Reinforcing Deformed Bar Grade BS4449:1997

Reinforcing Deformed Bar Grade BS4449:1997 System 1

Reinforcing Deformed Bar Grade BS4449:1997 System 2

Reinforcing Deformed Bar Grade BS4449:1997 System 3

Reinforcing Deformed Bar Grade BS4449:1997 System 4

Reinforcing Deformed Bar Grade BS4449:1997

Ref Price:: $280.00 - 320.00 / m.t.

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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Reinforcing Deformed Bar Grade BS4449:1997

Details of Reinforcing Deformed Bar Grade BS4449:1997

Name	Deformed Bar
Shape	Round Bar
Standard	1.GB1499.2-2007, HRB335, HRB400E 2. ASTM A615 Gr.40, Gr.60 3.BS4449/1997
Diameter	6mm-50mm
Length	6m, 8m, 9m,12m as standard or as request
Test	SGS/UT 100% Elements Testing
Certificate:	ISO/Mill Certificate
Service:	24 hours online service /
Service:	more than 20 years trading and manufacture
Quality Assurance:	the third party inspection, such as SGS, BV, TUV…etc. is acceptable
Packaging Details:	Seaworthy Packaging or as per customer's packing instruction

Specification of Reinforcing Deformed Bar Grade BS4449:1997

Standard	Grade	Yield Strength Mpa	Tensile Strength Mpa	Elongation%
BS4449:1997	250	250	295	22
	460A	460	485	12
	460B	460	500	15
GB1499.2-2007	HRB335/335E	335	455	17
	HRB400/400E	400	540	17
	HRB500/500E	500	630	16
ASTM A615 & A615M-04a	GRADE40	280	420	12
	GRADE60	420	620	9
	GRADE75	520	690	7
JIS G3112-2004	SD295A	≥ 295	440-600	17
	SD295B	295-390	≥ 440	17
	SD345	345-440	≥490	19
	SD390	390-510	560	17
	SD490	490-625	≥ 620	13

Size (MM)	WEIGHT (KG/M)	WEIGHT (KG/PCS)		QUANTITY (1TONS/PCS)
Size (MM)	WEIGHT (KG/M)	LENGTH 6M	LENGTH 12M	LENGTH 6M	LENGTH 12M
6	0.222	1.332	2.664	751	375
8	0.395	2.37	4.74	422	211
10	0.617	3.702	7.404	270	135
12	0.888	5.328	10.656	188	94
14	1.21	7.26	14.52	138	69
16	1.58	9.48	18.96	106	53
18	2	12	24	83	42
20	2.47	14.82	29.64	67	34
22	2.98	17.88	35.76	56	28
25	3.85	23.1	46.2	43	22
28	4.83	28.98	57.96	35	17
32	6.31	37.86	75.72	26	13
36	7.99	47.94	95.88	21	10
40	9.87	59.22	118.44	17	8
50	15.42	92.52	185.04	11	5

CNBM Introduction of Reinforcing Deformed Bar Grade BS4449:1997 Supplier

CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.

With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.

Reinforcing Deformed Bar Grade BS4449:1997

Packaging & Delivery of Reinforcing Deformed Bar Grade BS4449:1997

Packaging Detail	Sea worthy packing /as per customer's packing instruction
Delivery Detail	15 ~ 40 days after receiving the deposit

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Reinforcing Deformed Bar Grade BS4449:1997

FAQ:

Are you a trading company or manufacturer?	Manufacturer
What’s the MOQ?	3 metric ton
What’s your delivery time?	15-35 days after downpayment received
Do you Accept OEM service?	Yes
what’s your delivery terms?	FOB/CFR/CIF
What's the Payment Terms?	30% as deposit,70% before shipment by T/T
	Western Union acceptable for small amount.
	L/C acceptable for large amount.
	Scrow ,Paybal,Alipay are also ok
Why choose us?	Chose happens because of quality, then price, We can give you both. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals.
What's your available port of Shipment?	Main Port, China
What’s your featured services?	Our service formula: good quality+ good price+ good service=customer's trust
Where are your Market?	Covering more than 160 countries in the world

