• Economical Custom Design EN124 C250 Ductile Iron Manhole Cover System 1
  • Economical Custom Design EN124 C250 Ductile Iron Manhole Cover System 2
  • Economical Custom Design EN124 C250 Ductile Iron Manhole Cover System 3
  • Economical Custom Design EN124 C250 Ductile Iron Manhole Cover System 4
  • Economical Custom Design EN124 C250 Ductile Iron Manhole Cover System 5
  • Economical Custom Design EN124 C250 Ductile Iron Manhole Cover System 6
Economical Custom Design EN124 C250 Ductile Iron Manhole Cover

Economical Custom Design EN124 C250 Ductile Iron Manhole Cover

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 set
Supply Capability:
3900 set/month

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Item specifice

Process:
Casting. Deburring .Drilling .threading
Color:
black, Grey, green, blue and Marble
Type:
Moulding Press
Size:
Customer's Request
Shape:
Square,round
Service:
OEM Service
Surface treatment:
Painting
Certification:
ISO9001 2008
Specification:
OEM
Standard:
EN124 Standard
Product Name:
OEM Products
Usage:
Construction
Material:
Iron
Brand Name:
CMAX
Connection:
Extrusion molding
Place of Origin:
Hebei, China (Mainland)

Product Detail

1) Material 
a) Ductile Iron GGG500-7 & 400-12 
b) Grey Iron GG20

2) Designs.
a) EN124 A15, B125, C250, D400, E600 and F900 
b) A60005 for casting design 
c) Major standards designs available 
d) As per customers' drawings or samples 
3) Process 
c) Molding boards 
d) Green sand with hand molding 
4) Coating 
a) Cold applied black bitumen 
b) Without coating 
c) Coating as per customers' requirements


Specification

Economical Custom Design EN124 C250 Ductile Iron Manhole Cover


Advantage of ductile iron

Higher quality /higher tensile
Higher security /long life

     

Packaging and Shipping

Delivery Detail: 8 days if your order is 20"container

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


Economical Custom Design EN124 C250 Ductile Iron Manhole Cover


Economical Custom Design EN124 C250 Ductile Iron Manhole Cover


Our Company

We take pride to introduce ourselves as the leading manufacturer and professional supplier of various Ductile Iron Manhole covers in China with total annual capacity 50,000 MT.

CNBM manhole cover regard quality as the essential factor leading to successful business. After years of efforts, CNBM manhole cover have built up great reputation in terms of quality and service among domestic and overseas customers.


FAQ

About Sample

Q : Can I get free samples?

A: Yes, we can provide you the free sample, but you have to bear the delivery costs.

About Customer Logo

Q:  Can I have my own logo on the product?
A: Yes, you can send your logo design to us and send us the authority letter. Then we can cast the logo on body.


Q:Why do casting parts have air holes?
There are many reasons for casting porosity, mainly due to:1. smelting process is unreasonable, metal liquid absorbs more gas;2. the gas in the mold invades the metal liquid;3. from the mold is more water brush, core dry;4. the casting has poor ventilation;5. ladle tools are not dry.Wait。
Q:What kind of casting process is used for cast iron parts? And what are the cast steel parts adopted?
The types and uses of foundry sand according to the mineral composition of different silica sand and non siliceous sand is divided into two categories. The main mineral composition of silica SiO2.: natural silica sand used for non-ferrous metal casting, cast iron and steel castings in small sand and core sand. The selection of natural silica sand: used in organic matter as the binder of various sand and core sand. The artificial sand for sand and core sand castings. Non siliceous sand and non siliceous sand have many kinds and different uses. Limestone sand: crushed by limestone, the main mineral composition is CaCO3, used for casting sand and core sand. Zirconium sand: the main mineral composition is ZrO2 SiO2, used for large steel castings and alloy steel pieces of core sand or sand surface sand, or powder used as coating. Magnesia: the main mineral composition is MGO, used for high manganese steel casting surface sand, core sand, and its powder can be used as coating. Chromite ore: the main mineral composition is chromite FeO. Cr2O3, used for large or special casting steel surface sand, core sand, its powder can be used as coating.
Q:What are the requirements for casting steel castings?
2, the plane should be placed on the following.3, thin parts should be placed below.
Q:How to cast iron and wrought iron collocation
So we can only watch and ear distinction: 1, see: Iron fracture is rough, showing a bead (for the sake of coarse grain iron), and wrought iron fracture is generally more smooth; if this is a new fracture, but also to see the dark and shiny born iron wrought iron pig iron is bright; the fracture is generally irregular, because it is very brittle, mostly is interrupted, (which is processed, it is very flat and wrought iron) must not be interrupted, mostly by certain way processed separately, so the fracture is generally neat; if the fracture is that is cutting, wrought iron, iron is not cutting; iron surface will not have pores, familiar iron porosity; if a piece of iron is a significant deformation (bending) that is wrought iron because of poor plasticity It doesn't have to be so deformed, it's really bent, or it's broken, or it's obviously cracked, and it doesn't bend very much. There are some details that can not be made clear. It is necessary to have some experience.
Q:What method of casting does not rust? I think the sample is like oil
The surface of a general casting is easy to rust. In order to prolong the rusting period, antirust paint or antirust oil is usually sprayed. What you said should be anti rust oil.
Q:Casting parts need to be subjected to the kind of heat treatment after the weldment is finished
1, gray cast iron: General graphite annealing, to be heat treatment annealing, surface hardening etc.; ductile iron can be various: annealing, normalizing, quenching and isothermal quenching, surface treatment, chemical heat treatment.2. Pouring liquid metal into the casting cavity which adapts to the shape of parts. After cooling and solidification, the casting method is called casting. Castings obtained by casting are called castings. Casting structure design: ensure the working performance and mechanical performance requirements, consider the technical requirements and performance of alloy casting casting casting structure, casting structure design is reasonable or not, the casting quality, productivity and cost has a great influence.3. Heat treatment is a metal hot working process in which the material is in solid state by means of heating, heat preservation and cooling to obtain desired microstructure and properties
Q:How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.
The material is usually steel material price plus the cost (per ton of 2.5-3 million, plus profit).In the Yangtze River Delta region, generally 304 casting price of about 5-5.5 million / ton.The price will be higher if the parts are complex, or a piece weighs less than 100 grams.
Q:Domestic large steel castings factory which is better, recommend!
At least spend money on research and development, then the quality should be all right.
Q:The casting sand is going on
Dispersed sand inclusion is common on the surface and subcutaneous of steel castings, often concentrated on the outer surface of the upper box and the inner surface of the lower case, and a few of them are inside the cast steel parts.
Q:Would you please tell me how to use casting parts for a year?The cast of an aircraft wing needs to be put aside for a year before it breaks;Does anyone know why?
3, the resonance method is cast on its resonant frequency vibration 1060ndn, to eliminate the residual stress in casting.

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