Steel Rebar Hs Code Import Duty and Taxes

Steel Rebar Hs Code Import Duty and Taxes System 1

Steel Rebar Hs Code Import Duty and Taxes System 2

Steel Rebar Hs Code Import Duty and Taxes System 3

Steel Rebar Hs Code Import Duty and Taxes System 4

Steel Rebar Hs Code Import Duty and Taxes

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 50000 m.t./month

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Steel Rebar Hs Code Import Duty and Taxes

Description of Steel Rebar HS Code:

1, Diameter: 5.5mm-10mm rounds reinforcing steel bar

10m- 40 rods reinforcing Steel Rebar HS Code

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 HS Code:

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 HS Code:

Workshop

Verified Suppliers Bs4449 Deformed Steel Bar Manufacturer

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.

Verified Suppliers Bs4449 Deformed Steel Bar Manufacturer

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:

Verified Suppliers Bs4449 Deformed Steel Bar Manufacturer

Q:How does quenching and tempering affect the hardness of special steel?: Special steel can have its hardness and mechanical properties improved through the use of heat treatment processes known as quenching and tempering. During quenching, the steel undergoes rapid cooling from a high temperature to either room temperature or below. This is typically achieved by immersing the steel in a quenching medium like oil or water. The quick cooling results in the formation of a martensitic structure, which is characterized by high hardness and brittleness. Quenching significantly enhances the hardness of the steel. However, the brittleness of the martensitic structure limits its usability in many applications. To address this issue, the steel then undergoes tempering. Tempering entails reheating the quenched steel to a temperature below the lower critical temperature, usually ranging from 200 to 600 degrees Celsius. The steel is held at this temperature for a specific period of time. This process facilitates the transformation of the brittle martensite into a more ductile structure known as tempered martensite. Tempering reduces the hardness of the steel but imparts improved toughness and ductility. The actual hardness achieved after tempering depends on the tempering temperature and time. Higher temperatures and longer times result in a greater reduction in hardness. By carefully adjusting the tempering parameters, a balance between hardness and toughness suitable for the intended application can be achieved. To summarize, quenching and tempering have a significant impact on the hardness of special steel. Quenching increases hardness by creating a martensitic structure, while tempering reduces hardness but enhances toughness and ductility. The specific hardness achieved through these processes can be controlled by adjusting the quenching and tempering parameters to meet the desired mechanical properties for the specific application.

Q:How is alloy steel used in the manufacturing of gears and shafts?: Alloy steel is commonly used in the manufacturing of gears and shafts due to its superior strength, durability, and resistance to wear and tear. Its unique properties make it ideal for withstanding high torque and heavy loads, ensuring smooth and efficient operation of gears and shafts in various industrial applications.

Q:How does special steel contribute to the manufacturing of cutting tools?: Special steel is a key component in the manufacturing of cutting tools due to its exceptional properties such as high hardness, toughness, and wear resistance. These characteristics enable cutting tools to withstand the rigors of various cutting operations, ensuring longer tool life and improved cutting performance. Furthermore, special steel can be customized to meet specific requirements, making it an ideal choice for manufacturing cutting tools that are used in a wide range of industries, including automotive, aerospace, and manufacturing.

Q:How does special steel contribute to the mining industry?: Special steel contributes to the mining industry by providing essential materials for equipment and infrastructure. Its high strength, durability, and resistance to corrosion make it suitable for mining tools, machinery, and structures, ensuring safe and efficient operations in harsh mining environments. Additionally, special steel alloys can be tailored to specific mining processes, such as underground drilling or ore extraction, enhancing performance, and increasing productivity in the industry.

Q:What are the different processes involved in making special steel?: The different processes involved in making special steel include melting the raw materials in a furnace, refining the molten steel to remove impurities, adding alloying elements to achieve desired properties, casting or forming the steel into desired shapes, heat treating to enhance its strength and hardness, and finally finishing processes like machining or polishing to achieve the desired surface finish.

Q:Does special steel require special machining techniques?: Yes, special steel does require special machining techniques. Special steel, also known as tool steel or high-performance steel, has unique properties such as high hardness, wear resistance, and toughness. These properties make it more challenging to machine compared to regular or mild steel. Special machining techniques such as high-speed machining, cutting tool selection, and cooling methods are often required to achieve precise and efficient machining results with special steel.

