, where the mechanical properties differ in different crystallographic directions, making the steel more susceptible to failure under certain loading conditions. Therefore, controlling and optimizing the grain size in special steel is crucial to achieve desired mechanical properties. This can be achieved through precise heat treatments, such as annealing or quenching, which control the cooling rate and subsequent recrystallization processes. By controlling the grain size, special steel can be tailored to meet specific application requirements, ensuring optimal mechanical performance and reliability.
- Q: How is special steel used in the production of precision tools?
- Special steel is used in the production of precision tools due to its unique properties such as high strength, durability, and resistance to corrosion. This steel is carefully engineered and manufactured to meet specific requirements, enabling the production of precise and reliable tools. The use of special steel in precision tool manufacturing ensures that these tools can withstand heavy usage, maintain their sharpness, and provide accurate results, making them crucial for various industries such as automotive, aerospace, and engineering.
- Q: How does special steel contribute to the defense equipment industry?
- The defense equipment industry heavily relies on special steel, which offers superior strength, durability, and performance characteristics essential for manufacturing high-quality military equipment. This type of steel is specifically engineered to meet the demanding requirements of defense applications, ensuring the safety and effectiveness of military personnel and operations. A significant contribution of special steel to the defense equipment industry lies in its ability to withstand extreme conditions and environments. Military equipment often operates in harsh conditions, including extreme temperatures, high pressures, corrosive environments, and impact forces. Special steel is designed to maintain its structural integrity and performance under these challenging conditions, providing a reliable and long-lasting solution for defense equipment. Furthermore, special steel possesses exceptional strength and toughness, making it optimal for producing armored vehicles, tanks, and military aircraft. It provides a high level of protection against ballistic threats and can endure projectile impacts and explosions. The utilization of special steel in defense equipment guarantees the safety of military personnel and enhances their survivability in combat situations. Additionally, special steel is indispensable for the production of cutting-edge weaponry and munitions. It is employed in the manufacturing of firearms, missiles, and artillery systems due to its excellent mechanical properties and ability to withstand high pressures. Special steel also enables precision engineering, ensuring the accuracy and reliability of military firearms and projectiles. Moreover, special steel contributes to the defense equipment industry by supporting technological advancements. As technology continues to evolve, the defense sector requires materials that can meet the demands of modern warfare. Special steel can be tailored and optimized to meet specific performance requirements, allowing for the development of advanced defense systems such as stealth technology, electronic warfare, and precision-guided munitions. In conclusion, special steel plays a crucial role in the defense equipment industry by providing the necessary strength, durability, and performance characteristics required for military applications. It guarantees the safety and effectiveness of defense personnel and equipment, withstands extreme conditions, facilitates the production of advanced weaponry, and supports technological advancements in the defense sector.
- Q: What are the properties of shock-resistant steel?
- Shock-resistant steel, also known as impact-resistant steel, possesses several properties that make it highly resistant to shock or impact. Firstly, it exhibits a high level of toughness, meaning it can absorb a significant amount of energy without fracturing or breaking. This toughness is often achieved through the use of alloying elements, such as manganese, nickel, or chromium, which enhance the steel's ability to absorb and distribute the energy of an impact. Additionally, shock-resistant steel has a high tensile strength, allowing it to resist deformation under high-stress conditions. This property enables the steel to maintain its structural integrity and prevent permanent damage when subjected to sudden or intense impacts. Furthermore, shock-resistant steel often displays excellent ductility, enabling it to undergo plastic deformation without fracturing. This ductility allows the steel to absorb and dissipate energy, ensuring that it remains intact even in high-impact scenarios. Overall, the properties of shock-resistant steel make it a reliable and durable material for applications requiring resistance to sudden impacts, such as construction equipment, armored vehicles, and machinery components.
- Q: Can special steel be used in the automotive industry?
- Yes, special steel is commonly used in the automotive industry for various applications such as engine components, chassis parts, and suspension systems. Its high strength, durability, and resistance to corrosion make it ideal for improving safety, performance, and overall quality of automobiles.
- Q: Can special steel be used for precision instruments?
- Yes, special steel can be used for precision instruments. Special steels, such as high-speed steel or tool steel, possess excellent properties like high hardness, wear resistance, and dimensional stability. These qualities make them suitable for manufacturing precision instruments that require accuracy and durability, such as surgical tools, measuring equipment, or watch components.
- Q: How does special steel contribute to reducing greenhouse gas emissions?
- Special steel contributes to reducing greenhouse gas emissions in several ways. Firstly, it is used in the production of energy-efficient vehicles, such as electric cars, which have lower emissions compared to conventional vehicles. Additionally, special steel is employed in the construction of wind turbines, which generate clean and renewable energy, reducing the reliance on fossil fuels. Furthermore, special steel is utilized in the manufacturing of energy-efficient appliances and buildings, which consume less energy and subsequently emit fewer greenhouse gases. Overall, the use of special steel in various sectors promotes sustainable practices and helps mitigate the impact of greenhouse gas emissions on the environment.
- Q: What are the advantages of using special steel in the marine sector?
- Special steel has several advantages when used in the marine sector. Firstly, special steel is highly resistant to corrosion, which is crucial in a marine environment where constant exposure to saltwater can cause regular steel to rust and deteriorate. This corrosion resistance extends the lifespan of structures and components, reducing maintenance costs and increasing safety. Secondly, special steel offers excellent strength and toughness, making it suitable for the demanding conditions of the marine sector. It can withstand high stress, impact, and vibration, ensuring the integrity of the structures even in rough seas or extreme weather conditions. Moreover, special steel can be fabricated into various shapes and sizes, allowing for customization and optimization of marine components. This versatility enables the production of lightweight yet robust structures, improving fuel efficiency, and reducing the overall weight of the vessel. Additionally, special steel can withstand low temperatures, making it suitable for marine applications in colder climates or polar regions. It retains its mechanical properties even in sub-zero temperatures, ensuring the safety and reliability of marine operations. In summary, the advantages of using special steel in the marine sector include corrosion resistance, high strength and toughness, versatility in fabrication, and low-temperature resistance. These qualities enhance the durability, safety, and efficiency of marine structures and components.
- Q: What are the different forms of special steel?
- There are several different forms of special steel, including stainless steel, tool steel, high-speed steel, and alloy steel.
- Q: How does nitriding steel improve hardness and wear resistance?
- Nitriding steel improves hardness and wear resistance by introducing nitrogen into the surface of the material. This process forms nitrides, which are hard compounds that increase the surface hardness of the steel. Additionally, the nitrides create a protective layer that enhances the material's resistance to wear, erosion, and corrosion.
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SD390 Steel Rebar with JIS Standard
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 160 m.t.
- Supply Capability:
- 500000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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