Carbon Steel Seamless Pipe with FBE coating

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1.Specification:

Iterm		Seamless steel pipe/tube
Size		OD:21.3-610mm WT:2.24-30.96mm
Length		5.8-12m
Application		Usage for fluid transportation ,structure, and so on
Surface Treatment		3PE/2PE,3PP/2PP,FBE,EPOXY COATING
Packing		Hexagon bundle with waterproof packing or as client's requirement
API	Standard	API 5L
	material	Gr.B, X42,X46,X52,X56,X60,X65,X70
ASTM	Standard	ASTM A106, ASTM A53
	material	A106(A B), A53(AB)
DIN	Standard	DIN1626,DIN17175,DIN1629
	material	St37,st42,st35.8,st45-8,st45-4
JIS	Standard	JISG 3454,JISG3456,JISG3461,JISG3455
	material	STPG42,STB42,STS 42
GB	Standard	GB 8163/8162
	material	20#,10#,45#,Q345,20Cr,40Cr,12CrMov
Payment terms		TT or L/C
Delivery time		Within 30 days after receive the prepayment by TT

ANTICORROSION STEEL PIPE SPECIFICATION :

1. 3PE COATING

STANDARD: GB/T23257-2009, SY/T0413-2002, DIN30670-91,CAN/CSA-Z245.21-M92

SIZE: OD :89mm-1820mm WT: 6mm-20mm

2. EPOXY COATING

STANDARD:SY/T0447-96 GB50268-2008

3. FEB COATING

STANDARD: SY/T0315-97,SY/T0315-2005,CAN/CSA-Z245.20-M98,DIN30671,Q/CNPC38-2002

SIZE: OD: 89mm-1820mm WT: 6mm-20mm

4. CEMENT MORTAR COATING

STANDARD: CECS10:89, GB50268-2008

SIZE: OD :159mm-2220mm

Q:How are steel pipes tested for strength and durability?: Steel pipes are typically tested for strength and durability through various methods, including non-destructive testing techniques such as ultrasonic testing, magnetic particle inspection, and visual inspection. These tests help identify any potential defects, cracks, or flaws in the pipes. Additionally, destructive tests like tensile testing and impact testing are conducted to measure the strength and toughness of the steel pipes. These rigorous testing procedures ensure that the pipes meet the required standards and can withstand the intended applications.

Q:What is the role of steel pipes in the construction of bridges and tunnels?: Steel pipes play a vital role in the construction of bridges and tunnels as they provide structural support and durability. They are commonly used for the fabrication of the framework and foundation of these infrastructures. Steel pipes offer high tensile strength, corrosion resistance, and the ability to withstand heavy loads, making them an ideal choice for ensuring the integrity and longevity of bridges and tunnels. Additionally, steel pipes can be easily welded, allowing for efficient and cost-effective construction methods.

Q:How is the steel pipe dance installed at home?: According to international competition practice, the standard size of steel tube is 40 mm or 45 mm in diameter, and the 45mm is usually used. The height of the steel pipe is not less than 3.3 meters and not higher than 4 meters. The steel pipe fittings used in the pipe dance are made of smooth surface material, usually chrome or polished by steel or iron.

Q:How are steel pipes repaired if they are damaged?: Steel pipes can be repaired if they are damaged through various methods such as welding, patching, or using pipe clamps.

Q:What is the elasticity of steel pipes?: The elasticity of steel pipes refers to their ability to deform under external forces and return to their original shape once the force is removed. Steel pipes are known for their high elasticity, which enables them to withstand various forms of stress and strain without permanent deformation. This property is crucial in applications where pipes are subjected to pressure, bending, or other mechanical forces. The elasticity of steel pipes is determined by the material properties of steel, such as its Young's modulus, which is a measure of its stiffness and ability to resist deformation.

Q:How do you inspect steel pipes for defects?: There are several methods to inspect steel pipes for defects. One common approach is visual inspection, where trained professionals examine the surface of the pipes for visible defects such as cracks, corrosion, or deformities. Another method is ultrasonic testing, which involves using high-frequency sound waves to detect internal defects like wall thickness variations or cracks. Magnetic particle inspection is also commonly used, where the pipes are magnetized, and magnetic particles are applied to reveal surface defects. X-ray and radiographic inspections can be employed to detect internal defects as well. Ultimately, a combination of these methods is often utilized to ensure thorough inspection and identification of any defects in steel pipes.

Q:Are steel pipes environmentally friendly?: There are several reasons why steel pipes can be considered environmentally friendly. To begin with, steel is an incredibly durable and long-lasting material, giving steel pipes a longer lifespan in comparison to plastic pipes and other materials. This reduces the need for frequent replacements and repairs, resulting in less waste and conservation of resources. Another point to consider is that steel is highly recyclable. When steel pipes reach the end of their lifespan, they can be easily and efficiently recycled without losing their properties or quality. This reduces the demand for new steel production, which often requires substantial amounts of energy and resources. Moreover, steel pipes possess a high resistance to corrosion, meaning that they necessitate fewer chemical treatments to prevent rusting and maintain their structural integrity. Consequently, this diminishes the release of harmful chemicals into the environment and minimizes the impact on ecosystems and human health. Additionally, it is important to highlight that steel pipes find application in various industries, including water supply and wastewater management. Renowned for their exceptional strength and reliability, steel pipes ensure the safe and efficient transportation of fluids. This lowers the risk of leaks and spills, averting water source contamination and safeguarding the environment. Nevertheless, it is crucial to acknowledge that the production of steel pipes does have some environmental consequences. The extraction of raw materials, such as iron ore and coal, demands energy and can contribute to deforestation, habitat destruction, and greenhouse gas emissions. Additionally, the manufacturing process itself generates emissions and waste. Overall, although steel pipes are not entirely devoid of environmental impact, their durability, recyclability, and resistance to corrosion make them a comparatively environmentally friendly choice when compared to alternative materials.

Q:Are steel pipes suitable for industrial cooling systems?: Yes, steel pipes are suitable for industrial cooling systems. They are highly durable, resistant to corrosion, and can withstand high pressures and temperatures. Additionally, steel pipes have excellent heat transfer properties, making them efficient for cooling applications.

Q:How are steel pipes classified according to their wall thickness?: Steel pipes are classified according to their wall thickness into three categories: standard weight, extra-strong, and double extra-strong.

Q:How can galvanized steel tubes be painted on the surface?: Suitable for galvanized base material (antirust primer), epoxy zinc yellow primer (double component), epoxy ester zinc yellow primer.Pretreatment of galvanized sheet when brushing:1, conditional, you can zinc plating phosphating treatment, or first spray a layer of phosphating primer.2, or smooth zinc plating surface sweeping treatment.3, the galvanized workpiece, galvanized pipe surface with solvent (that is, epoxy zinc yellow primer, thinner) wipe, in order to remove the workpiece crude oil protective layer, and increase cleanliness.4, two-component epoxy zinc yellow primer: in strict accordance with the proportion of paint and curing agent paint, and aging 30 minutes later, modulation suitable construction viscosity, you can spray.One component epoxy ester primer: zinc yellow construction viscosity suitable to construction of modulation, the correct construction method.

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