1020 Carbon Seamless Steel Pipe A135 CNBM

1020 Carbon Seamless Steel Pipe A135 CNBM System 1

1020 Carbon Seamless Steel Pipe A135 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 - 40 mm	Section Shape:	Round	Outer Diameter:	21.3 - 609.6 mm
		Secondary Or Not:	Non-secondary	Application:	Fluid Pipe
Technique:	Hot Rolled	Certification:	BV	Surface Treatment:	Other
Special Pipe:	Thick Wall Pipe	Alloy Or Not:	Non-alloy	Standard:	API 5L,API

Packaging & Delivery

Packaging Detail:	Standard seaworthy export packing with steel strip or with plastic clothe, or as requests from the coustomer.
Delivery Detail:	7-25 days after receiveved the deposit

Specifications

Seamless Steel Pipe
Standard:API ASTM DIN
Size:OD:21.3mm-609.6mm
WT:1mm-40mm

Mechanical properties

standard	grade	Tensile strength(MPA)	yield strength(MPA)
ASTM A106	A	≥330	≥205
	B	≥415	≥240
	C	≥485	≥275

Chemical ingredients

standard	grade	Chemical ingredients
standard	grade	C	Si	Mn	P	S	Cr	Mo	Cu	Ni	V
ASTM A106	A	≤0.25	≥0.10	0.27~0.93	≤0.035	≤0.035	≤0.40	≤0.15	≤0.40	≤0.40	≤0.08
	B	≤0.30	≥0.10	0.29~1.06	≤0.035	≤0.035	≤0.40	≤0.15	≤0.40	≤0.40	≤0.08
	C	≤0.35	≥0.10	0.29~1.06	≤0.35	≤0.35	≤0.40	≤0.15	≤0.40	≤0.40	≤0.08

Company Name	Tianjin Xinlianxin
Business Type	Manufacturer and Exporter
Product	steel pipe
Main Products and Standards
product name	Specification Range	steel Grade	Executive Standard
Structure Pipe	20mm-820mm 1/2"-32"	10,20,35,45,16Mn,A53AB	GB/T8162-1999,ASTM A53-98,ASTM500-98,ASTM 500-98,JISG3441-1998,JISG3444-1994
Pipe for Liquid Transportation	20mm-820mm 1/2"-33"	10,20,Q345(16Mn),A53AB,A192,SGP	GB/T8163-1999,ASTM A53-98,ASTM A192,JISG3452-1997
Boiler Pipe	20mm-820mm 1/2"-35"	20,20G,A179,A106B,A192,ST37.0,ST44.0,ST35.8,ST45.8,Gr320	GB3087-1999,GB5310-1995,ASTM A106,ASTM A179,ASTM A192,DIN-1629-1984,DIN17175,BS3059.1-1987

1	Product		seamless steel pipe
2	Standard	U.S.A.	ASTM A53/A106/A178/A179/A192/A210/A213/ A333/A335/A283/A135/A214/A315/A500/A501/A519/A161/A334 API 5L/5CT
		Japan	JIS G3452/G3454/G3456/G3457/G3458/G3460/3461/3462/3464
		German	DIN 1626/17175/1629-4/2448/2391/17200 SEW680
		Britain	BS 1387/1600/1717/1640/3601/3602/3059/1775
		Russia	GOST 8732/8731/3183
		China	GB/T8162/T8163 GB5310/6579/9948
3	Material Grade	U.S.A.	Gr. B/Gr.A/A179/A192/A-1/T11/T12/T22/P1/FP1/T5/4140/4130
		Japan	STPG38,STB30,STS38,STB33,STB42,STS49, STBA23,STPA25,STPA23,STBA20
		German	ST33,ST37,ST35,ST35.8,ST45,ST52,15Mo3, 13CrMo44, 1.0309, 1.0305, 1.0405
		Britain	Low, Medium, high
		Russia	10, 20, 35, 45, 20X
		China	10#, 20#, 16Mn, 20G, 15MoG, 15CrMo, 30CrMo, 42Crmo, 27SiMn, 20CrMo
4	Out Diameter		21.3mm-609.6mm
5	Wall Thickness		2.31mm-40mm
6	Length		As per customers' requirements
7	Protection		Plastic caps/ Wooden case
8	Surface		Black painting/varnished surface,anti-corrosion oil, galvanized or as per required by customer

Q: How do you prevent steel pipes from rusting?: Various measures can be taken to prevent the rusting of steel pipes. One effective method is the application of a protective coating on the surface of the pipes. Different types of coatings, such as paint, epoxy, or zinc, can be used for this purpose. These coatings act as a barrier between the steel and the corrosive environment, thereby preventing direct contact between moisture, oxygen, and the metal, which can lead to rust formation. Another approach involves the use of corrosion inhibitors. These substances are added to the water or fluid flowing through the pipes, creating a protective film on the surface of the steel. This film acts as a shield, inhibiting the corrosion process and preventing the formation of rust. Regular maintenance plays a crucial role in preventing rust on steel pipes. It is essential to inspect the pipes regularly for any signs of damage or corrosion and promptly repair or replace any compromised areas. Additionally, keeping the pipes clean and dry by removing accumulated dirt or moisture helps prevent the formation of rust. In some cases, using stainless steel pipes instead of regular steel can be beneficial. Stainless steel contains chromium, which forms a passive oxide layer on the metal's surface. This layer acts as a natural barrier against corrosion, making stainless steel pipes highly resistant to rust. Finally, controlling the installation environment of the pipes can also help prevent rust. This can be achieved by maintaining proper ventilation, controlling humidity levels, and avoiding exposure to harsh chemicals or corrosive substances. By implementing these preventive measures, the lifespan and integrity of steel pipes can be significantly extended, while minimizing the risk of rust formation.

