High Tensile Steel Rebar ASTM BS4449 Rebar Steel

High Tensile Steel Rebar ASTM BS4449 Rebar Steel

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 100 m.t.

Supply Capability:: 5000 m.t./month

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High Tensile Steel Rebar ASTM BS4449 Rebar Steel

Structure of High Tensile Steel Rebar:

Type	Deformed steel bar/ TMT bars	MOQ	500 MT (Trial order accepted)
Standard Grade	GB1499.2-2007, HRB335, HRB400, HRB500. BS4449/2005, B500A, B500B etc.. ASTM A615 Gr.40, Gr60, KS, SD400, SD500 and so on..
Technique	Hot rolled continuous casting	Length	6, 9,12m, or as requested
Size	6mm-32mm	Payment terms	T/T, L/C at sight, Usance L/C
Packing	In bundle	Inspection	Third party inspection accepted
Trade terms	EXW, FOB, CFR, CIF	Trans terms	FIO, FILO, FLT
Delivery time	15-30 days, according to the quantity	Note	Customized service is available (for sizes,length and chemical components etc.).

Main Features of High Tensil Steel Rebar:

HRB335	Chemical composition	C	Mn	Si	S	P
		0.17-0.25	1.0-1.6	0.4-0.8	0.045 Max.	0.045 Max.
	Mechanical Property	Yield strength		Tensile strength		Elongation
		≥335 Mpa		≥455 Mpa		17%

HRB400	Chemical composition	C	Mn	Si	S	P
		0.17-0.25	1.2-1.6	0.2-0.8	0.045 Max.	0.045 Max.
	Mechanical Property	Yield strength		Tensile strength		Elongation
		≥400 Mpa		≥540 Mpa		16%

HRB500	Chemical composition	C	Mn	Si	S	P
		0.25 Max.	1.6 Max.	0.8 Max.	0.045 Max.	0.045 Max.
	Mechanical Property	Yield strength		Tensile strength		Elongation
		≥500 Mpa		≥630 Mpa		15%

Specifications and Datas:

Deformed steel bar
Diameter (mm)	Theoretical weight (kg/m)	Pieces/Mt (pcs)	Length (m)	Standard
6	0.222	375	12	GB1499-48, HRB335, HRB400, HRB500 BS4449-97, Gr.460B,B500
8	0.395	211
10	0.617	135
12	0.888	94
14	1.21	69
16	1.58	53
18	2	42
20	2.47	34
22	2.98	28
25	3.85	22
28	4.83	17
32	6.31	13
36	7.99	10
40	9.87	8
50	15.42	5

FAQ:

Why choose us:

1. More than 10 years experience in this industry

2. 100,000 tons exporting per month

3. Professional foreign trade team

4. OEM&ODM capacity

5. High quality assured & competitive price

6. Try our best to meet your needs & save your budget

7. Very popular in Southeast Asia, Africa, Mid-East and South America etc.

8. VIP membership system, first time customers and long-term cooperation customers can get extra discount on some products.

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High Tensile Steel Rebar ASTM BS4449 Rebar Steel

Q: What is the expected joint tightness for ductile iron pipes?: The expected joint tightness for ductile iron pipes is typically high due to the robustness of the material and the quality of the jointing methods used, such as rubber gaskets or mechanical couplings. This ensures a reliable and leak-free performance in various applications.

Q: How do ductile iron pipes perform in cold weather conditions?: Ductile iron pipes are known for their excellent performance in cold weather conditions. Unlike other materials, such as cast iron or PVC, ductile iron has exceptional resistance to low temperatures. This is primarily due to its unique microstructure, which enables it to withstand extreme weather conditions without compromising its structural integrity. In cold weather, ductile iron pipes have a low coefficient of thermal expansion, meaning they do not contract or expand significantly with temperature changes. This characteristic allows them to remain stable and resistant to cracking or bursting, even in freezing temperatures. Additionally, the ductile iron material has high impact resistance, which further enhances its ability to withstand the stress imposed by cold weather conditions. Furthermore, ductile iron pipes have a protective lining, typically made of cement mortar or epoxy, which acts as an additional barrier against the effects of cold weather. This lining prevents the formation of ice on the inner surface of the pipes, reducing the risk of blockages or reduced flow capacity. Overall, ductile iron pipes are a reliable choice for cold weather conditions. Their durability, low thermal expansion, and protective lining make them highly resistant to the challenges posed by freezing temperatures. Whether it is for water supply, sewer systems, or other applications, ductile iron pipes have proven their ability to perform effectively even in the harshest winter climates.

Q: Are ductile iron pipes resistant to abrasion?: Yes, ductile iron pipes are highly resistant to abrasion.

