Cold Drawn Carbon Steel Seamless Pipe St35.8 CNBM

Cold Drawn Carbon Steel Seamless Pipe St35.8 CNBM System 1

Cold Drawn Carbon Steel Seamless Pipe St35.8 CNBM System 2

Cold Drawn Carbon Steel Seamless Pipe St35.8 CNBM

Ref Price:

Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 30 pc/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

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: What is the difference between internal and external coating for steel pipes?: Internal coating for steel pipes refers to the application of a protective layer on the inner surface of the pipe. This coating is primarily used to prevent corrosion and to enhance the pipe's resistance to various chemicals present in the fluid being transported. The internal coating is typically applied using techniques such as spraying, brushing, or dipping, and it can be made of various materials such as epoxy, polyurethane, or cement mortar. On the other hand, external coating for steel pipes involves the application of a protective layer on the outer surface of the pipe. The purpose of this coating is to provide protection against environmental factors such as corrosion, abrasion, and impact. External coatings are usually applied using methods like wrapping or coating with materials like polyethylene, fusion-bonded epoxy, or asphalt enamel. In summary, the main difference between internal and external coating for steel pipes lies in their location and purpose. Internal coatings protect the inner surface of the pipe against corrosion and chemical attacks, while external coatings safeguard the outer surface from environmental damage. Both types of coatings are crucial for ensuring the longevity and reliability of steel pipes in various applications.

Q: What are the non-destructive testing methods used for steel pipes?: Some of the non-destructive testing methods used for steel pipes include ultrasonic testing, magnetic particle testing, liquid penetrant testing, radiographic testing, and eddy current testing.

Q: What are the different types of steel pipe coatings for underground gas pipelines?: There are several types of steel pipe coatings used for underground gas pipelines, including fusion bonded epoxy (FBE) coating, three-layer polyethylene (3LPE) coating, and three-layer polypropylene (3LPP) coating. These coatings provide protection against corrosion, abrasion, and other external factors, ensuring the longevity and safety of the gas pipelines.

Q: What are the different methods of joining steel pipes for steam applications?: There are several methods of joining steel pipes for steam applications, including threading, welding, and using mechanical couplings. Threading involves screwing the pipes together using male and female threads, which provides a secure connection. Welding involves fusing the ends of the pipes together using heat, creating a strong and permanent bond. Mechanical couplings use a mechanical device to join the pipes, such as a clamp or compression fitting, which allows for easy disassembly and reassembly if needed. Each method has its advantages and is chosen based on the specific requirements of the steam application.

Q: What are the different sizes of threads available for steel pipes?: The different sizes of threads available for steel pipes vary depending on the specific requirements and standards. Common thread sizes for steel pipes include 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 3-1/2", 4", 5", 6", 8", 10", and 12". However, these sizes may vary based on the specific industry, country, and application.

Q: What are the safety precautions while working with steel pipes?: Some safety precautions while working with steel pipes include wearing appropriate personal protective equipment such as gloves, safety glasses, and steel-toed boots to prevent injuries. It is important to ensure the work area is clear of any obstacles or tripping hazards. Workers should be trained in proper lifting techniques to prevent strain or back injuries. Additionally, it is crucial to follow proper procedures for handling and storing steel pipes to prevent accidents and maintain a safe working environment.

Q: How do you calculate the pipe pressure drop coefficient for steel pipes?: To calculate the pipe pressure drop coefficient for steel pipes, you can use the Darcy-Weisbach equation. This equation relates the pressure drop in a pipe to various factors such as the flow rate, pipe diameter, pipe length, and the properties of the fluid being transported. The pressure drop coefficient, also known as the friction factor or the Darcy-Weisbach friction factor, is denoted by the symbol f. It is a dimensionless parameter that represents the resistance to flow in the pipe. The value of f depends on the flow regime, which can be laminar or turbulent. For laminar flow, which occurs at low flow rates or with viscous fluids, the pressure drop coefficient can be calculated using the Hagen-Poiseuille equation. This equation relates the pressure drop to the fluid viscosity, pipe length, pipe diameter, and flow rate. However, for turbulent flow, which occurs at higher flow rates, the calculation of the pressure drop coefficient is more complex. It depends on the roughness of the pipe wall, which affects the flow resistance. The roughness is typically quantified using the relative roughness, which is the ratio of the pipe wall roughness to the pipe diameter. To calculate the pressure drop coefficient for turbulent flow in steel pipes, you can use empirical correlations or Moody's diagram. Moody's diagram provides a graphical representation of the friction factor as a function of the Reynolds number and the relative roughness. The Reynolds number represents the flow regime and is calculated using the fluid properties, flow rate, and pipe dimensions. By finding the intersection of the Reynolds number and relative roughness on Moody's diagram, you can determine the corresponding pressure drop coefficient. It's important to note that the pressure drop coefficient for steel pipes may vary depending on the specific pipe dimensions, surface roughness, and fluid properties. Therefore, it is recommended to consult relevant standards or engineering references for accurate and up-to-date values of the pressure drop coefficient for steel pipes in your specific application.

