Special Steel Reinforcing Steel Bars HRB400 Rebars
- 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
Product Information
1.Specification
Diameter(mm) | Φ6 ,Φ8,Φ10,Φ12,Φ13,Φ14,Φ16,Φ18,Φ20,Φ22,Φ25,Φ28,Φ32,Φ36,Φ40,Φ50 |
Length(m) | Unfolded / Straight Bundles weighing upto 2 Metric Tons and lengths is 6 Meters up to 15 Meters or according customers require |
U Shaped folded Bundles weighing up to 2 Metric Tons and lengths is 12 Meters | |
Rounded Coils ~ up to 2 Metric Ton Coils for Bending / Cutting Machine use. | |
Standard | GB(HRB335/HRB400/HRB500); |
BS4449 -1997 GRADE 250B, 460B; BS4449-2005 GRADE 500B; | |
ASTM A615 GRADE 40,GRADE60,GRADE75; ASTM A706; | |
DIN488-1 420S/500S, BST500S | |
JIS G3112 SD35, SD40, SD50,SD390 | |
NFA 35016 FE E 400, FE E 500 | |
CA 50/60 | |
GOST A3 R A500C | |
Surface finished | Screw-thread |
Epoxy coating | |
Galvanized coating | |
Production facility | Imports of production equipment from Italy |
Production capacity | 50,000 MT/month |
Payment term | T/T or 100% L/C at sight |
Package | In bundles. One bundles about 2-3tons |
2.Chemical composition
Grade | Technical data of the original chemical composition (%) | |||||
C | Mn | Si | S | P | V | |
HRB400 | ≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | 0.04-0.12 |
Physics capability | ||||||
Yield Strength (N/cm2) | Tensile Strength (N/cm2) | Elongation (%)
| ||||
≥400 | ≥570 | ≥14 |
3.Theorectical weight
Diameter (MM) | Cross Sectional Area (MM2) | Theorectical Weight (KG/M) | Weight of 12M Bar (KG) | A Ton Contains 12M Bars (PCS) |
6 | 28.27 | 0.222 | 2.664 | 375.38 |
8 | 50.27 | 0.395 | 4.74 | 210.97 |
10 | 78.54 | 0.617 | 7.404 | 135.06 |
12 | 113.1 | 0.888 | 10.656 | 93.84 |
14 | 153.9 | 1.21 | 14.52 | 68.87 |
16 | 201.1 | 1.58 | 18.96 | 52.74 |
18 | 254.5 | 2 | 24 | 41.67 |
20 | 314.2 | 2.47 | 29.64 | 33.74 |
22 | 380.1 | 2.98 | 35.76 | 27.96 |
25 | 490.9 | 3.85 | 46.2 | 21.65 |
28 | 615.8 | 4.83 | 57.96 | 17.25 |
32 | 804.2 | 6.31 | 75.72 | 13.21 |
36 | 1018 | 7.99 | 98.88 | 10.43 |
40 | 1257 | 9.87 | 118.44 | 8.44 |
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Shipping
1. FedEx/DHL/UPS/TNT for samples, Door-to-Door;
2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;
3. Customers specifying freight forwarders or negotiable shipping methods!
Delivery Time: 3-7 days for samples; 5-25 days for batch goods.
Payment Terms
1.Payment: T/T, L/C, Western Union, MoneyGram,PayPal; 30% deposits; 70% balance before delivery.
2.MOQ: 1pcs
3.Warranty : 3 years
4.Package Informations: 1) EXPORT, In 20 feet (GW 25 ton) or 40 feet Container (GW 25 ton)
2)as customer's requirement
Why choose us?
(1) The leading exporter in China special steel industry.
(2) Large stocks for various sizes, fast delivery date.
(3) Good business relationship with China famous factories.
(4) More than 7 years steel exporting experience.
(5) Good after-sales service guarantee.
- Q: What are the different methods for improving the creep resistance of special steel?
- Several methods exist to enhance the creep resistance of special steel. One commonly employed technique involves alloying. By incorporating specific alloying elements like chromium, molybdenum, and vanadium, the steel's creep resistance can be significantly improved. These alloying elements create stable carbides or nitrides that serve as obstacles to dislocation movement, thereby reducing the rate of creep deformation. Heat treatment represents another effective approach. By subjecting the steel to carefully controlled heating and cooling processes, the microstructure can be refined to enhance its creep resistance. Techniques such as quenching and tempering aid in the formation of a fine-grained structure, which in turn increases the steel's strength and resistance to creep. Surface modification offers an alternative means of improving creep resistance. Nitriding and carburizing techniques can be utilized to introduce nitrogen or carbon into the steel's surface layer, creating a hardened layer that enhances creep resistance. Moreover, grain size control can be achieved through methods like grain boundary engineering or severe plastic deformation. By refining the grain structure, the movement of dislocations within the material is impeded, resulting in improved creep resistance. Lastly, the application of coatings can also bolster the creep resistance of special steel. Coatings such as ceramic or metallic coatings provide a protective layer that hampers the diffusion of impurities and slows down the creep rate. To summarize, the improvement of creep resistance in special steel can be accomplished through various techniques, including alloying, heat treatment, surface modification, grain size control, and the use of coatings. These methods aim to fortify the steel's microstructure, hinder dislocation movement, and establish protective barriers against creep deformation.
- Q: How does the composition of special steel affect its mechanical properties?
- The composition of special steel significantly affects its mechanical properties. Various alloying elements such as carbon, manganese, chromium, nickel, and others are added in specific quantities to enhance the steel's strength, hardness, toughness, and corrosion resistance. The presence and ratio of these elements determine the steel's microstructure, which in turn determines its mechanical properties. For example, higher carbon content increases hardness and strength, while manganese improves toughness. Similarly, chromium and nickel increase corrosion resistance and provide better heat resistance. Therefore, the composition of special steel plays a crucial role in defining its mechanical properties.
