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Help CenterSteel Pipe & Tube & Casting Pipe，GB/T 13295、GB/T 8715、GB/T 11352
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Steel Pipe & Tube & Casting Pipe，GB/T 13295、GB/T 8715、GB/T 11352NegotiableMOQ: 5 Metric Tons -
Steel Pipe & Tube & Casting Pipe，GB/T 13295、GB/T 8715、GB/T 11352NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Casting Pipe，GB/T 13295、GB/T 8715、GB/T 11352NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Casting Pipe，GB/T 13295、GB/T 8715、GB/T 11352NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Casting Pipe，GB/T 13295、GB/T 8715、GB/T 11352NegotiableMOQ: 5 Metric Tons
Cast Pipe - Product Specification
1. Product Overview
Cast pipes are integrally cast tubular components manufactured from pig iron, carbon steel and alloy materials via sand casting, centrifugal casting, permanent mold casting and other processes. Featuring high strength, excellent wear resistance, impact resistance, corrosion resistance, superior tightness and long service life, they are widely applied in water supply & drainage, municipal engineering, mining, metallurgy, chemical industry, electric power, heating & ventilation, fire protection, oil & gas transportation and other fields, serving as key pipes for fluid transmission and supporting load-bearing in industrial and infrastructure projects.
2. Main Production Processes
Centrifugal CastingThe mainstream production method. Pipes made by this process have dense metallographic structure, uniform wall thickness, smooth inner and outer surfaces, excellent mechanical properties, high dimensional accuracy and strong pressure resistance, suitable for medium and high-pressure transmission pipelines.
Sand CastingA mature and cost-effective process. It is applicable for manufacturing large-diameter pipes and special-shaped fittings such as elbows, tees and integral flanged pipes, ideal for large-caliber pipelines under low and medium pressure working conditions.
Permanent Mold CastingIt delivers good surface finish and high production efficiency with stable dimensions, mostly used for standard cast pipes and matching fittings of small and medium calibers.
3. Material Classification & Properties
3.1 Gray Cast Iron Pipe (HT150 / HT200 / HT250)
Features: Good vibration damping, excellent wear resistance, easy machining and cost efficiency with high compressive strength and moderate brittleness.
Application: Municipal water supply & drainage, sewage pipelines, rainwater pipe networks and underground buried pipelines.
3.2 Ductile Iron Pipe (QT450-10 / QT500-7)
Features: High toughness, tensile resistance, resistance to ground settlement and seismic performance, outstanding fatigue resistance. Its overall performance is far superior to ordinary gray cast iron pipes.
Application: Urban main water supply pipelines, gas pipelines, long-distance buried pipelines and pipelines beneath heavy-load roads.
3.3 Carbon Steel Cast Pipe (ZG230-450 / ZG270-500)
Features: High strength, high temperature resistance, high pressure resistance and good weldability.
Application: Industrial high-temperature fluid pipelines, steam pipelines, chemical medium transmission pipelines and supporting pipes for power stations and boilers.
3.4 Alloy Cast Pipe (Wear-resistant / Corrosion-resistant Alloy)
Features: Extreme wear resistance, acid & alkali resistance, high-temperature oxidation resistance and anti-scouring performance.
Application: Mine tailing pipelines, metallurgical slag slurry pipelines, pipelines for corrosive chemical media and coal powder transmission pipelines.
4. General Specifications
Nominal Diameter: DN50 ~ DN2600 (Custom large-diameter and non-standard sizes available)
Nominal Pressure: PN0.6, PN1.0, PN1.6, PN2.5, PN4.0 MPa (Custom pressure grades per working conditions)
Standard Single Pipe Length: 4m, 5m, 6m (Custom lengths acceptable)
Wall Thickness: Designed according to pipe diameter, pressure grade and service environment; thickened wear-resistant design available on request.
Executive Standards: GB/T 13295, GB/T 8715, GB/T 11352 and other national standards; compliant with international general pipe standards.