Q: Can ductile iron pipe be used for desalination plants?: Certainly, desalination plants can utilize ductile iron pipe. Ductile iron, a robust and enduring material, has found extensive application across various industries, notably in water and wastewater treatment facilities. It boasts exceptional resistance against corrosion, remarkable tensile strength, and the ability to withstand external loads and pressures. Consequently, it proves ideal for conveying water and other fluids within desalination plants, where the presence of high salt concentration and other corrosive elements prevails. Furthermore, ductile iron pipes are renowned for their prolonged service life and minimal maintenance demands, rendering them advantageous to desalination plants that operate continuously and necessitate a dependable and efficient piping system.

Q: What effect does magnesium play in nodular cast iron?: Magnesium can be graphite precipitated in spherical form.But the specific mechanism is not clear, and now it is still debated in the academic circles.In addition, magnesium and sulfur generate MgS, which removes S from molten iron, which impedes the formation of spheroidal graphite.Therefore, Mg has two functions to eliminate the influence of S on Nodular Iron and promote the precipitation of graphite in spherical form.

Q: Are ductile iron pipes suitable for use in hydroelectric dams?: Yes, ductile iron pipes are suitable for use in hydroelectric dams. Ductile iron is a type of iron that has a higher degree of flexibility and strength compared to traditional cast iron. This makes it an ideal choice for many applications, including water transmission systems in hydroelectric dams. Ductile iron pipes are known for their durability and resistance to corrosion, which is crucial in a dam environment where water exposure is constant. They can withstand high pressures and extreme temperatures, making them suitable for the demanding conditions found within hydroelectric dams. Additionally, ductile iron pipes have excellent joint integrity, ensuring that they remain leak-proof and reliable over their lifespan. This is important for maintaining the efficiency and effectiveness of a hydroelectric dam's water transmission system. Furthermore, ductile iron pipes are cost-effective compared to other materials, such as steel or concrete. They have a long service life, require minimal maintenance, and are readily available, making them a practical choice for hydroelectric dam projects. In conclusion, ductile iron pipes are a suitable choice for use in hydroelectric dams due to their durability, resistance to corrosion, high-pressure tolerance, joint integrity, and cost-effectiveness. They provide the necessary strength and flexibility to efficiently transport water within the dam, contributing to the overall success and longevity of the hydroelectric power generation system.

Q: Are ductile iron pipes suitable for tunneling projects?: Yes, ductile iron pipes are suitable for tunneling projects. Ductile iron pipes are known for their strength, durability, and flexibility, making them an ideal choice for underground tunnels. They can withstand high pressure and heavy loads, making them suitable for various tunneling applications such as water and sewer systems. Ductile iron pipes also have excellent corrosion resistance, which is essential in underground environments where they may be exposed to moisture, chemicals, and other corrosive elements. Additionally, ductile iron pipes are relatively easy to install and maintain, making them a cost-effective option for tunneling projects. Overall, ductile iron pipes offer the necessary qualities required for tunneling projects, making them a suitable choice for such applications.

Q: Do ductile iron pipes require external coatings or wraps?: Yes, ductile iron pipes typically require external coatings or wraps for protection against corrosion and to extend their lifespan.

Q: Why does the construction wastewater system use ductile iron pipes instead of galvanized steel tubes?: Then answer your question: first, the strength of ductile iron is much higher than that of ordinary low carbon steel, such as Q235. Corrosion resistance is much higher than that of ordinary steel pipe and the cost is lower than that of ordinary steel pipe. Second, large diameter steel pipe can only be made of spiral welded pipe, seamless steel pipe is particularly expensive, will not be used. The welded pipe is welded, easy to corrosion water leakage. Third, galvanizing is also a life and very expensive, the pipe has a fluid will wear on the inner wall, zinc plating is meaningless. Galvanized pipe is generally used as a water supply pipe, large caliber water pipes, such as more than 250, and now do not use steel pipes, mostly plastic pipes

Q: Can ductile iron pipes be used for fire protection systems?: Fire protection systems can utilize ductile iron pipes. Ductile iron, a form of cast iron, possesses both strength and flexibility, making it suitable for various applications, including fire protection systems. It boasts excellent mechanical properties, such as high tensile strength and impact resistance, which are essential for withstanding the pressures and stresses that can arise during fire suppression efforts. Ductile iron pipes are renowned for their durability and long lifespan, which is crucial for reliable and functional fire protection systems. They have a longer lifespan compared to materials like PVC or galvanized steel and are less susceptible to corrosion. This is particularly important for fire protection systems, as they must remain operational even after extended periods of inactivity. Additionally, ductile iron pipes exhibit exceptional fire resistance. They can withstand high temperatures without compromising their structural integrity, ensuring the fire protection system remains intact and functional during fire emergencies. This is pivotal for ensuring the safety of occupants and minimizing property damage. Furthermore, ductile iron pipes are compatible with a wide range of fittings, valves, and accessories commonly used in fire protection systems. This facilitates easy installation and integration into existing fire suppression networks. In conclusion, ductile iron pipes are a reliable and suitable choice for fire protection systems due to their strength, durability, fire resistance, and compatibility with other system components.

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