- Q: How does special steel contribute to the aerospace landing gear industry?
- Special steel plays a vital role in the aerospace landing gear industry by providing the necessary strength, durability, and resistance to extreme conditions. It enables the landing gear to withstand heavy loads, high temperatures, and corrosive environments, ensuring the safe landing and takeoff of aircraft. Additionally, special steel's lightweight properties help reduce the overall weight of the landing gear, resulting in improved fuel efficiency and increased payload capacity.
- Q: What are the different certifications available for special steel?
- There are several certifications available for special steel, including ISO 9001, ISO 14001, ISO/TS 16949, and AS9100. These certifications ensure that the steel meets specific quality standards, environmental management practices, automotive industry requirements, and aerospace industry standards, respectively.
- Q: How does special steel contribute to the aerospace material cost reduction?
- Special steel contributes to the aerospace material cost reduction by offering superior strength, durability, and corrosion resistance properties. This allows for the design and manufacture of lighter and more fuel-efficient aircraft components. Additionally, special steel's high performance characteristics enable longer service life, reducing maintenance and replacement costs over time.
- Q: What are the main characteristics of structural steel?
- The main characteristics of structural steel include high strength, durability, versatility, and cost-effectiveness. It has a high strength-to-weight ratio, allowing for the construction of large and complex structures with minimal material usage. It is also resistant to corrosion and can withstand extreme weather conditions, making it suitable for both indoor and outdoor applications. Additionally, structural steel is highly versatile, as it can be easily fabricated, modified, and reused. Its cost-effectiveness is another key characteristic, as it offers long-term value due to its low maintenance requirements and ability to withstand heavy loads.
- Q: What are the requirements for special steel used in agricultural machinery?
- Different components or parts in agricultural machinery have varying requirements for special steel. However, there are common requirements that generally apply to most agricultural machinery. 1. To withstand harsh conditions including heavy loads, friction, and exposure to elements, special steel used in agricultural machinery must have high strength and durability. 2. Special steel should possess good corrosion resistance properties to prevent rusting and degradation over time, as agricultural machinery is often exposed to moisture, chemicals, and other corrosive substances. 3. To ensure prolonged service life and reduce maintenance costs, special steel should have excellent wear resistance, as components like blades, gears, and bearings undergo repetitive and abrasive actions. 4. Special steel should exhibit high toughness to absorb sudden impacts, shock loads, and vibrations without fracture or fatigue failure, as agricultural machinery encounters these forces during operation. 5. Special steel should have good machinability, including properties like good formability, weldability, and ease of heat treatment, to enable efficient and accurate machining processes during manufacturing. 6. While meeting the above requirements, special steel used in agricultural machinery should also be cost-effective, striking a balance between performance and cost without compromising quality and performance. In conclusion, the selection of special steel for agricultural machinery should consider specific application requirements such as load capacity, environmental conditions, and expected service life. Meeting these requirements ensures efficient and reliable operation with minimal downtime.
- Q: Can special steel be used in the automotive racing industry?
- Yes, special steel can be used in the automotive racing industry. Special steel alloys, such as high-strength or lightweight steels, can offer enhanced performance and durability, making them suitable for various racing applications. These steels can be used in the construction of engine components, chassis, suspension systems, and other critical parts, helping to improve speed, handling, and overall performance on the racetrack.
- Q: How does special steel contribute to the elasticity of products?
- The elasticity of products is improved by special steel, which has a distinct composition and manufacturing process. Elasticity refers to a material's capacity to revert to its initial shape or size after being stretched or deformed. Special steel enhances product elasticity in multiple ways. Firstly, special steel is commonly alloyed with elements like nickel, chromium, or vanadium, which enhance its mechanical properties. These alloying elements alter the steel's crystal structure, resulting in a material with higher yield strength and tensile strength. This increased strength enables the steel to endure higher levels of stress and deformation without permanent damage or failure. Furthermore, the manufacturing process of special steel involves precise control over its microstructure. Techniques such as heat treatment and cold working optimize the steel's grain size and distribution. This controlled microstructure improves the material's elasticity by facilitating uniform deformation. When a product made from special steel faces external forces or stress, its microstructure allows for the redistribution of these forces, minimizing localized deformation and maximizing overall elasticity. Moreover, special steel often contains a high carbon content, which contributes to its elasticity. The carbon atoms in the steel form strong chemical bonds with the iron atoms, resulting in a material with increased hardness and resistance to deformation. This enhanced resistance to deformation enables the steel to exhibit greater elasticity when subjected to external forces. In conclusion, special steel's unique composition, precise manufacturing processes, and specific alloying elements all contribute to its ability to enhance product elasticity. By incorporating special steel in the design and construction of various products, manufacturers can ensure that these products can withstand deformation and return to their original shape, thus increasing their durability and longevity.
- Q: What is the purpose of cold drawing in special steel production?
- Cold drawing is utilized in special steel production with the aim of enhancing the mechanical properties and dimensional accuracy of the steel. This technique involves pulling the steel through a die at room temperature, which leads to a reduction in the cross-sectional area and an increase in the length of the steel. By undergoing this process, the microstructure of the steel is refined, resulting in improved strength, hardness, and toughness. Furthermore, cold drawing has the ability to improve the surface finish and straightness of the steel, ensuring precise dimensions and making it suitable for a wide range of applications that require high-quality steel. In summary, cold drawing plays a vital role in improving the performance and quality of special steel, making it more dependable and efficient in various industrial sectors.
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Special Steel Reinforcing Steel Bars HRB400 Rebars
- 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
OKorder Financial Service
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