Carbon Steel Pipe

Octal Steel offers a comprehensive carbon steel pipe portfolio adhering to major international standards. This includes API 5L (Grades B, X42 to X70, and other high-strength grades) for oil and gas transmission, ASTM A106 Grade B for high-temperature service, ASTM A53 Grade B for general piping systems, ASTM A252 Grade 3 for piling applications, and ASTM A333 Grade 6 for low-temperature environments. Our product range encompasses seamless, and welded (ERW, EFW, LSAW, SSAW) steel pipes, engineered to meet the rigorous demands of various industrial applications, from mining and construction to water, oil, and gas transmission.

Carbon steel pipes are widely used in various applications due to their strength, durability, and cost-effectiveness. They are made primarily from carbon and iron, with varying carbon content that affects their properties.

Octal offers various of carbon steel pipes including seamless, welded (ERW EFW, LSAW, SSAW) steel pipes for the mining industries：

Differences Between Seamless Pipe and Welded Pipe
Differences between ERW, EFW pipe.
LSAW and SSAW pipe

Carbon steel pipe’s status as a cornerstone material across industries stems from the fundamental fact that the microstructure formed by carbon and iron imparts a superior balance of mechanical properties and cost-effectiveness. Carbon steel is not a single material but a spectrum ranging from low to high carbon content, with its properties highly dependent on both carbon percentage and manufacturing/heat treatment processes. Increasing carbon content significantly enhances strength and hardness, typically at the expense of some ductility and toughness. Consequently, for specific service conditions (e.g., pressure containment, structural support, low-temperature environments), precise chemical composition design coupled with processes like Thermo-Mechanical Controlled Processing (TMCP), normalizing, or quenching and tempering can tailor the microstructure (e.g., ferrite, pearlite, bainite) to achieve the optimal balance of strength, toughness, and weldability.

Carbon Steel Pipe Price

Carbon steel pipe price at 600 to 1200 USD per Metric Ton FOB China, depending on different grade and dimension.

Carbon Steel Pipe Standards and Grades (Seamless and Welded)

ASTM A106 Gr. B in Seamless (Differences between ASTM A106 and A53 pipe)
ASTM A53 Gr. A, B in Seamless, Welded ERW, and Zinc coated, hot-dipped galvanized steel pipe
ASTM A179 Gr. C in Seamless (For seamless cold drawn low carbon steel heat-exchanger and condenser tubes)
ASTM A192 (For seamless carbon steel boiler tubes for high-pressure service)
ASTM A252 (For welded and seamless steel pipe piles)
ASTM A333 GR. 1, 2, 3, 4, 5, 6 (For seamless and welded steel pipe for low-temperature service and other applications with required notch toughness)
ASTM A134 and ASTM A135 (For electric resistance welded ERW steel pipes)
API 5L Pipe, ISO 3183 / API 5L Gr. A, B, X42, X46, X52, X56, X60, X65, X70, X80 in seamless and welded (LSAW, SSAW, ERW) steel pipe, for petroleum and natural gas industries, steel pipe for pipeline transportation systems.
DIN 2440 seamless and welded steel pipes applies to medium-weight tubes suitable for screwing. (DIN2444 Zinc coated steel tubes, for hot galvanizing)
CSZ Z245 Seamless and ERW welded pipe (low-frequency electric welded pipe excluded), SAW steel pipe that intended for oil and gas pipeline systems.
NBR 8261 Cold-Drawn, Cold-form, welded steel pipe, in circular cross-section, square or rectangular, applied to structural purposes.
AWWA C-200 for steel water pipe

More standards material available in case special requirement

Carbon Steel Pipe for Mineral Slurry

Mineral and slurry pipes are specifically designed for use in the mining industry. A slurry pipeline is intended for the transportation of ores, such as iron and coal, as well as mining waste, commonly referred to as tailings. These steel pipes are typically installed over long distances. The materials being transported are mixed with water to form a slurry, which pumps are then used to move to the final destination, where the water is subsequently filtered out.

Due to the presence of various materials, some of which have abrasive properties, the pipes are often coated with protective layers such as 3PE (three-layer polyethylene) or FBE (fusion-bonded epoxy) to prevent corrosion.

Both seamless and welded carbon steel pipes can be utilized for slurry transmission, offering a wide range of materials and standards to meet specific operational requirements.

What is most common used material for the mineral and slurry pipe. ASTM A106 pipe and ASTM A53 pipe.

ASTM A106 pipe

ASTM 106 pipe refers to the carbon steel pipe manufactured in hot rolled or cold drawn (rolled) seamless. ASTM A106 standard specification covers the seamless pipe that applied in high temperature services. As a result, it could used to carry the fluids (water, oil and gas, slurry), it is an important material for mining industries.

ASTM A53 pipe

ASTM A53 pipe covers welded and seamless steel pipe, in carbon black material and some cases in hot dipped galvanized (zinc coated). This is a basic pipe material, and it’s performances and prices also similar to ASTM A106B, or API 5L B. (We saw some pipes that they these three standards marked, call “Three standards steel pipe” ). So we say A53 pipe also is widely used in mining and slurry services.

Coating types for carbon steel pipe against corrosion environments

In order to increase the resistance of steel pipe in corrosion environment, Octal offers different types of coating systems to protect against from the corrosive and abrasion break.
3PE coated, 3 layer Polyethylene coating
FBE coated, Fusion bonded epoxy coating
(Check here to find out differences between 3PE and FBE.)
Zinc coated, Hot dipped galvanized steel pipe, cold electric galvanized
Solid, CRA, Clad and lined pipes, Cladding and lining alloy steel material on the carbon steel material

Our supply range for black carbon steel pipe

Outer Diameter: 1/8” to 60” (10.3mm to 1500mm)
Thickness: SCH10 to SCH160 (2.11mm to50.01mm, 0.083” to 2”)
Length: SRL, DRL, 20FT, 40FT, from 5 meter to 18meters, or customized.
Ends process: Plain Ends, Beveled Ends,Threaded Ends
Outside Coating: Blacking painting, Varnished, FBE, 3pp, 3PE/3LPE, Polyethylene layers coating

Why Choose Octal Steel？

Achieving the optimal balance between reliability and economy in industrial infrastructure is the perpetual goal of carbon steel pipe application. Octal Steel ensures that every pipe meets dimensional accuracy and mechanical properties and delivers durable and stable performance in real-world conditions through a deep understanding of materials science and strict control over manufacturing processes.

We are more than a pipe supplier; we are your technical project partner. To obtain the optimal product selection advice and a highly competitive quote tailored to your specific application conditions (e.g., pressure rating, ambient temperature, corrosive media), please contact our technical sales team today.