Q: What is the difference between API 5L and ASTM A106 steel pipes?: API 5L and ASTM A106 are two commonly used specifications for seamless carbon steel pipe. While both specifications cover similar materials, they have different requirements for chemical composition, manufacturing processes, mechanical properties, and testing. API 5L is a specification created by the American Petroleum Institute (API) for line pipe used in oil and gas transportation. It covers seamless and welded steel pipe suitable for use in conveying gas, water, and oil in the natural gas and petroleum industries. API 5L specifies the minimum requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes, with different chemical composition and mechanical properties. On the other hand, ASTM A106 is a specification developed by the American Society for Testing and Materials (ASTM) for seamless carbon steel pipe for high-temperature service. It covers seamless carbon steel pipe for high-temperature service in NPS 1/8" to NPS 48" inclusive, with nominal (average) wall thickness as given in ANSI B36.10. ASTM A106 provides requirements for chemical composition, manufacturing processes, mechanical properties, and testing. One key difference between API 5L and ASTM A106 is the intended use of the pipe. API 5L is specifically designed for transmission of liquid and gas, while ASTM A106 is used for high-temperature service. The chemical composition and mechanical properties of the steel may also vary between the two specifications, depending on the grade and type of steel being used. In summary, while both API 5L and ASTM A106 are widely used specifications for carbon steel pipe, they have distinct differences in terms of their intended use, chemical composition, manufacturing processes, mechanical properties, and testing requirements. It is important to carefully consider these factors when selecting the appropriate steel pipe for a specific application.

Q: How are steel pipes classified based on their diameter?: Steel pipes are classified based on their diameter by categorizing them into different size ranges, such as small diameter pipes, medium diameter pipes, and large diameter pipes.

Q: What are the different methods of lining steel pipes?: There are several methods of lining steel pipes, each with its own advantages and uses. Some common methods include: 1. Cement Mortar Lining: This involves the application of a layer of cement mortar on the inner surface of the steel pipe. Cement mortar provides excellent corrosion resistance and smoothness to the pipe, reducing friction and improving flow rates. It is commonly used in water supply systems and sewage treatment plants. 2. Polyethylene (PE) Lining: PE lining involves the insertion of a polyethylene tube into the steel pipe. The tube is usually heat fused or mechanically connected to the steel pipe, creating a seamless and corrosion-resistant lining. PE lining is commonly used in gas transmission and distribution pipelines. 3. Epoxy Lining: Epoxy lining involves the application of an epoxy resin to the inner surface of the steel pipe. Epoxy coatings provide excellent resistance to corrosion, abrasion, and chemicals, making them suitable for various applications such as oil and gas pipelines, water treatment, and industrial processes. 4. Trenchless Pipe Lining: This method is used to rehabilitate existing steel pipes without the need for excavation. It involves the insertion of a liner or resin-coated fabric into the existing pipe, which is then inflated and cured to form a new lining. Trenchless pipe lining is commonly used for sewer and water main rehabilitation. 5. Polyurethane (PU) Lining: PU lining involves spraying or pouring a polyurethane coating onto the inner surface of the steel pipe. Polyurethane linings provide excellent resistance to abrasion, impact, and chemicals, making them suitable for applications in mining, slurry pipelines, and wastewater treatment. These are just a few of the many methods available for lining steel pipes. The choice of lining method depends on factors such as the intended application, the environment, and the desired level of corrosion resistance and durability.

Send your message to us

*Email

*TEL

*Quantity

*Unit