Q:What are the different methods of improving the strength of special steel?: There are several methods that can be employed to improve the strength of special steel. One common method is through the process of alloying. By adding certain elements to the steel, such as manganese, chromium, or vanadium, the strength and hardness of the steel can be significantly increased. These alloying elements form strong and stable compounds with the steel, enhancing its overall strength. Another method is through heat treatment. This involves subjecting the steel to controlled heating and cooling processes to alter its microstructure. For instance, quenching and tempering can be used to increase the strength and hardness of the steel by creating a hardened martensitic structure. Precipitation hardening is another heat treatment technique which involves the formation of fine particles within the steel matrix, resulting in improved strength. Cold working is also a widely used method for strengthening special steel. By subjecting the steel to plastic deformation at low temperatures, its grain structure becomes elongated and dislocations are introduced. This leads to an increase in strength and hardness of the steel. Additionally, surface treatments can be applied to improve the strength of special steel. For example, carburizing or nitriding can be used to introduce carbon or nitrogen into the surface layer of the steel, forming a hard and wear-resistant surface. Furthermore, advancements in metallurgical technology have introduced techniques such as powder metallurgy and rapid solidification. These methods involve the production of steel with fine and homogeneous microstructures, resulting in improved strength and performance. Overall, the methods of improving the strength of special steel include alloying, heat treatment, cold working, surface treatments, and advanced metallurgical technologies. These techniques can be tailored to meet specific requirements, enabling the production of high-strength and high-performance steel for various applications.

Q:What are the properties of carbon steel?: Carbon steel is a type of steel that primarily consists of iron and carbon, with trace amounts of other elements. It is known for its high strength, durability, and ability to be easily shaped, making it suitable for a wide range of applications. It exhibits excellent hardness and wear resistance, while also being relatively low-cost compared to other types of steel. Carbon steel can be further classified based on its carbon content, with higher carbon levels providing increased hardness and strength. Additionally, it is susceptible to corrosion and requires proper maintenance to prevent rusting.

Q:How is special steel used in the construction industry?: Special steel is used in the construction industry for various applications due to its exceptional strength, durability, and resistance to corrosion. It is commonly used for manufacturing structural components, such as beams, columns, and girders, that require high load-bearing capacities. Special steel is also utilized in the construction of bridges, towers, and high-rise buildings to ensure structural integrity and safety. Additionally, it finds application in reinforcing concrete structures, creating strong and long-lasting foundations. Overall, special steel plays a crucial role in enhancing the strength and stability of construction projects.

Q:Can special steel be used for making oil and gas industry components?: Yes, special steel can be used for making oil and gas industry components. Special steels, such as stainless steel and alloy steel, are often preferred in the oil and gas industry due to their exceptional mechanical properties, corrosion resistance, and high temperature resistance. These components are exposed to harsh operating conditions, including corrosive environments, extreme temperatures, and high pressures. Special steels are specifically designed to withstand these conditions and maintain their integrity and performance over time. The use of special steels in the oil and gas industry ensures the reliability, durability, and safety of critical components, such as valves, pipes, fittings, and drilling equipment.

