Contact Platform Support
Help CenterSteel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545
Related Products
-
Steel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545NegotiableMOQ: 5 Metric Tons -
Steel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545NegotiableMOQ: 5 Metric Tons
Detailed Specification of Cast Pipe
Cast pipes, commonly known as cast iron pipes, are metal pipes manufactured by smelting molten iron and casting into finished products. They are mainly divided into grey cast iron pipes and ductile iron pipes. Widely applied in municipal water supply & drainage, gas transmission and industrial fluid conveying, they feature high strength, excellent corrosion resistance, long service life and easy installation.
1. Product Classification
1.1 Classification by Material
Grey Cast Iron PipeWith flake graphite structure, it is brittle with poor toughness and easy to crack, offering ordinary corrosion resistance. Featuring low cost, it is mainly used for low-pressure drainage, building sewage and rainwater drainage, and is gradually replaced by ductile iron pipes.
Ductile Iron Pipe (Mainstream Product)Spheroidizing agents are added into molten iron to form spherical graphite structure, combining the corrosion resistance of iron and toughness of steel. Its tensile strength is over 3 times that of grey cast iron. It resists foundation settlement, earthquake and corrosion, suitable for high-pressure water supply, gas pipeline, fire-fighting and deeply buried pipelines.
High Silicon Cast Iron PipeWith silicon content of 14%~18%, it owns outstanding acid resistance, used for conveying strong acid and alkali medium in chemical and metallurgical industries.
1.2 Classification by Casting Technology
Centrifugal Cast Pipe
Sand mould centrifugal casting: low cost, rough surface, for low-pressure water supply and drainage.
Metal mould centrifugal casting: fast cooling, compact structure, accurate dimension and high pressure resistance, applicable to high-pressure water supply and gas delivery.
Continuous Cast PipeFormed by continuous drawing, it has high production efficiency, stable fixed length of 6m/9m, mainly used for small and medium-caliber low-pressure pipelines.
1.3 Classification by Joint Type
| Joint Type | Structural Feature | Sealing Method | Application Scope |
|---|---|---|---|
| Flexible Joint (Type W) | Socket and spigot | Rubber ring compression sealing | Building drainage, low-pressure pipeline, adaptable to ground settlement |
| Flange Joint (Type A/B) | Flange at both ends | Gasket and bolt fastening | High-pressure, large-caliber and industrial pipelines |
| Socket & Spigot Joint | Socket and spigot structure | Rubber ring sealing | Municipal water supply and drainage, easy installation |
| Self-anchored Joint | Locking structure | Rubber ring + mechanical lock | Large-caliber, high water pressure and earthquake-prone areas |
2. Core Technical Parameters (Ductile Iron Pipe)
2.1 Executive Standards
GB/T 13295-2019, ISO 2531, EN 545
2.2 Chemical Composition
C: 3.0%~4.0%, Si: 2.0%~3.0%, Mn: 0.3%~0.8%, S≤0.03%, P≤0.08%, Mg: 0.03%~0.06%
2.3 Mechanical Properties
Tensile Strength: ≥420MPa
Yield Strength: ≥300MPa
Elongation: ≥10%
Hardness: HB 180~230
Working Pressure: PN10/PN16 (1.0MPa/1.6MPa), customized max pressure up to 2.5MPa
2.4 Size Specification
Caliber: DN80~DN2600, common sizes DN100, DN150, DN200, DN300, DN600, DN1000
Standard Length: 6m/9m/12m, customized length available
Wall Thickness: increases with pipe diameter
2.5 Anti-corrosion Coating
External Coating: Epoxy coal tar pitch, PE coating, zinc asphalt coating for soil corrosion resistance
Internal Coating: Cement mortar lining, epoxy ceramic, polyurethane, preventing water corrosion and scaling
Service Life: 50-100 years under normal buried environment
3. Production Process
Melting: Smelt pig iron and scrap steel in electric furnace at 1500~1600℃, adjust chemical composition.
Spheroidizing Treatment: Add spheroidizer and inoculant to optimize internal structure.
Centrifugal Casting: Pour molten iron into high-speed rotating mould for uniform forming.
Heat Treatment: Normalizing and tempering to eliminate internal stress and improve toughness.
Finishing: Fixed-length cutting, socket machining, surface polishing, non-destructive testing and hydraulic pressure test.
Anti-corrosion Painting: Internal and external coating treatment, finished product inspection and storage.
4. Product Advantages
High strength and good toughness, shock-resistant and bend-resistant, adaptable to foundation deformation.
Superior anti-corrosion performance, long service life and low maintenance cost.
Reliable sealing performance, no water leakage, adapting to thermal expansion and contraction.
Simple and fast installation without welding, greatly shortening construction period.
Smooth inner wall reduces water head loss, energy-saving and anti-scaling.
Non-toxic and eco-friendly, meeting drinking water standard and recyclable.
5. Application Fields
Municipal Engineering: Urban water supply pipeline, fire pipeline, rain and sewage diversion pipeline, low-pressure gas pipeline.
Construction Engineering: High-rise building sewage pipe, rainwater drainage and basement drainage.
Industrial Field: Mine drainage, power plant circulating water, chemical medium conveying and metallurgical cooling water pipeline.
Special Scenarios: Earthquake-prone areas, strong corrosion soil areas, deeply buried pipelines and pipelines under heavy-load roads.
6. Installation and Maintenance Guidelines
Inspect pipes, fittings and rubber rings for cracks, sand holes and damage before installation.
Keep socket facing water flow direction, apply lubricant evenly and install rubber ring without distortion.
Insert spigot steadily to the marked position, fix large-caliber pipes with buttress.
Regularly check joint tightness and coating integrity, avoid heavy impact and rolling.
7. Comparison with Other Pipes
| Pipe Type | Advantages | Disadvantages | Application |
|---|---|---|---|
| Ductile Iron Pipe | High strength, corrosion-resistant, long service life, easy installation | Higher price | Municipal high-pressure water supply, gas and buried pipeline |
| Grey Cast Iron Pipe | Low cost | Brittle and short service life | Low-pressure building drainage |
| Steel Pipe | Super high pressure resistance | Easy to rust, complicated installation | High-pressure industrial pipeline |
| PE Pipe | Light weight and low price | Low pressure resistance | Low-pressure rural water supply pipeline |
Send Inquiry to This Supplier
You May Also Like
-
Steel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Cast Pipe，GB/T 13295-2019, ISO 2531, EN 545NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Pipe，10#、20#、35#、45#、20Cr、40Cr、20CrMo、42CrMo、16MnNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Pipe，10#、20#、35#、45#、20Cr、40Cr、20CrMo、42CrMo、16MnNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Pipe，10#、20#、35#、45#、20Cr、40Cr、20CrMo、42CrMo、16MnNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Pipe，10#、20#、35#、45#、20Cr、40Cr、20CrMo、42CrMo、16MnNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Pipe，10#、20#、35#、45#、20Cr、40Cr、20CrMo、42CrMo、16MnNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Pipe，10#、20#、35#、45#、20Cr、40Cr、20CrMo、42CrMo、16MnNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Pipe，10#、20#、35#、45#、20Cr、40Cr、20CrMo、42CrMo、16MnNegotiableMOQ: 5 Metric Tons
