Galvanized Steel Circle Pipe Q345 Grade

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 100 m.t.

Supply Capability:: 1000 m.t./month

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Galvanized Steel Circle Pipe Q345 Grade

Description for Galvanized Steel Circle Pipe :

Type	Galvanized Steel Circle Pipe
Steel Grade	Q345,Q195,215,Q235,
Steel Grade	HRB400E,HRB500E ,Q235 , Q195
Size	DIA 13-25.4mm, 18-25.4mm,25.4-34mm,34-50.8mm,50.8-79.2mm
Thickness	0.5-1.5mm,1.5-2.0mm,0.7-2.0mm,0.8-3.0mm,1.0-3.0mm
Application	Building/project construction
Packing	5.5mm-10mm:packing In coil. 10mm-32mm:in bundle.
MOQ	300tons ( trial order 100tons acceptable ).
Capacity	150000tons /month.
Delivery Time	15days after the order confirmation .
Payment	T/T , West Union , Cash , L/C.
Trade Terms	FOB, CFR, CIF ,EXW
Trans term	FIO , FILO , FLT

Datas Chart for Galvanized Steel Circle Pipe :

Content	C%	Mn%	Si%	P%	S%	V%	Ceq%
HRB335	0.17-0.25	1.00-1.60	0.40-0.80	≤0.045	≤0.045		≤0.52
HRB400	0.20-0.25	1.30-1.60	0.40-0.80	≤0.035	≤0.035	0.05-0.08	≤0.54
HRB500	0.25	1.6	0.80	≤0.045	≤0.045		≤0.55
HRB500E	0.20-0.24	1.20-1.50	0.40-0.65	≤0.045	≤0.045	0.050-0.120	≤0.55

Main Structure of Galvanized Steel Circle Pipe

l Mechanics Performance

Grade	Technical data of the original chemical composition(%)
	C	Mn	Si		S	P	Ceq
HRB500	≤0.25	≤1.60	≤0.80		≤0.045	≤0.045	≤ 0.55
	Mechanical Characterics
	Yield Strength (N/cm2)			Tensile Strength (N/cm2)		Elongation (%)
	≥500			≥630		≥14

l Mechanics Performance

Grade	Technical data of the original chemical composition(%)
	C	Mn	Si	S	P	Ceq
HRB400	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045	≤ 0.54
	Physics capability
	Yield Strength (N/cm2)		Tensile Strength (N/cm2)		Elongation (%)
	≥400		≥570		≥16

FAQ:

Why should you choose us:

Stable quality ----continous casting hot rolled production techenic, strictly quality control system.
Lower price -------Not the cheapest but the lowest price at the same quality .
Good service -----Satisfactory service within 24hours.
Delivery time ------15-25days for the mass production .
Discount---------------discount base on monthly large quantity purchase in long term.

Picture:

Galvanized Steel Circle Pipe Q345 Grade

Q:What are the environmental impacts of steel pipe production and disposal?: The production and disposal of steel pipes have significant environmental impacts. Firstly, the production of steel pipes requires the extraction of raw materials such as iron ore, coal, and limestone. This extraction process leads to habitat destruction, deforestation, and soil erosion. Additionally, mining and processing these materials require a considerable amount of energy, often derived from fossil fuels, contributing to greenhouse gas emissions and air pollution. The manufacturing process itself involves various stages, including melting, casting, rolling, and coating, all of which require substantial energy inputs and emit significant amounts of carbon dioxide and other greenhouse gases. Moreover, the production of steel pipes involves the use of chemicals and additives that can be harmful to the environment if not managed properly. Furthermore, during the disposal of steel pipes, if not recycled or properly managed, they can end up in landfills, contributing to waste accumulation and taking up valuable space. Steel is generally non-biodegradable and can take hundreds of years to decompose. When steel pipes are dumped in landfills, they can release toxic substances and heavy metals, which can contaminate soil and groundwater. However, it is important to note that steel pipes are highly recyclable, and recycling them significantly reduces the environmental impact. Recycling steel pipes helps conserve natural resources, reduces energy consumption, and lowers greenhouse gas emissions. Additionally, using recycled steel in the production of new pipes requires less energy and results in fewer emissions compared to using virgin materials. To minimize the environmental impacts of steel pipe production and disposal, it is crucial to promote sustainable practices throughout the entire lifecycle of the product. This includes reducing energy consumption, utilizing renewable energy sources, implementing proper waste management strategies, and encouraging the recycling and reuse of steel pipes.

Q:What are the quality control measures for steel pipe manufacturing?: Quality control measures for steel pipe manufacturing include various inspections and tests to ensure the pipes meet the required standards and specifications. Some common quality control measures include visual inspections for surface defects, dimensional checks to ensure accurate size and length, ultrasonic or magnetic particle testing for detecting internal or surface defects, hydrostatic testing to check for leaks or weaknesses, and chemical analysis to verify the composition of the steel. Additionally, adherence to proper manufacturing processes, documentation of procedures, and regular audits are also part of quality control measures in steel pipe manufacturing.

Q:How are steel pipes protected against lightning strikes?: Steel pipes are protected against lightning strikes by installing lightning rods or grounding systems near the pipes. These systems provide a path of least resistance for lightning to follow, diverting the electrical current away from the pipes and minimizing the risk of damage or explosions.

Q:What does carbon seamless steel pipe mean? What is the difference between a seamless 20# and an ordinary one? What is it used in detail?: Carbon steel is actually relative to alloy steel, mainly carbon content, and 20# seamless steel is carbon steel! In addition, there are stainless steel, stainless steel is considered a kind of alloy steel, but the processing is not the same, the performance is not the same, good looking outside!The description of the material in alloy steel is actually the content of the metal elements in the steel (usually the percentage number).

Q:What are the common standards and specifications for steel pipes?: The common standards and specifications for steel pipes include ASTM A53, ASTM A106, API 5L, and ISO 3183. These standards outline the requirements for the manufacturing, dimensions, and mechanical properties of steel pipes used in various industries such as oil and gas, construction, and transportation. Additionally, specific applications may have their own standards and specifications that need to be met for quality and safety purposes.

Q:Can steel pipes be used for conveying solid materials?: Yes, steel pipes can be used for conveying solid materials. Steel pipes are known for their high strength and durability, making them suitable for transporting solid materials such as ores, grains, or construction materials. They are commonly used in industries such as mining, agriculture, and construction for this purpose.

Q:What are the different types of joints used to connect steel pipes?: There are several types of joints commonly used to connect steel pipes, including threaded joints, welded joints, flanged joints, and grooved joints.

Q:How are steel pipes used in the construction of airports?: Steel pipes are used in the construction of airports for various purposes such as drainage systems, fuel pipelines, water supply networks, and structural support for buildings and runways.

Q:Are steel pipes suitable for wastewater treatment facilities?: Yes, steel pipes are suitable for wastewater treatment facilities. Steel pipes are commonly used in these facilities due to their high strength, durability, and resistance to corrosion. Wastewater treatment facilities typically handle corrosive and abrasive materials, and steel pipes are able to withstand these harsh conditions. Additionally, steel pipes are available in various sizes and configurations, allowing for easy installation and customization to meet the specific needs of the facility. Furthermore, steel pipes can be easily repaired or replaced if necessary, ensuring the longevity and reliability of the wastewater treatment system. Overall, steel pipes are a suitable choice for wastewater treatment facilities due to their strength, durability, corrosion resistance, and flexibility in installation and maintenance.

Q:Can steel pipes be used for oil and gas pipelines?: Yes, steel pipes are commonly used for oil and gas pipelines due to their high strength, durability, and resistance to corrosion.

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