Cold Drawn Carbon Steel Seamless Pipe CR-MO ALLOY CNBM

Cold Drawn Carbon Steel Seamless Pipe CR-MO ALLOY CNBM System 1

Cold Drawn Carbon Steel Seamless Pipe CR-MO ALLOY CNBM

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 30 pc/month

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Quick Details

Thickness:	1.2 - 20 mm	Section Shape:	Round	Outer Diameter:	12.7 - 168 mm
		Secondary Or Not:	Non-secondary	Application:	Boiler Pipe
Technique:	Cold Drawn	Certification:	PED	Surface Treatment:	oil coating
Special Pipe:	Thick Wall Pipe	Alloy Or Not:	Is Alloy	ASTM A213:	T2,T5,T9,T11,T12,T22,T23,T91,T91
ASTM A335:	P1,P2,P5,P9,P11,P12,P22,P23,P91,P92	DIN17175:	15Mo3,10CrMo910,12CrMo195,13CrMo44	Grade:	12Cr1MoV,Cr5Mo,Cr9Mo,12Cr1MoVG,Cr5MoG,A335 P11,A335 P5,A335 P9,A335 P1,A213,A192,A210,A335 P12,A335 P23,St35.8,Cr-Mo alloy,A53-A369,ST35-ST52
Standard:	BS 3059-2,DIN EN 10216-1-2004,DIN 17175,ASTM A213-2001,ANSI A210-1996,ASTM A179-1990,BS,DIN,ASTM

Packaging & Delivery

Packaging Detail:	Seaworthy export packing
Delivery Detail:	45 Days

Specifications

Standard:ASTM A179,DIN17175
Material:SA179,ST35.8
Size:12*1.2-168*20
Manufacture:cold drawn
Heat treating: normalized

Product Description

Commodity: cold drawn carbon steel seamless pipe

Standard&material: ASTM A213 T2,T5,T9,T11,T12,T22,T23,T91,T92, ASTM A335 P1,P2,P5,P9,P11,P12,P22,P23,P91,P92, DIN17175 15Mo3,10CrMo910,12CrMo195,13CrMo44, and equivalent standard and material.

Size range: 12mm*1.2mm - 168mm*20mm

Manufacture method: cold rolled, cold drawn

Delivery condition: Normalized, Normalized and Tempered.

Mill test certificate as per EN10204 3.1B is available.

Third party inspection is acceptable.

Tubes will be ECT+UT.

Packaging & Shipping

Packing: tubes will be packed in bundles tied with steel strips.

Oil coating,varnish,or black painting to be confirmed.

End plastic caps to be confirmed.

External packing by knit bags.

Marking: to be confirmed.

Q: How are steel pipes protected against electrolytic corrosion?: Various methods can be employed to safeguard steel pipes against electrolytic corrosion. One commonly utilized approach involves the application of protective coatings on the pipe's surface. These coatings serve as a barrier, effectively preventing direct contact between the steel and the surrounding environment, which may contain moisture and other corrosive substances. Epoxy, polyethylene, and zinc are frequently employed coatings for this purpose. Another means of protection involves the utilization of sacrificial anodes. These anodes, typically fabricated from a metal that exhibits greater reactivity than steel, such as zinc or aluminum, are affixed to the steel pipes. Over time, as these anodes corrode, they willingly sacrifice themselves in order to shield the steel. This process, known as cathodic protection, is exceptionally successful in deterring electrolytic corrosion. Aside from coatings and sacrificial anodes, proper insulation and electrical isolation play a pivotal role in preventing electrolytic corrosion of steel pipes. Insulating materials, such as rubber or plastic sleeves, are employed to prevent direct contact between the pipes and other metals or electrolytes. Electrical isolation can be achieved through the use of dielectric unions or insulating flanges, which effectively obstruct the flow of electric current between different sections of the pipeline. Furthermore, regular maintenance and inspection are essential components of protecting steel pipes against electrolytic corrosion. Regular checks to assess coating integrity, anode condition, and potential electrical leakage are crucial in maintaining the ongoing efficacy of the corrosion protection system. In conclusion, a combination of protective coatings, sacrificial anodes, insulation, electrical isolation, and regular maintenance is indispensable in safeguarding steel pipes against electrolytic corrosion. By implementing these measures, the lifespan of steel pipes can be substantially prolonged, thereby ensuring the safety and reliability of various applications, including water distribution, oil and gas transportation, and structural support in buildings and infrastructure.