Q:How does molybdenum improve the performance of special steel?: Molybdenum plays a crucial role in enhancing the performance of special steel due to its unique properties and characteristics. First and foremost, molybdenum significantly improves the strength and toughness of steel, making it more durable and resistant to deformation. This is achieved by forming a solid solution with iron, which results in a fine-grained microstructure and reduces the formation of brittle phases in the steel. Moreover, molybdenum increases the hardenability of steel, allowing it to be heat-treated to obtain desired mechanical properties. This is particularly important in the production of special steel, where high strength, wear resistance, and thermal stability are often required. By enabling effective heat treatment, molybdenum ensures that the steel can be processed to meet specific performance requirements, such as hardness, toughness, and dimensional stability. Additionally, molybdenum enhances the corrosion resistance of special steel, making it suitable for various challenging environments. It forms a protective oxide layer on the surface of the steel, which acts as a barrier against corrosive substances like acids, alkalis, and salts. This resistance to corrosion is crucial in applications where the steel is exposed to harsh conditions, such as marine environments, chemical processing plants, and oil and gas industries. Furthermore, molybdenum improves the high-temperature strength and creep resistance of special steel. It enables the steel to maintain its mechanical properties even at elevated temperatures, making it suitable for applications where the steel is subject to prolonged exposure to heat or mechanical stress. In summary, molybdenum plays a vital role in enhancing the performance of special steel by improving its strength, toughness, hardenability, corrosion resistance, and high-temperature properties. These attributes make molybdenum an essential alloying element in the production of special steel for various industries, including automotive, aerospace, energy, and tool manufacturing.

Q:Is special steel suitable for manufacturing precision components?: Yes, special steel is highly suitable for manufacturing precision components. Special steel is a type of steel that is specifically engineered to possess exceptional properties, such as high strength, hardness, and resistance to wear, corrosion, and heat. These characteristics make it an ideal choice for manufacturing precision components that require tight tolerances, accuracy, and reliability. The inherent strength and hardness of special steel allow for the production of durable and long-lasting precision components. This is particularly important in industries where components are subjected to high stress and heavy loads, such as aerospace, automotive, and machinery manufacturing. Special steel's resistance to wear and corrosion ensures that the precision components can withstand harsh operating environments and maintain their functionality over time. Furthermore, special steel's excellent heat resistance makes it suitable for precision components that are exposed to elevated temperatures. This is especially relevant in industries like aerospace and power generation, where components need to withstand extreme heat without compromising their performance. Special steel also offers excellent machinability, which is crucial for manufacturing precision components with intricate designs and complex geometries. It can be easily shaped, cut, and formed into various shapes and sizes, allowing for the production of intricate and precise components. Overall, the unique properties of special steel, including high strength, hardness, resistance to wear, corrosion, and heat, as well as excellent machinability, make it highly suitable for manufacturing precision components. Its use ensures the production of high-quality components that meet the strict requirements of precision applications.

Q:What are the specific requirements for special steel used in the marine shafting industry?: The specific requirements for special steel used in the marine shafting industry are as follows: 1. Corrosion Resistance: Special steel used in marine shafting must have high resistance to corrosion due to the harsh conditions encountered in marine environments. It should be able to withstand constant exposure to saltwater, humidity, and other corrosive elements without deterioration. 2. Strength and Toughness: Marine shafting steel should possess high strength and toughness to withstand the heavy loads and vibrations experienced in marine operations. It should be able to withstand the continuous stress and dynamic loads without failure or deformation. 3. Fatigue Resistance: The steel used in marine shafting should have excellent fatigue resistance to withstand the cyclical loading experienced during operation. It should be able to endure millions of load cycles without developing cracks or fractures. 4. Dimensional Stability: Special steel used in marine shafting must exhibit dimensional stability to ensure precise alignment and fit within the machinery. It should have minimal dimensional changes under varying temperature and humidity conditions to maintain the integrity of the shaft system. 5. Machinability: It is essential for the steel used in marine shafting to be easily machinable to create complex shapes, such as propeller shafts and couplings. This allows for efficient manufacturing and maintenance of the shafting components. 6. Non-Magnetic Properties: Special steel used in marine shafting must possess low magnetic permeability to avoid interference with sensitive navigation and communication equipment. Non-magnetic properties minimize the risk of compass errors and electromagnetic interference. 7. Certification and Compliance: The steel used in marine shafting should meet specific industry standards and certifications, such as those set by classification societies like the American Bureau of Shipping (ABS) or the International Association of Classification Societies (IACS). These certifications ensure the steel's quality, performance, and adherence to safety regulations. Meeting these specific requirements ensures that the special steel used in marine shafting provides reliable performance, durability, and safety in marine applications.

