SPIRAL STEEL PIPE 52‘‘ ASTM API LARGE DIAMETER PIPE

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 3000 m.t./month

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Packaging & Delivery

Packaging Detail:	standard export packing or as customer's requirement
Delivery Detail:	within 10 - 30 days

Specifications

Spiral Welded Steel Pipes and Tubes
1.Material:Q195-Q235
2.Length:1-12m
3.WT:1.0-14mm
4.O.D.:20-273mm

Spiral Welded Steel Pipes and Tubes

Product Description:

1.Material : Q235,Q345,L245,L290,L360,L415,L450,L485,GrB,X42,46,X52,X56,X60,X65,X70,X80,X100

2,Standard: SY/T5037-2000,GB/T9711-2011,API Spec 5L PSL1/PSL2,ASTM A252\A53,ISO3183,DIN17172,EN10217,JIS G3457,AWWA C200,ASTM A139,ASTM A671,ASTM A672

3.Wall thickness: 3.0mm-30mm

4.Outer diameter: φ168mm-3020mm

5,Length: 5m-12m or as your requirement

6,Corrosion protection standard: DIN30670,DIN30671, AWWAC210, AWWA C203, SY/T0413-2002,SY/T0414-2002

7,Application: Oil, gas, natural gas, water pipe, thermal electricity pipe, steel structure engineering, etc

Q195-q345 Material Steel Pipe's Materials

Elements Material	Chemical Compsition%					Mechanical Property
	C%	Mn%	S%	P%	Si%	Yield Point (Mpa)	Tensile Strength(Mpa)	Elongation (%)
Q195	0.06-0.12	0.25-0.50	<0.050< span="">	<0.045< span="">	<0.030< span="">	>195	315-430	32-33
Q215	0.09-0.15	0.25-0.55	<0.05< span="">	<0.045< span="">	<0.030< span="">	>215	335-450	26-31
Q235	0.12-0.20	0.30-0.70	<0.045< span="">	<0.045< span="">	<0.030< span="">	>235	375-500	24-26
Q345	<0.20< span="">	1.0-1.6	<0.040< span="">	<0.040< span="">	<0.55< span="">	>345	470-630	21-22

Q:Can steel pipes be used for water supply networks?: Yes, steel pipes can be used for water supply networks. They are commonly used due to their durability, strength, and resistance to corrosion. However, proper coatings and maintenance are necessary to prevent rusting and ensure the quality of the water supply.

Q:Is steel pipe made of profiles?: According to the shape of the cross-section, the steel is generally divided into profiles, plates, pipes and metal products in four categories.Therefore, the steel pipe belongs to the pipe, not the profile.

Q:Can steel pipes be used in extreme weather conditions?: Steel pipes are suitable for use in extreme weather conditions because they are known for their high strength and durability. This makes them applicable in construction, infrastructure, and transportation. Steel pipes are commonly used to transport fluids and gases across industries and are specifically designed to withstand harsh environmental conditions such as extreme temperatures, high pressures, and corrosive environments. Even in extreme weather conditions like intense heat, cold, or heavy rain, steel pipes can maintain their structural integrity and functionality. Moreover, they can be coated or insulated to provide extra protection against corrosion and maintain desired temperatures. In conclusion, steel pipes are a dependable option for extreme weather conditions due to their strength, durability, and ability to resist various environmental factors.

Q:Can steel pipes be used for wastewater disposal?: Yes, steel pipes can be used for wastewater disposal. Steel pipes are commonly used in wastewater systems due to their durability, strength, and resistance to corrosion. They can handle the high pressure and flow rates often associated with wastewater and can effectively transport it to treatment plants or other disposal points. Additionally, steel pipes can be coated or lined with materials that provide extra protection against corrosion or chemical reactions with the wastewater, further increasing their longevity and effectiveness in wastewater disposal.

Q:How do you prevent steel pipes from freezing in cold climates?: One way to prevent steel pipes from freezing in cold climates is by insulating them. Insulation materials such as foam or fiberglass can be wrapped around the pipes to prevent heat loss and keep them at a stable temperature. Additionally, using heat tape or cables can provide an extra layer of protection by applying low-level heat to the pipes. It is also important to ensure that pipes are properly sealed and any cracks or gaps are sealed to prevent cold air from entering and freezing the pipes.

Q:What are the specifications for steel pipes used in high-pressure applications?: The specifications for steel pipes used in high-pressure applications typically include requirements for the pipe material, such as high strength and resistance to corrosion, as well as specific dimensions, thickness, and wall thickness to withstand the pressure. Additionally, they may need to meet specific industry standards, such as ASTM or ASME, and be tested for quality assurance, including pressure testing and non-destructive testing methods.

Q:How are steel pipes protected against external impact or mechanical damage?: Various methods are employed to protect steel pipes from external impact or mechanical damage. One commonly utilized technique involves applying a protective coating onto the pipe's surface. This coating acts as a barrier, preventing direct contact between the pipe and external objects or forces. Coatings such as epoxy, polyethylene, or polyurethane are frequently chosen due to their excellent resistance to impact and abrasion. Another method of protection involves the use of pipe supports or clamps. These supports are positioned at regular intervals along the pipe's length, ensuring stability and minimizing excessive movement or vibration. They help distribute the load and absorb any external impacts, thus reducing the risk of mechanical damage. Additionally, steel pipes can be reinforced by wrapping them with materials like fiberglass, carbon fiber, or kevlar. These reinforcement materials provide an extra layer of strength and durability, enhancing the pipes' resistance to external impact and mechanical damage. Furthermore, burying the pipes underground or installing them within protective casings can offer an additional layer of protection. This measure shields the pipes from direct contact with external objects, reducing the potential for damage caused by accidental impacts or environmental factors. In conclusion, a combination of protective coatings, supports, reinforcements, and appropriate installation methods ensures that steel pipes are safeguarded against external impact or mechanical damage. This effectively extends their lifespan and maintains their structural integrity.

Q:How are steel pipes used in the infrastructure development?: Steel pipes are widely used in infrastructure development for various purposes. They are commonly used for transporting water, oil, and gas, as well as for drainage systems and sewage networks. Steel pipes are also used in the construction of bridges, buildings, and highways, providing structural support and stability. Additionally, steel pipes are utilized in underground utilities, such as telecommunications and electrical systems. Their durability, strength, and resistance to corrosion make steel pipes a crucial component in infrastructure development.

Q:How are steel pipes protected against soil movement?: Steel pipes are protected against soil movement through the use of various measures such as proper installation techniques, trench stabilization, and the implementation of protective coatings. Additionally, the pipes may be anchored or encased in concrete to prevent movement or damage caused by shifting soil.

Q:Difference and application of seamless hot rolled pipe and cold drawn pipe in seamless steel tube: purpose2.1 seamless tubes are widely used. General purpose seamless tubes are rolled from plain carbon structural steel, low-alloy structural steel or alloy structural steel, with the most output and are used primarily as pipes or structural parts for conveying fluids2.2, divided into three kinds according to the supply of different uses: the supply of a, according to the chemical composition and mechanical properties; the supply of B, according to the mechanical properties; the supply of C, according to the hydraulic pressure test. According to a, the B class steel supply, such as for under fluid pressure, but also to the pressure test.2.3. Seamless tubes for special purposes include seamless tubes for boilers, seamless tubes for geology, and seamless pipes for petroleum use

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