Q: What's the difference between round and round tubes?: Round steel is a medium solid steel, of course the tube is hollow

Q: How are steel pipes used in the manufacturing of aerospace components?: Steel pipes are used in the manufacturing of aerospace components for various purposes such as supporting structures, fuel systems, hydraulic and pneumatic systems, and exhaust systems. They provide strength, durability, and resistance to extreme temperatures and pressure, making them suitable for critical applications in the aerospace industry.

Q: How do steel pipes handle ground freezing and thawing?: Steel pipes are highly resistant to ground freezing and thawing due to their inherent strength and durability. They are designed to withstand extreme temperature variations without significant damage or deformation. Additionally, steel pipes have low thermal conductivity, meaning they do not transfer heat as easily as other materials, allowing them to maintain their structural integrity even in freezing conditions. Thus, steel pipes are an excellent choice for underground infrastructure and can effectively handle ground freezing and thawing.

Q: Are steel pipes suitable for potable water applications?: Yes, steel pipes are suitable for potable water applications. They are commonly used in water distribution systems due to their durability, strength, and resistance to corrosion. However, proper coating and lining techniques should be employed to ensure the water remains safe for consumption and to prevent any potential leaching of contaminants from the pipe material.

Q: How do you calculate the pipe flow rate coefficient for steel pipes?: To calculate the pipe flow rate coefficient for steel pipes, you need to consider various factors related to the pipe's dimensions, material properties, and the fluid flowing through it. The pipe flow rate coefficient, also known as the discharge coefficient (Cd), is a dimensionless value that represents the efficiency of fluid flow through a pipe. Here are the steps to calculate the pipe flow rate coefficient for steel pipes: 1. Determine the inside diameter (ID) of the steel pipe. This is the measurement of the internal cross-sectional area of the pipe through which the fluid flows. 2. Calculate the pipe's cross-sectional area (A) using the formula: A = π * (ID/2)^2. Here, π is the mathematical constant pi (approximately 3.14). 3. Measure the pressure drop (∆P) across the steel pipe. This is the difference in pressure between the pipe's inlet and outlet. 4. Measure the fluid flow rate (Q) through the pipe. This can be done using flow meters or by measuring the time it takes for a known volume of fluid to pass through the pipe. 5. Calculate the velocity (V) of the fluid flowing through the pipe using the formula: V = Q / A. Here, Q is the fluid flow rate and A is the cross-sectional area of the pipe. 6. Calculate the pipe flow rate coefficient (Cd) using the formula: Cd = Q / (A * √(2 * ∆P / ρ)). Here, ρ is the fluid density. This formula is derived from the Bernoulli's equation and takes into account the pressure drop, fluid flow rate, and fluid density. It is important to note that the pipe flow rate coefficient for steel pipes can vary depending on factors such as pipe roughness, fluid viscosity, and Reynolds number. Therefore, it is advisable to consult relevant engineering standards, such as the Darcy-Weisbach equation or the Hazen-Williams equation, to obtain more accurate values for specific pipe configurations and fluid properties.

Q: What are the advantages of using steel pipes in the manufacturing industry?: Steel pipes offer several advantages in the manufacturing industry. Firstly, steel pipes are highly durable and have a long lifespan, making them ideal for handling heavy loads and withstanding harsh conditions. Secondly, steel pipes are resistant to corrosion, rust, and chemical reactions, ensuring that the material being transported or processed remains uncontaminated. Additionally, steel pipes have high tensile strength and can withstand high pressure, making them suitable for various applications like transporting liquids, gases, and solids. Furthermore, steel pipes are versatile and can be easily customized to meet specific manufacturing requirements. Lastly, steel pipes are cost-effective due to their longevity, low maintenance needs, and recyclability, making them an economical choice for the manufacturing industry.

Q: Can steel pipes be used for conveying oil?: Yes, steel pipes are commonly used for conveying oil due to their durability, strength, and resistance to corrosion. They are able to withstand high pressure and temperature conditions, making them ideal for transporting oil over long distances.

Q: Can steel pipes handle extreme weather conditions?: Yes, steel pipes are known for their durability and ability to withstand extreme weather conditions. They are resistant to corrosion, rust, and can handle high temperatures, making them suitable for various climate conditions.

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