Your Professional Carbon Steel Pipe Supplier
Henan Shuangzhong Intelligent Technology Co., Ltd., an expert in precision manufacturing and pipeline system solutions, was founded in 1999. We are a professional manufacturer focusing on precision machining customization, pipeline equipment/pipe fittings customization, and carbon steel pipe manufacturing and processing.
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![ASTM A106 Gr.B Seamless Carbon Steel Pipe]()
ASTM A106 Gr.B Seamless Carbon Steel PipeAvailable Pipe EndsPlain EndsBeveled EndsThreaded Ends -
![ASTM A333 Grade 6 Seamless Steel Pipe]()
ASTM A333 Grade 6 Seamless Steel PipeImpact Test:Required at -45°COD:1/2-48Thickness:SCH5-SCHXXSLength:0-12M, CustomizedProcess: Hot/Cold Rolled,Hot work,Cold drawn -
![API 5L GR.B Seamless Steel Pipe | PSL1 PSL2 Manufacturer]()
API 5L GR.B Seamless Steel Pipe | PSL1 PSL2 ManufacturerAPI 5L Grade B steel pipe is a standard carbon steel line pipe widely used for oil, gas, water transmission and pipeline projects.Available in seamless (SMLS) and ERW welded types, complying with API -
![ASTM A53 Grade B Carbon Steel Pipe]()
ASTM A53 Grade B Carbon Steel PipeType: Seamless, WeldedOD: 1/2-48Thickness: SCH5-SCHXXSLength: 0-12M, CustomizedProcess: Hot/Cold Rolled,Hot work,Cold drawn -
![ASTM A519 Mechanical Tube]()
ASTM A519 Mechanical TubeStandard ASTM A519 / ASTM A519MType Seamless Carbon & Alloy Steel Mechanical TubingManufacturing Method Hot Finished / Cold Drawn SeamlessOD -
![ASTM A106 Gr.B SCH40 Seamless Carbon Steel Pipe]()
ASTM A106 Gr.B SCH40 Seamless Carbon Steel PipeDetailsType Seamless Carbon Steel PipeOD 1/2-48Thickness SCH5-XXSLength 0-12M,CustomizedPROCESS Hot rolling, Cold Drawn -
![Api Spec 5l Spiral Steel Pipe]()
Api Spec 5l Spiral Steel PipeName: Api Spec 5l Spiral Steel PipeCaliber ：219-2220mmThickness:3-22mmLength:1-30m Or As Per Customer's RequirementsSurface：Can Be Used As Anti-Corrosion CoatingMaterial -
![Hot-Rolled Square Tubing]()
Hot-Rolled Square TubingName:Hot-Rolled Square TubingSize：20X20-1000X1000mmStandard：ASTM, JIS, EN, DIN, GBType：Resistance welded carbon steel pipe/seamless steel pipeSurface：Galvanizing/painting/oiling or as per customer -
![American Spiral Steel Pipe]()
American Spiral Steel PipeName:American Spiral Steel PipeCaliber ：NPS8-NPS100Thickness:SCH10-SCH160Length:1-30m Or As Per Customer's RequirementsSurface：Can Be Used As Anti-Corrosion CoatingMaterial :：ASTM A36，A283 Grade -
![Carbon Steel A106 ASTM A53 API 5L GR.B Seamless Pipe]()
Carbon Steel A106 ASTM A53 API 5L GR.B Seamless PipeName：Carbon Steel A106 ASTM A53 API 5L GR.B Seamless PipeType: Seamless，RoundOD: 1/2-48Thickness: SCH5-SCHXXSLength: 0-12M, CustomizedProcess: Hot/Cold Rolled, Hot work, Cold drawnApplication：Oil and -
![Large Diameter Straight Seam Welded Pipe]()
Large Diameter Straight Seam Welded PipeName: Large Diameter Steel Plate CoilsCaliber ：529-2020mmThickness:5-30mmLength:Customized Length According To Customer RequirementsSurface：Can Be Used As Anti-Corrosion Coating -
![Ductile Iron Pipe]()
Ductile Iron PipeName: Ductile iron tubeStandard：GB/T 13295，GB/T 26081，ISO2531，T/CFA 02010202.4Caliber :DN80-DN2600Thickness:K7/K8/K9/C40/C30/C25Yield strength (≥ MPa)：300 MPaHardness：Tensile strength：>
Why Choose us
A Global Supply Chain
Our products have been successfully exported to numerous countries and regions worldwide, including the United States, Canada, Germany, India, Malaysia, Pakistan, the United Arab Emirates, Egypt, and the Middle East. These international market achievements have earned our products the trust and recognition of overseas customers.
Quality Control
The company holds ISO 9001:2015 and API certifications, demonstrating our commitment to quality management and industry standards.
OEM Service
Whether you require complex non-standard mechanical components, high-specification piping system components, or customized hydraulic hose assemblies, we offer a comprehensive range of solutions to meet your specific needs, allowing you to streamline procurement and save both time and effort.
