DUCTILE IRON PIPES AND PIPE FITTINGS K7 DN450

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t
Supply Capability:
30000 m.t/month

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Product Description:

  • Material : Ductile Cast Iron

  • Size Range : DN 80mm to DN 2000mm

  • Unit Effective Length : 6m or 5.7m

  • Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007

  • Annual capacity : 200,000 tons

  • Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.

  • Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179

  • Special requirements on external coating and internal lining can be applied

  • We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

Additional Parts:

  • Each pipe is strictly inspected according to related standard to ensure permanently high performance.

  • Easy Installation at site and service free for life

  • Long Service Lifespan

  • Quotation will arrive you within 24hours once we get your inquiry.

  • We guarantee offering you a competitive price.

  • A copy of original inspection reports of pipes will be offered after shipment.

  • Photos of loading process will be sent to the customer after shipment effect.

  • We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.

 

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Q:What is the excavation width of ductile iron pipes with diameters greater than 1400?
Then, according to the soil characteristics, different slopes are calculated, and the width of the excavation is calculated according to the depth and slopeIf the soil is soft, high water content and easy to collapse, the excavation width will be wide, otherwise the slope will be steep and the excavation width will be narrow
Q:Which is good for water polo cast iron pipe steel pipe?
In summary, if the demand is not high, the use of stable environment, pressure and vibration is not a place recommend the use of ductile iron pipe; if is an important facility for high requirements or site conditions, abnormal conditions, vibration and impact may be relatively large, with ordinary seamless steel tube.
Q:What's the difference between grey cast iron pipe and ductile iron pipe?
Spheroidal graphite cast iron and ordinary cast iron contain graphite monomer, that is to say, cast iron is a mixture of iron and graphite. The graphite in ordinary cast iron is flaky, and the strength of graphite is very low, so there are many flakes of voids in the cast iron, so the strength of ordinary cast iron is lower and more brittle. Graphite in graphite cast iron is spherical, equivalent to the existence of many spherical voids in cast iron. The effect of spherical voids on the strength of cast iron is much smaller than that of sheet voids, so the strength of nodular cast iron is much higher than that of ordinary cast iron.
Q:What is ductile iron pipe?
Ductile iron pipe is a kind of cast iron pipe. In quality, the spheroidization of cast iron pipes is controlled to be 1-3 (spheroidization rate 80%), so the mechanical properties of the material have been better improved, with the nature of iron and the properties of steel. Ductile cast iron pipe after annealing, the microstructure is ferrite and pearlite, good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc..
Q:Is nodular cast iron pipe filled with Yau Ma Tei?
In many areas of our country, ductile iron pipe in the middle and small diameter to tube connected with the tube, the bearing type or flange interface method; ductile iron, angle limit must be allowed better seismic performance and sealing performance.
Q:Ductile iron and gray iron is what are the advantages and disadvantages of it
Comparison of nodular cast iron and cast steelThe strength of nodular cast iron is comparable to that of cast steel. Ductile iron has higher yield strength, the lowest yield strength is 40K, while the yield strength of cast steel is only 36k. In most municipal applications, such as water, brine, steam, ductile iron has more corrosion resistance and oxidation resistance than cast steel. Because of the spheroidal graphite microstructure of nodular cast iron, nodular cast iron is superior to cast steel in reducing vibration ability, so it is more beneficial to reduce stress. An important reason for choosing ductile iron is that ductile iron costs less than cast steel. The low cost of ductile iron makes this material more popular, more efficient and less costly for ductile iron.
Q:Does the cast iron pipe for spheroidal graphite need corrosion protection when laying underground?
Ductile cast iron pipe after annealing, the microstructure is ferrite and pearlite, good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc..
Q:Why is the cast iron tube lined with cement? Under what circumstances are ductile iron pipes lined with cement, and under what circumstances do not have to be lined with cement?
The cement lining protects the water quality, reduces the head loss and improves the service life of the spheroidal graphite pipe. As long as the water delivery hose is used, the cement lining must be used. There is no lining cement for conveying air.
Q:What is the relationship between the mechanical properties of spheroidal graphite cast iron and its spheroidization rate?
The spheroidization level reflects only the final shape of graphite. The higher the spheroidization level of ductile iron is, the better its performance is, but this is not entirely the level of spheroidization to determine.The mechanical properties of nodular cast iron are closely related to its microstructure. Different grades of ductile iron require different mechanical properties such as tensile, yield, elongation, impact and hardness.
Q:How to choose a ductile cast iron pipe with guaranteed quality
1, first of all choose the regular manufacturers of ductile iron pipe products.2, the choice of ductile iron pipe, should be based on the specific circumstances of the construction site, select the pipe and fittings corresponding to the form of interface.3, rubber rings recommend the use of three yuan ethylene propylene rubber ring and so on.4, listen to the voice, knocking the iron: short duration. The iron ball: crisp sound, echo, short duration5, the cutting surface is gray: gray, shiny surface seems very dark, very rough. Ductile iron: gray, gray luster is bright, like gray surface roughness.

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