• Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China System 1
  • Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China System 2
  • Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China System 3
  • Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China System 4
  • Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China System 5
  • Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China System 6
Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China

Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China

Ref Price:
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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) production standard: EN124 from A15 to F900

2) Type:round type and Square type,triangle

3) Sand casting

Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China

Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China











Specification



Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)Unit Weight (kg/set)
RGC-01LC250390*325530*46510023


1.Standard:ISO9001,EN124
2.Applicable medium:gases,liquids,steam
3.Materail:ductile iron,Gray cast iron

Tensile strength (Mpa)>10

Compressive strength (Mpa)>30

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

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

Water-absorption<1.0< span="">

Surface treatment

Black bitumen coated and hot gavanized

Smooth surface and anti-theft


Advantages


Good compressive,  waterproof,anti-rust ,bending and impact strength, anti-corrosion, not rust, long service life (at least 30 years).

The quality meets the same kinds cast ion manhole covers but the cost is 30% or so lower than other companies.                              


Packaging & Shipping



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

 

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

Cast Ductile Iron Manhole Cover C250 for Mining with Frame Made in China




FAQ


1.Can I get free samples?

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

2.Can I request to change the form of packaging and transportation?

A:Yes,We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

Q: Why does the precision casting factory not usually make iron castings?
Because it is too cheap, the design of materials is cast iron, generally do not have very high requirements.
Q: Explain the heat treatment effect of casting parts, forging parts and welding parts
The three methods of metal processing have one thing in common. They are hot working, which are different in temperature and range of processing. Ductile cast iron is widely used because of its brittleness and poor impact. Heat treatment of cast iron usually adopts the annealing process, reduce the casting effect: 1 because of the internal stress caused by the thermal expansion and contraction, reduce the deformation after machining, decrease surface hardness, improve machining conditions;
Q: Is the cast steel a casting part?
Cast steel is divided according to material, as well as cast iron parts, cast aluminum parts and so onCasting parts are divided according to the method, as well as forging partsCast steel parts must be casting parts
Q: How to get rid of casting sand inside casting parts?
Are you saying that in the sand casting cavity? We use the manual blast, he is like a pipe will be automatic shot out of the grit, into the casting cavity, to remove the internal cavity in the purpose of casting sand!
Q: For example, casting parts contain many holes, inclusions and other defects, the size and the number of holes exceed which limit is not qualified
According to the grade of the parts, according to the relevant standards, the regular drawings will be noted in the technical requirements of the parts.
Q: We are small castings, the need for surface treatment of shot blasting machine, about how much?
according to the comprehensive consideration of factors such as yield, size of workpiece commonly used on the market the crawler shot blasting machine has Q324, Q326, Q328, Q3210, and each time the amount of their treatment were 125KG, 200KG, 400KG, 600KG, the specific use of what types also need to be determined according to the actual situation
Q: Heat treatment process and purpose of casting parts
Natural aging (also known as Chang Hua): lost in the open, the sun and rain, can have experienced years of wind and frost.
Q: Younger brother is to do casting valve, precision casting parts, the valve internal sand serious, but the appearance is very standard, this is why, for God answers, thank you!
Valve sand core mold drying is not in place, excessive water content
Q: Is 316 casting better than 304 casting?
It is comprehensive. There is no simple comparison of the material to determine the degree of difficulty in processing
Q: Shandong foundry, casting small pieces of precision casting
Small foundry in Shandong too much, like many of us in Qingdao, then Dongying Changshun investment casting is a home, they are also casting precision casting equipment, specifically what I recommend that local enterprises, far is not convenient,

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