Parameter
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Category |
Details |
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Material |
Carbon steel (API 5L Gr. B/X42, for general use); Alloy steel (X65/X80, for high pressure); Stainless steel (316/2205, for corrosive fluids); Coated carbon steel (FBE/3LPE, for corrosion protection) |
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Chemical Composition |
Carbon steel: C ≤0.26%, Mn 1.1-1.6%; High-strength alloy (X80): C ≤0.08%, Nb 0.04-0.08%, V ≤0.06% (enhances toughness); Stainless steel (316): Cr 16-18%, Ni 10-14%, Mo 2-3% (corrosion resistance) |
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Mechanical Properties |
Tensile Strength: API 5L B: 415-565 MPa; X80: 555-705 MPa; 316: ≥515 MPa |
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Pressure & Corrosion Resistance |
Carbon steel: Up to 10 MPa (standard); X80: up to 25 MPa (high pressure); Stainless steel: Resists H₂S, CO₂, seawater; Coated pipes (3LPE): Good in soil/atmospheric corrosion |
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Temperature Range |
Service: -40°C to 450°C (varies by material); carbon steel for ambient temps; alloy/stainless for high-temp fluids (e.g., steam, hot oil) |
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Form & Dimensions |
Type: Seamless (high pressure); welded (ERW, LSAW, for long-distance pipelines) |
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Standards Compliance |
API 5L (oil/gas line pipes); ASTM A53 (carbon steel); EN 10217-1 (European welded); ISO 3183 (petroleum/gas pipelines) |
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Fabrication |
Welded: ERW (electric resistance welding) for small sizes; LSAW (longitudinal submerged arc) for large diameters |
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Key Applications |
Oil & Gas: Crude oil, natural gas transmission/distribution pipelines |
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Key Advantages |
High-strength alloy grades enable long-distance, high-pressure transport; welded pipes cost-effective for large-scale projects; coated options extend service life in corrosive soil/seawater; versatile for diverse fluids |
Benefits of Carbon Steel Pipe
Durability
Exceptional strength enables them to withstand high pressures and harsh operational conditions.
Versatility
Adaptable to various applications, from underground plumbing to structural components in buildings.
Cost-Effectiveness
Offers a lower cost alternative to materials like stainless steel, without compromising on performance
Raw Material Sourcing
The initial step in manufacturing carbon steel pipes involves procuring high-quality raw materials. Iron ore, coke, and limestone are the primary ingredients. These are melted in a blast furnace, producing molten iron. This iron, combined with varying amounts of carbon and other alloying elements, determines the type of steel to be produced.
Forming and Shaping Processes
Once the desired steel composition is achieved, the molten steel is cast into billets or slabs. These semi-finished shapes are rolled or extruded to produce the desired pipe size. Two common methods for pipe formation are the Electric Resistance Welded (ERW) method and the Seamless method. ERW pipes are formed by rolling a sheet into a cylinder and welding the seam, while seamless pipes are created by heating a billet and piercing it with a mandrel, followed by elongation and wall reduction processes.
Heat Treatment for Durability and Strength
To enhance the properties of the steel pipe, it undergoes heat treatment processes such as annealing, normalizing, or quenching. These processes involve heating the pipe to specific temperatures and cooling it at controlled rates. This refines the steel’s grain structure, ensuring improved strength, toughness, and flexibility.
Finishing Processes
Once formed and heat-treated, the pipes undergo finishing processes to improve their dimensional accuracy and surface quality. This can include cutting to length, straightening, and surface cleaning to remove any scales or impurities. Some pipes might also receive protective coatings or linings, like zinc or epoxy, to enhance their corrosion resistance and extend their service life.
Oil and Gas Transportation
Carbon steel pipes play a big role in the oil and gas industry. Their strength and durability make them the preferred choice for transporting crude oil from extraction sites to refineries. They also distribute natural gas to homes, businesses, and power plants, ensuring safe and efficient delivery.
Water Supply and Sewage Systems
Carbon steel pipes are integral to water infrastructure in urban and rural settings. They facilitate the movement of potable water from treatment plants to homes and commercial establishments. Their corrosion resistance makes them apt for sewage systems, channeling wastewater from populated areas to treatment facilities.
Structural Applications in Construction
The construction sector frequently employs carbon steel pipes for their load-bearing capabilities. They are foundational pillars in buildings, bridges, and other structures, ensuring stability and longevity. Their resistance to environmental factors makes them suitable for external frameworks exposed to weather elements.
Automotive Industry
In the realm of vehicles, carbon steel pipes find their use in various components. These pipes are important in automotive manufacturing, from exhaust systems that manage and expel gases to structural elements that give vehicles their shape and strength.
Manufacturing and Industrial Processes
Beyond the specific sectors mentioned, carbon steel pipes are the backbone of different manufacturing and industrial processes. They are used in machinery for the movement of fluids, in heat exchange systems, and as components in heavy equipment. Their versatility, strength, and affordability make them indispensable in industry and production.
Additional Information
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Shipping |
We provide multiple trustworthy shipping options such as UPS, DHL, TNT, EMS, and FedEx Express. |
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Terms Of Payment |
We usually accept T/T, L/C, Paypal, Credit card, etc. If you prefer other payments terms, please feel free to discuss with us. |
Certificate
FAQ
As one of the leading carbon steel pipe manufacturers and suppliers in China, we warmly welcome you to buy high quality carbon steel pipe for sale here from our factory. Good service and reasonable price are available.
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