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

Ductile Iron Manhole Covers 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) Process 
c) Molding boards 
d) Green sand with hand molding 
3) Coating 
a) Cold applied black bitumen 
b) Without coating 
c) Coating as per customers' requirement 
4) Different accessories are available 
5)Packing 
Steel or wood pallet, or as per customers' requirements'

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

Ductile Iron Manhole Covers 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

Water-absorption<1.0

Surface treatment

Black bitumen coated and hot gavanized

Smooth surface and anti-theft



Advantages


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

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


Packaging & Shipping


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

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

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




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


FAQ


1. How about your price?

    A: As one of famous manufacturers of Ductile iron products in China, Our prices are very favorable and competitive. The customers from all-over the world.

2. 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.

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

Q: Domestic large steel castings factory which is better, recommend!
Do the casting manufacturer of large steel castings, Hunan Jinsha heavy industry science and technology limited company, heard that their professional only more than 1 tons of steel castings, anyway, 150T just big, the company won a lot of foundry industry patents should be good.
Q: What are the effects of stiffeners on castings, or on welded parts (for 2 tons or less), casting or weldments on stiffeners?
Please consider the following points:1, batch: if the product batch is very large, casting will certainly have advantages, cost sharing will be very low. If less, it is recommended to use weldments.2. Reinforcement structure: if the structure is relatively simple, it is recommended to use welded parts, complex, preferably casting.
Q: What is the difference between forging parts and casting parts?
No, it's called die castingDifference: the die casting parts are simple in structure and large in batch sizeCasting: the use of a wide range of structures without restrictions
Q: What is the reason for 304 stainless steel precision casting parts to be changed?
Mainly because of the cooling shrinkage caused by internal stress caused. There is the change of temperature distribution in materials element imbalance, is typical of surface and internal, thin wall and thick wall, bottom and top.
Q: Question, such as title, I hope I don't copy the definition of rolling and casting in Baidu encyclopedia, thank you
Service performance: heat conductivity, friction reduction, shock absorption, heat resistance and corrosion resistanceTo compare these properties, it depends on the specific material, structure, and use of the parts. Otherwise, there is no comparisonS
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: What is the difference between casting and stamping parts?
Separation process is also called blanking, the purpose is to make the stamping parts along a certain contour line from the sheet metal separation, at the same time guarantee the quality requirements of the separation section. Stamping is a highly efficient production methods, the use of compound die, especially the multi station progressive die stamping process can be completed in a multi machine, realized by belt uncoiling, leveling, punching, forming and finishing automatic production. High production efficiency, good working conditions, low production costs, can produce hundreds of parts per minute.
Q: What do you mean by "proofing" in the casting? Do you charge for the proofing?
Proofing refers to making the first sample to confirm to the customer
Q: Can the casting part be phosphating with the phosphating solution of the pickling board?
Like stainless steel casting, duplex stainless steel casting is phosphating, ductile iron gray iron is not required
Q: Is 316 casting better than 304 casting?
The degree of difficulty in the process of casting depends mainly on the structure, precision requirements, and hardness of the casting. It is comprehensive. There is no simple comparison of the material to determine the degree of difficulty in processing

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