Customization:	Available
Application:	Chemical Processing, Construction, Oil and Gas, Water Supply, Building Material
Pipe Diameter:	1/8"-5"

Element	Typical Content Range (%)	Significance
Carbon (C)	0.25 - 0.40	Carbon is a key element in steel. Higher carbon content generally increases the strength and hardness of the steel but may reduce its ductility and weldability. In ASTM A252 pipes, this carbon range provides a balance suitable for various structural and fluid - carrying applications.
Manganese (Mn)	0.60 - 1.00	Manganese helps in deoxidizing the steel and also contributes to strengthening the steel. It improves the hardenability and wear resistance of the steel, making the pipes more durable.
Phosphorus (P)	≤ 0.04	Phosphorus is a harmful element in steel as it can cause embrittlement, especially at low temperatures. Limiting its content to 0.04% or less helps maintain the toughness of the pipes.
Sulfur (S)	≤ 0.05	Sulfur forms inclusions in steel, which can reduce the ductility and toughness. Keeping sulfur content low is crucial for ensuring the quality of the welded pipes.
Silicon (Si)	0.15 - 0.30	Silicon is used as a deoxidizer and also contributes to the strength of the steel. It helps in improving the resistance to oxidation and can enhance the overall performance of the pipes.

Property	Value/Characteristics	Impact on Application
Density (g/cm³)	Approximately 7.85	The density of ASTM A252 carbon steel welded pipes affects their weight, which is important in applications where weight - carrying capacity and transportation costs are considerations. For example, in construction projects, the weight of the pipes needs to be accounted for in structural design.
Thermal Conductivity (W/(m·K))	Around 45 - 50	Good thermal conductivity makes these pipes suitable for applications involving heat transfer, such as in some heating systems or industrial processes where heat needs to be transferred through the pipes.
Electrical Conductivity	Fair electrical conductivity	Although not as good as some metals like copper, the electrical conductivity of these pipes can be relevant in applications where electrical grounding or shielding is required.

Property	Minimum Value (Typical)	Significance
Tensile Strength (MPa)	Grade 1: 310 Grade 2: 350 Grade 3: 415	Tensile strength determines the maximum stress the pipes can withstand before breaking. Different grades are used for different applications. For example, Grade 1 may be suitable for general - purpose piping where lower stress is expected, while Grade 3 is used in more demanding applications with higher pressure or load requirements.
Yield Strength (MPa)	Grade 1: 180 Grade 2: 210 Grade 3: 240	Yield strength is the stress at which the steel begins to deform plastically. Knowing this value is crucial for designing piping systems to ensure they do not experience permanent deformation under normal operating conditions.
Elongation (%)	Grade 1: 25 Grade 2: 23 Grade 3: 20	Elongation measures the ductility of the steel. Higher elongation values in Grade 1 indicate better formability, which may be important for applications where the pipes need to be bent or shaped during installation.
Hardness	Varies depending on grade and heat treatment	Hardness affects the wear resistance and ability of the pipes to withstand external forces. Higher - grade pipes with more heat treatment may have higher hardness, making them more suitable for abrasive environments.

Corrosion Environment	Resistance Level	Protection Measures
Atmospheric Corrosion	Moderate	In atmospheric environments, ASTM A252 carbon steel welded pipes are prone to rusting over time. Protective coatings such as paint, galvanization, or epoxy coatings can be applied to prevent corrosion.
Water Corrosion	Depends on water quality	In clean water, the pipes may have a relatively long lifespan. However, in water with high levels of dissolved oxygen, salts, or other corrosive substances, corrosion can occur more rapidly. Cathodic protection or the use of corrosion - inhibiting additives in the water can help mitigate this.
Chemical Corrosion	Limited	Against most strong chemicals, these carbon steel pipes have limited resistance. They are not suitable for transporting highly corrosive chemicals without proper lining or protection. In some cases, a corrosion - resistant alloy lining can be used to extend the service life in chemical - handling applications.

Application Area	Specific Applications
Construction Industry	- Used in building structural frameworks, such as in scaffolding systems where the pipes need to have sufficient strength to support loads. - In plumbing systems for water supply and drainage, due to their relatively low cost and good mechanical properties.
Oil and Gas Industry	- For the transportation of oil and gas over short to medium distances in some on - shore applications. However, they often require additional corrosion protection measures. - In oil and gas processing plants, they can be used in non - corrosive process fluid lines.
Mechanical Engineering	- As components in machinery for conveying fluids, such as in hydraulic systems or in some industrial cooling systems. - In agricultural machinery for transporting water or other fluids.
Power Generation	- In power plants, they can be used for the transportation of non - corrosive cooling water or in some low - pressure steam lines.

Comparison Aspect	ASTM A252 Carbon Steel Welded Pipes	Stainless Steel Pipes	Plastic Pipes
Cost	Relatively low - cost, especially for large - scale applications.	Higher cost due to the addition of alloying elements like chromium and nickel.	Can be cost - effective for some applications, but may vary depending on the type of plastic.
Strength	Good strength for a wide range of applications, with different grades available.	Generally have high strength and better corrosion resistance, but may be over - specified for some low - stress applications.	Lower strength compared to steel pipes, suitable for low - pressure applications.
Corrosion Resistance	Moderate, requires protection in many environments.	Excellent corrosion resistance, suitable for highly corrosive environments without additional protection.	Good corrosion resistance in most environments, depending on the type of plastic.
Installation	Can be welded or joined using various methods, but welding may require skilled labor.	Welding of stainless steel pipes also requires specialized techniques.	Easier to install, often using adhesive or mechanical joining methods.

ASTM A252 Carbon Steel Welded Pipes Seamless Steel Tubes

Basic Info.