Q:How is electrical steel used in the production of transformers and motors?: Electrical steel is primarily used in the production of transformers and motors due to its magnetic properties. It is used as the core material in the construction of transformers to efficiently transmit electrical energy by reducing energy losses through magnetic hysteresis and eddy currents. In motors, electrical steel is used to create the stator and rotor laminations, which enhance the magnetic field and enable efficient conversion of electrical energy into mechanical motion. Overall, electrical steel plays a crucial role in improving the performance and energy efficiency of transformers and motors.

Q:What are the main factors affecting the creep rupture strength of special steel?: The creep rupture strength of special steel is influenced by various key parameters. These factors can be categorized into several categories. Firstly, temperature plays a significant role in determining the creep rupture strength of special steel. The operating temperature affects atomic diffusion and dislocation movement, which in turn leads to accelerated deformation and eventual failure. Higher temperatures can greatly reduce the creep rupture strength of special steel. Secondly, the time duration of the applied load also affects creep rupture strength. Creep is a time-dependent phenomenon, meaning that the longer the steel is under stress, the more likely it is to experience rupture. The relationship between time and creep rupture strength is usually described by a power law equation, with longer durations resulting in lower rupture strength. The stress level is another critical factor that influences creep rupture strength. Higher levels of stress lead to faster deformation and shorter time to rupture. Therefore, it is important to ensure that the stress applied to special steel remains within an acceptable range to maintain its desired creep rupture strength. The microstructure of special steel is crucial in determining its creep rupture strength. Factors like grain size, grain boundary characteristics, and the presence of alloying elements all impact the steel's resistance to creep deformation and rupture. Fine-grained microstructures with a high density of grain boundaries tend to exhibit better creep resistance and higher rupture strength. The chemical composition of special steel also significantly affects its creep rupture strength. The addition of certain alloying elements, such as chromium, molybdenum, and vanadium, enhances the steel's high-temperature strength and resistance to creep deformation. These elements form stable carbides that hinder dislocation movement and improve the material's creep rupture strength. Furthermore, the heat treatment process used to modify the microstructure of special steel can also impact its creep rupture strength. Proper heat treatment optimizes grain size, the distribution of alloying elements, and overall microstructure, resulting in improved creep resistance and higher rupture strength. In conclusion, the creep rupture strength of special steel is influenced by temperature, time, stress level, microstructure, composition, and heat treatment. Understanding and controlling these parameters are vital in ensuring the desired performance and reliability of special steel in high-temperature and long-term applications.

Q:How does special steel perform in defense applications?: Due to its exceptional properties and performance, special steel holds great value in defense applications. Its superior strength and toughness make it highly resistant to impact and penetration, providing crucial protection against projectiles, explosives, and other threats. Moreover, special steel's excellent hardness and wear resistance make it an ideal choice for armor plates, vehicle components, and protective gear. Its hardness allows it to withstand high-velocity impacts, while its wear resistance ensures durability and longevity even in extreme conditions. Additionally, special steel exhibits outstanding corrosion resistance, which is essential in defense applications exposed to harsh environments, saltwater, and chemicals. This resistance helps maintain the structural integrity and performance of defense equipment, even in challenging conditions. Furthermore, special steel can be customized to meet specific requirements, allowing for tailored defense applications. By adjusting the alloy composition and heat treatment processes, special steel can be optimized for purposes such as ballistic armor, submarine hulls, or aircraft components. Overall, special steel's exceptional strength, toughness, hardness, wear resistance, corrosion resistance, and customizability make it an invaluable material in defense applications. It provides the necessary protection, durability, and reliability required to safeguard military personnel, vehicles, and equipment in various challenging scenarios.

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