Schedule 40 Steel Pipe

Chemical Composition of Schedule 40 Steel Pipe

Schedule 40 steel pipe is a type of steel pipe with a standard thickness and is commonly used in a variety of applications. The chemical composition of Schedule 40 steel pipe can vary depending on the specific grade and type of steel used, but generally, it will contain the following elements:

• Carbon (C): Carbon is the most important element in steel, and it is typically present in amounts ranging from 0.05% to 1.5%. Carbon gives steel its strength and hardness, and also influences its ductility, toughness, and weldability.
• Manganese (Mn): Manganese is often added to steel to improve its strength, toughness, and hardenability. It is typically present in amounts ranging from 0.3% to 1.5%.
• Phosphorus (P): Phosphorus is typically present in small amounts in steel, ranging from 0.04% to 0.12%. It can have both positive and negative effects on steel, depending on the specific application.
• Sulfur (S): Sulfur is another element that is typically present in small amounts in steel, ranging from 0.05% to 0.30%. It can have both positive and negative effects on steel, depending on the specific application.
• Silicon (Si): Silicon is often added to steel to improve its strength, hardness, and ductility. It is typically present in amounts ranging from 0.15% to 0.40%.
• Copper (Cu): Copper is sometimes added to steel to improve its corrosion resistance. It is typically present in small amounts, ranging from 0.20% to 0.40%.
• Chromium (Cr): Chromium is often added to steel to improve its corrosion resistance, hardness, and strength. It is typically present in amounts ranging from 0.08% to 0.40%.
• Nickel (Ni): Nickel is also added to steel to improve its corrosion resistance, strength, and toughness. It is typically present in amounts ranging from 0.25% to 0.45%.

The specific chemical composition of Schedule 40 steel pipe can vary depending on the grade and type of steel used, as well as any additional alloying elements that may be added. It is important to consult the manufacturer's specifications for the specific chemical composition of any given Schedule 40 steel pipe.

Grades of Schedule 40 Steel Pipe

Schedule 40 steel pipe is available in a range of grades, each with its own unique properties and characteristics. The most common grades of Schedule 40 steel pipe are as follows:

• ASTM A53 Grade B: This is the most commonly used grade of Schedule 40 steel pipe, and it is ideal for use in a variety of applications, including plumbing, construction, and industrial uses. It has a minimum yield strength of 35,000 psi and a minimum tensile strength of 60,000 psi.
• ASTM A106 Grade B: This grade of Schedule 40 steel pipe is often used in high-temperature applications, such as steam and gas lines, as well as in refineries and plants. It has a minimum yield strength of 35,000 psi and a minimum tensile strength of 60,000 psi.
• API 5L Grade B: This is another commonly used grade of Schedule 40 steel pipe, particularly in the oil and gas industry. It has a minimum yield strength of 35,000 psi and a minimum tensile strength of 60,000 psi.
• ASTM A333 Grade 6: This grade of Schedule 40 steel pipe is designed for low-temperature service, and it is often used in cryogenic applications, such as liquefied natural gas (LNG) plants. It has a minimum yield strength of 35,000 psi and a minimum tensile strength of 60,000 psi.

Other grades of Schedule 40 steel pipe may be available, depending on the specific application and requirements. It is important to consult the manufacturer's specifications to determine the appropriate grade of Schedule 40 steel pipe for a given application.

Applications of Sch 40 Steel Pipe

Schedule 40 steel pipe is commonly used in a wide range of applications across various industries. Some of the most common applications of Schedule 40 steel pipe include:

• Plumbing and HVAC: Schedule 40 steel pipe is widely used for plumbing and heating, ventilation, and air conditioning (HVAC) systems in residential, commercial, and industrial buildings.
• Water treatment: Schedule 40 steel pipe is used in water treatment plants and distribution systems for conveying clean water and wastewater.
• Oil and gas: Schedule 40 steel pipe is commonly used in the oil and gas industry for transporting crude oil, natural gas, and other petroleum products.
• Chemical processing: Schedule 40 steel pipe is used in chemical processing plants for conveying acids, alkalis, and other corrosive chemicals.
• Power generation: Schedule 40 steel pipe is used in power plants for conveying steam and other fluids in high-temperature and high-pressure applications.
• Construction: Schedule 40 steel pipe is commonly used in construction for structural applications, such as building supports, scaffolding, and fences.
• Agriculture: Schedule 40 steel pipe is used in irrigation systems for conveying water to crops and for supporting agricultural structures such as greenhouses.
• Mining: Schedule 40 steel pipe is used in mining operations for conveying slurries and other materials in corrosive environments.

Overall, Schedule 40 steel pipe is a versatile and durable product that is used in a wide range of applications across many different industries.

Schedule 40 Steel Pipe Prices

The price of Schedule 40 steel pipe can vary depending on a variety of factors, including the grade of steel, the diameter of the pipe, the length of the pipe, and the location of the supplier.

SCH 40 Nominal pipe size (NPS)

Notes:

• For NPS ≥ 4, the related DN = 25 multiplied by the NPS number.
• From NPS 12 and above the wall thickness between SCH 40 and STD are different, from NPS 10 and above the wall thickness between schedule 80 and XS are different.

Schedule 40 Carbon Steel Pipe Pressure Rating

• 1 in (inch) = 25.4 mm
• 1 psi (lb/in2) = 6,894.8 Pa (N/m2) = 6.895x10-2 bar

Schedule 40 Pipe Dimensions and Wall Thickness

Manufacturer and supplier of Schedule 40 steel pipes in India, check the available grades at a glance: