Schedule 40 Seamless Carbon Steel Pipe API L80 CNBM

Schedule 40 Seamless Carbon Steel Pipe API L80 CNBM System 1

Schedule 40 Seamless Carbon Steel Pipe API L80 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:	1.73 - 59.54 mm	Section Shape:	Round	Outer Diameter:	10.3 - 914.4 mm
		Secondary Or Not:	Non-secondary	Application:	Fluid Pipe
Technique:	Hot Rolled	Certification:	API	Surface Treatment:	Galvanized,vanish covering, black painting, galvenized ect.
Special Pipe:	API Pipe	Alloy Or Not:	Non-alloy	Length:	5-12m as per customer's requirements
SCH:	SCH10~160, STD, XS & XXS	Payment Terms:	L/C T/T	Supply Ability:	5000 Ton/Tons per Week
Product:	pipe prices	Grade:	10#,20#,45#,A106(B,C),A53(A,B),12Cr1MoV,12Cr1MoVG,12Cr2Mo,13CrMo44,13CrMo45,15CrMo,15CrMoG,St52,St52.4,10#-45#,A53-A369,Cr-Mo alloy,ST35-ST52	Standard:	API 5CT,API 5L,ASTM A106-2006,ASTM A53-2007,DIN 17175,GB 3087-1999,GB 5130,GB 6479-2000,GB 9948-2006,GB/T 17396-1998,GB/T 5312-1999,GB/T 8162-1999,GB/T 8163-1999,API,ASTM,DIN,GB

Packaging & Delivery

Packaging Detail:	By bundles, seaworthy wooden cases, steel framed cases, and simple packaging or according to the demand of the customers.
Delivery Detail:	within 5-15 days

Specifications

1.pipe prices
2.Supply Ability:5000 Tons per Week
3.Payment Terms:L/C T/T

High quality Carbon steel pipe, Best pipe prices

1) Application: Overheat pipe for low and mediumpressure boiler,boiling water pipe, locomotive smoke pipe(big and small),Carry gas ,water or oil in the industries of petroleum and natural gas etc
2) Materials: 10#, 20#, 45#, 15CrMo, 12Cr1MoV, 13CrMo44, 12Cr2Mo, 13CrMo45, 12Cr1MoVG, 15CrMoG, API J55, API K55, API N80, API L80, API P110

3)Pipe according to standard: GB 3087-1999, GB/T 8163-1999, GB/T 8162-1999, GB 9948-2006, GB/T 17396-1998, GB/T 5312-1999, GB 6479-2000, GB 5130, DIN 17175, API 5CT, API 5L .

4)Packing: By bundles, seaworthy wooden cases, steel framed cases, and simple packaging or according to the demand of the customers.

Technical Parameters of Seamless Steel Pipe

schedule 40 seamless carbon steel pipe

Q: Can steel pipes be coated for additional protection?: Yes, steel pipes can be coated for additional protection. Coatings such as epoxy, polyethylene, or zinc can be applied to steel pipes to enhance their durability, corrosion resistance, and longevity.

Q: What is the fatigue strength of steel pipes?: The ability of steel pipes to withstand repeated cyclic loading without failing is referred to as their fatigue strength. This characteristic is of utmost importance for pipes that experience dynamic or fluctuating loads, such as those used in the oil and gas industry, transportation infrastructure, or industrial applications. Several factors can affect the fatigue strength of steel pipes, including the grade of steel, dimensions of the pipe, manufacturing process, surface conditions, and environmental factors. Generally, steel pipes with higher tensile strength and toughness exhibit better resistance to fatigue. Fatigue strength is typically determined by subjecting the pipes to cyclic loading until failure occurs, through a process known as fatigue testing. The results of these tests are then used to establish a fatigue curve or S-N curve, which illustrates the relationship between the applied stress amplitude and the number of cycles required for failure. To quantify the fatigue strength, it is common to express it as the stress amplitude required to cause failure after a specific number of cycles, such as the stress amplitude at 10 million cycles (S-N10^7). However, it is important to consider other factors such as mean stress, surface finish, and loading frequency, which can also influence fatigue strength and may require consideration in specific applications. Ultimately, the fatigue strength of steel pipes is a crucial factor in engineering design and maintenance, as it ensures the long-term integrity and reliability of the pipes under cyclic loading conditions.

Q: What is ND steel pipe?: ND steel also has the ability to resist chloride ion corrosion. ND steel pipe, the main reference indicators (70 degrees Celsius, 50%H2SO4 solution immersion 24 hours), and carbon steel, Japan imported similar steel, stainless steel corrosion resistance compared to higher than these steel grades. Products by domestic refineries and manufacturing units after the use of widely acclaimed, and achieved good results.