Q:What industries commonly use special steel?: Special steel, known as alloy steel as well, finds extensive use in diverse industries owing to its exceptional properties and performance characteristics. Several industries frequently employ special steel, including: 1. Automotive Industry: Special steel is extensively utilized in manufacturing automobile components such as crankshafts, camshafts, gears, and axles. Its exceptional strength, durability, and excellent heat resistance make it suitable for enduring the demanding conditions of the automotive sector. 2. Aerospace Industry: The aerospace industry relies on special steel to manufacture critical components like turbine blades, landing gear, and structural parts. Its ability to withstand high temperatures and maintain structural integrity under extreme conditions is vital for aerospace applications. 3. Oil and Gas Industry: In the oil and gas sector, special steel is crucial for applications like drill bits, valves, pipelines, and offshore platform components. Its corrosion resistance, high strength, and ability to withstand extreme temperatures and pressures make it suitable for these challenging environments. 4. Construction Industry: Special steel serves the construction industry in fabricating structural components, reinforcement bars, and high-rise building frameworks. Its high tensile strength, toughness, and resistance to wear and tear ensure the safety and stability of the structures. 5. Tool and Die Industry: The tool and die sector widely employs special steel in manufacturing cutting tools, molds, dies, and various machine components. Its capability to retain sharpness, resist deformation, and withstand high pressures and temperatures make it indispensable for these applications. 6. Energy Industry: Power generation plants, including nuclear, thermal, and renewable energy facilities, extensively utilize special steel. It is employed in manufacturing turbines, boilers, heat exchangers, and other critical components, thanks to its high temperature and corrosion resistance properties. 7. Medical Industry: In the medical field, special steel plays a crucial role, particularly in surgical instruments and implants. Its biocompatibility, strength, and corrosion resistance make it suitable for applications like joint replacements, dental instruments, and surgical cutting tools. 8. Manufacturing Industry: Various manufacturing processes like machining, forging, and casting widely rely on special steel. It is employed in the production of machine tools, industrial equipment, and heavy machinery components due to its high strength, toughness, and versatility. These examples represent just a fraction of the industries that commonly employ special steel. Its unique properties make it an indispensable material for a wide range of applications where strength, durability, heat resistance, and corrosion resistance are critical factors.

Q:What are the main factors affecting the hardness of special steel?: The main factors affecting the hardness of special steel include the composition of the steel, the heat treatment process, the grain size of the steel, and the presence of impurities or inclusions.

Q:What are the different powder coating techniques used for special steel?: Some of the different powder coating techniques used for special steel include electrostatic spray deposition, fluidized bed coating, and flame spray coating.

Q:Can special steel be used for making power generation equipment?: Indeed, power generation equipment can be constructed using special steel. Specifically engineered to possess enhanced characteristics like high strength, resistance to corrosion, heat, and wear, special steels are well-suited for use in arduous situations such as power generation equipment that often operates under conditions of elevated temperatures and pressures. Power generation equipment, including turbines, boilers, and generators, necessitates materials capable of enduring harsh operational circumstances and delivering dependable performance over an extended duration. Special steel grades, such as stainless steels, nickel-based alloys, and heat-resistant steels, are commonly employed in the construction of power plants and power generation equipment. Stainless steels are frequently utilized in power generation due to their exceptional resistance to corrosion, which is vital for equipment exposed to significant moisture or hostile environments. Nickel-based alloys are renowned for their outstanding strength at high temperatures, making them well-suited for components subjected to extreme heat, such as turbine blades or exhaust systems. On the contrary, heat-resistant steels are specifically designed to retain their mechanical properties at elevated temperatures, rendering them suitable for applications like boilers and heat exchangers. In conclusion, special steel possesses a variety of desirable properties that render it highly suitable for the production of power generation equipment. Its strength, corrosion resistance, heat resistance, and wear resistance make it an excellent choice for enduring the challenging conditions encountered in power plants, ensuring the efficient and reliable generation of electricity.

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