5. Structural Types & Connection Methods
5.1 Pipe Structure
Straight pipe, flanged straight pipe, socket straight pipe, elbow, tee, reducer, special fittings for inspection wells and integrally cast flanged components.
5.2 Main Connection Types
Socket Joint: Easy installation and reliable sealing with rubber sealing rings for excellent anti-leakage performance, widely used in buried water supply and drainage pipelines.
Flange Joint: Convenient assembly and disassembly, high pressure resistance and superior tightness, suitable for industrial pipelines, pump houses and equipment connection.
Flexible Joint: Capable of deflection and expansion, adaptable to ground settlement and geological deformation, the preferred choice for municipal pipe networks.
6. Surface Treatment & Anti-corrosion Technology
Inner Wall Anti-corrosion: Cement mortar lining, epoxy ceramic coating, epoxy resin coating and asphalt coating to prevent scaling and corrosion and improve fluid transmission efficiency.
Outer Wall Anti-corrosion: Asphalt paint, epoxy coal tar pitch, anti-rust paint, thermal spray coating and galvanization to resist corrosion from soil, rainwater and atmospheric environment.
Wear Reinforcement: Inner wall quenching, wear-resistant coating and thickened pipe wall for pipelines conveying scouring and abrasive media.
7. Core Product Advantages
Stable Mechanical Performance: Integral casting without welds, completely eliminating leakage and cracking risks at welds for high safety factor.
Strong Environmental Adaptability: Resistant to low and high temperature, soil corrosion and heavy surface load. The service life of buried pipes can exceed 50 years.
Smooth Fluid Transmission: Smooth inner wall reduces flow resistance, lowers energy consumption and prevents pipeline blockage and sediment accumulation.
Easy Installation & Maintenance: Complete supporting fittings and standardized interfaces ensure high construction efficiency and convenient later inspection and replacement.
Wide Compatibility: Customizable diameter, pressure grade, material, length and shape to meet conventional and special working condition requirements.
8. Application Fields
Municipal Engineering: Underground pipe networks for urban water supply, sewage, rainwater and gas.
Building & Fire Protection: Main fire pipelines of buildings and water supply & drainage pipe networks in residential communities.
Mining & Metallurgy: Mine slag slurry and tailing transmission pipelines, cooling water pipelines and dust removal pipelines for metallurgical industry.
Chemical Industry & Electric Power: Pipelines for acid-base chemical media, steam, circulating water and auxiliary equipment of power stations.
Water Conservancy Projects: Farmland irrigation pipelines, reservoir diversion pipelines and water inlet & outlet pipelines of pump stations.
9. Packaging, Transportation & Storage
Packaging: Pipe ends are sealed and protected; pipe bodies are wrapped with straw ropes or woven belts. Protective covers are installed on flange surfaces to avoid collision damage and foreign matter entry.
Transportation: Transported in bulk with steel frame fixation to prevent rolling, impact and extrusion.
Storage: Stack on flat ground with sleepers for separation. Keep away from acid and alkali corrosive substances and seal pipe ends properly.
10. Customization Instructions
We can produce non-standard diameter pipes, special thick-walled pipes, dedicated high-pressure / wear-resistant / anti-corrosion pipes, special-shaped cast fittings and customized joint types and anti-corrosion coatings according to customer drawings and working parameters. Material test reports, pressure test reports and factory certificates are available.
Concise Version (for Product Label & Brief Introduction)
Cast pipes are produced by integral centrifugal casting and sand casting. Available in gray cast iron, ductile iron, carbon steel and alloy materials. With no welds, high pressure resistance, excellent corrosion resistance, impact resistance and long service life. The diameter ranges from DN50 to DN2600, equipped with socket, flange and flexible joints as well as a full set of matching fittings. Widely used in municipal water supply & drainage, gas, mining, chemical industry, electric power and fire protection fluid transmission projects. Custom sizes, pressure grades, anti-corrosion and wear-resistant solutions are acceptable.
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