Q: How do steel pipes handle high-velocity flow?: Steel pipes are designed to handle high-velocity flow efficiently due to their inherent strength and durability. The smooth interior surface of steel pipes minimizes friction, allowing for smooth flow and reducing energy loss. Additionally, the sturdy construction of steel pipes enables them to withstand the pressures and forces exerted by high-velocity flow without deformation or failure.

Q: How are steel pipes used in the electronics industry?: Steel pipes are commonly used in the electronics industry for the transportation of various gases and liquids, such as coolant and process fluids, within electronic systems. They are also utilized for the construction of supporting structures and frameworks in electronic equipment and facilities.

Q: How do you calculate the thermal expansion of steel pipes?: In order to determine the thermal expansion of steel pipes, it is necessary to utilize the coefficient of thermal expansion (CTE) specific to steel. The CTE represents the extent to which a material expands or contracts in response to temperature fluctuations. Typically, the average value of CTE for steel is around 12 x 10^-6 per degree Celsius (12 μm/m°C). To calculate the thermal expansion of a steel pipe, one must possess knowledge of the pipe's initial length (L0), the temperature change (ΔT), and the CTE for steel. The formula for calculating thermal expansion is as follows: ΔL = L0 * CTE * ΔT In this equation: ΔL denotes the alteration in length of the steel pipe L0 represents the initial length of the steel pipe CTE signifies the coefficient of thermal expansion for steel ΔT indicates the change in temperature For instance, suppose there is a steel pipe with an initial length of 2 meters (L0), and the temperature rises by 50 degrees Celsius (ΔT). The CTE for steel is 12 x 10^-6 per degree Celsius. ΔL = 2m * 12 x 10^-6/°C * 50°C ΔL = 0.00024m/m°C * 50°C ΔL = 0.012m Thus, when the temperature increases by 50 degrees Celsius, the steel pipe will expand by 0.012 meters or 12 millimeters. It is important to bear in mind that this calculation assumes linear expansion, which is applicable for minor temperature variations. However, for larger temperature differences or more intricate pipe systems, a more comprehensive analysis may be necessary to consider factors such as the material properties, geometry, and thermal boundary conditions of the pipes.

Q: What is the difference between schedule 10 and schedule 40 steel pipes?: Schedule 10 and schedule 40 steel pipes are both commonly used in various industries for different purposes. The main difference lies in their wall thickness and pressure ratings. Schedule 10 steel pipes have a thinner wall compared to schedule 40 pipes. This means that schedule 10 pipes have a smaller internal diameter and can handle less pressure compared to schedule 40 pipes. The wall thickness of schedule 10 pipes is typically 0.109 inches, while schedule 40 pipes have a wall thickness of 0.154 inches. Due to their thinner walls, schedule 10 pipes are primarily used for low-pressure applications such as domestic water supply, drainage systems, and general plumbing. They are also commonly used for lightweight structures or where weight is a concern. On the other hand, schedule 40 pipes are designed to handle higher pressure and are often used in industrial applications, including oil and gas pipelines, chemical processing plants, and high-pressure fluid systems. The thicker walls of schedule 40 pipes provide them with increased strength and durability to withstand higher pressure and stress. In summary, the main difference between schedule 10 and schedule 40 steel pipes is their wall thickness and pressure ratings. Schedule 10 pipes have a thinner wall and are suitable for low-pressure applications, while schedule 40 pipes have a thicker wall and can handle higher pressure. It is important to choose the appropriate schedule based on the specific requirements and pressure limitations of the intended application.

Q: Can steel pipes be used in the automotive industry?: Yes, steel pipes can be used in the automotive industry. Steel pipes are commonly used in the automotive industry for various applications such as exhaust systems, fuel lines, and structural components due to their high strength, durability, and resistance to corrosion.

Q: How do you calculate the pipe thermal expansion coefficient for steel pipes?: The pipe thermal expansion coefficient for steel pipes can be calculated using the formula: α = (L2 - L1) / (L1 * (T2 - T1)) Where: α is the pipe thermal expansion coefficient L1 is the initial length of the pipe L2 is the final length of the pipe T1 is the initial temperature of the pipe T2 is the final temperature of the pipe. This formula takes into account the change in length and the change in temperature to determine the coefficient of thermal expansion for steel pipes.

Q: How do steel pipes perform in seismic zones?: Steel pipes perform well in seismic zones due to their inherent strength and ductility. Their high tensile strength allows them to withstand the horizontal forces exerted during an earthquake, while their ductility allows them to deform and absorb the energy generated by seismic activity. Additionally, steel pipes can be designed and installed with proper reinforcement and bracing systems to further enhance their performance in seismic zones.

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