• Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China System 1
  • Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China System 2
  • Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China System 3
  • Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China System 4
  • Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China System 5
  • Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China System 6
Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China

Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 set
Supply Capability:
4166 set/month

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Product Description


1) Type:round type and Square type,triangle

2) Coating 
a) Cold applied black bitumen 
b) Without coating 
c) Coating as per customers' requirement 
4) Different accessories are available 
3)Packing 
Steel or wood pallet, or as per customers' requirements'

Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China

Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China





Specification


Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)
D90D400800*800907*907100
D70D400600*600703*703100


1.Applicable medium:gases,liquids,steam
2.Materail:ductile iron,Gray cast iron

Tested item standad

Anti-breaking strength (Mpa)>14

Impact toughness resistance (kg/cm2)>95

Tensile strength (Mpa)>10

Compressive strength (Mpa)>30

Modulus of elasticity(kg/cm2)>1.4*104

Cold-hot resistance measure<0.4< span="">

Smooth surface and anti-theft


Advantages


Good compressive, water-proof, hot sale in the world,anti-corrosion, long service life (at least 30 years).

Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China


Packaging & Shipping


Packaging: Details Pallet with bubble film, Carton or with pallets,

Delivery Detail: 8 days if your order is 20"container, and we will deliver your goods as soon as possible.


Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China



Ductile Iron Manhole Cover With EN124 Standard by Professional Manufacturers in China


FAQ


1. What is your minimum order requirement?
    We will indicate the MOQ for each item in the quotation sheet. we accept the sample and trial order. If the quantity of single item can't reach the MOQ, the price should be sample price.

2.Are you factory ?
   YES!  We are a professional ductile iron &gery iron casting  Factory in China.

Q: What are the casting parts used to test shrinkage holes?
3 fluorescent magnetic powder, this method can also be found in part.
Q: What are the factors affecting the machining process of the casting material and structure?
The impact on the machining is obvious, it should be the material and heat treatment of the castingCarbon steel parts should be treated by heat treatment (annealing) without special conditions. It can effectively prevent the uneven hardness and hard points. It is easy to turn.
Q: Why does the surface of stainless steel casting mirror mirror ripple?
Because the grinding machine is layer by layer. And the material inside the casting is not completely uniform.
Q: What is the difference between forging parts and casting parts?
The forging can guarantee the continuity of the metal fiber tissue, make the fiber structure of the forging keep the same shape as the forging, the metal streamline is complete, the tissue is compact, and the mechanical property is good. To ensure that the object has good mechanical properties and long service life, the processing of objects sharp, durable, high strength, first-class quality.
Q: In theory, which is more expensive, forging parts or casting parts?
It depends on the structure. In theory, the shape of the forging is relatively simple, but the requirement of internal structure is relatively high
Q: How much is the amount of electrophoretic paint per square meter used in the casting?
In general, when the final thickness of 15-20 microns, cathode electrophoresis paint can be coated per kilogram of 6-8 square meters, the current general cathode electrophoresis paint for the price of 22 yuan / kg, so the cathodic electrophoresis electrophoresis paint cost at 4 yuan / square meters.
Q: What's the density of the cast iron? The density is thin and the density is thin
There is a hot knot in the thick area, which easily causes microscopic shrinkage and makes the casting not dense. A riser may be added for shrinkage relief.
Q: What are the causes of pitting on the surface of a precision casting?
The quality of the shell surface is out of order. Or shot blasting out of question.
Q: How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness
Hot galvanizingGenerally 0.06 mm or more
Q: Why should pig iron be used in casting?
Cast iron is generally called pig iron, but casting is not merely iron casting.For example, injection molding, die casting, and so on, in fact, cast iron, cast steel, cast aluminum, plastic and so on, can be used in the form of casting processing molding

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