Q: Are steel pipes suitable for underground irrigation pumping?: Yes, steel pipes are suitable for underground irrigation pumping. Steel pipes are known for their durability and strength, making them an ideal choice for underground applications. They can withstand high levels of pressure, resist corrosion, and are less likely to be affected by external factors such as soil movement or temperature changes. Additionally, steel pipes have a longer lifespan compared to other materials, reducing the need for frequent replacements. However, it is important to ensure that the steel pipes are properly coated or lined to prevent corrosion and to regularly inspect and maintain them to ensure their effectiveness and longevity.

Q: What is the electrical conductivity of steel pipes?: The electrical conductivity of steel pipes is relatively low, as steel is a poor conductor of electricity.

Q: How do you determine the wall thickness of a steel pipe?: The wall thickness of a steel pipe can be determined by measuring the outer diameter (OD) and the inner diameter (ID) of the pipe, and then subtracting the ID from the OD.

Q: How do you calculate the flow rate through a steel pipe?: To calculate the flow rate through a steel pipe, you need to consider several factors. The most important ones are the diameter of the pipe, the pressure difference across the pipe, and the properties of the fluid flowing through it. Firstly, measure the inside diameter of the steel pipe accurately. This measurement is essential as it determines the cross-sectional area through which the fluid flows. The units for the diameter should be consistent with the units used for other measurements. Next, determine the pressure difference across the pipe. This can be done by measuring the pressure at two points along the pipe, typically at the inlet and outlet. The pressure measurements should be taken at the same height to avoid any discrepancies. The pressure difference is usually given in units of pressure (such as psi, kPa, or bar). Once you have the diameter and pressure difference, you can use the Bernoulli equation or the Darcy-Weisbach equation to calculate the flow rate. The Bernoulli equation relates the pressure difference to the velocity of the fluid. However, this equation assumes ideal conditions, neglecting factors such as friction losses, viscosity, and turbulence. The Darcy-Weisbach equation is more accurate and considers these factors. To use the Darcy-Weisbach equation, you need to know the properties of the fluid flowing through the pipe, such as its density and viscosity. These properties can be determined either through experimentation or by referring to literature values. Once you have all the necessary information, you can use the Darcy-Weisbach equation: Q = (π/4) * D^2 * √[(2 * ΔP) / (ρ * f * L)] Where: Q is the flow rate (in cubic meters per second or any other consistent units) D is the diameter of the pipe (in meters or any other consistent units) ΔP is the pressure difference across the pipe (in Pascals or any other consistent units) ρ is the density of the fluid flowing through the pipe (in kilograms per cubic meter or any other consistent units) f is the friction factor, which depends on the Reynolds number and the roughness of the pipe. L is the length of the pipe (in meters or any other consistent units) By plugging in the values for all the variables, you can calculate the flow rate through the steel pipe accurately.

Q: What are the different types of coatings used for steel pipes?: There are several types of coatings used for steel pipes, including epoxy coatings, polyethylene coatings, fusion bonded epoxy coatings, and zinc coatings. Each type of coating offers different benefits and is used for specific applications to protect the steel pipes from corrosion and improve their durability.

Q: How are steel pipes used in offshore drilling platforms?: Steel pipes are used in offshore drilling platforms for various purposes such as transporting drilling fluids, casing and cementing operations, as well as providing support and stability to the platform structure. These pipes are crucial in facilitating the extraction of oil and gas from beneath the seabed by enabling the safe and efficient transfer of fluids and materials during drilling operations.

Q: Can steel pipes be used for underground heat exchange systems?: Yes, steel pipes can be used for underground heat exchange systems. Steel is a durable and strong material that can withstand the pressure and environmental conditions typically found underground. It is resistant to corrosion and can handle high temperatures, making it suitable for transporting heat efficiently. Additionally, steel pipes are readily available and cost-effective compared to alternative materials, making them a popular choice for underground heat exchange systems. However, it is important to ensure proper insulation and protection of the steel pipes to prevent heat loss and damage from external factors such as moisture or soil movement.

Q: Can steel pipes be used for bridge piling?: Yes, steel pipes can be used for bridge piling. Steel pipes provide several advantages for bridge piling, such as high strength, durability, and resistance to corrosion. They can be driven deep into the ground to provide a stable foundation for the bridge structure, making them a suitable choice for bridge piling applications.

Q: How are steel pipes used in underground drainage systems?: Steel pipes are commonly used in underground drainage systems due to their durability and strength. They are used to transport wastewater, stormwater, and other liquids away from buildings and infrastructure to a designated discharge point. The steel pipes provide a reliable and long-lasting solution, ensuring the efficient flow of water and preventing any potential leaks or damage to the surrounding environment.

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