• Ductile Iron Manhole Covers in Square or Round in China System 1
  • Ductile Iron Manhole Covers in Square or Round in China System 2
  • Ductile Iron Manhole Covers in Square or Round in China System 3
  • Ductile Iron Manhole Covers in Square or Round in China System 4
  • Ductile Iron Manhole Covers in Square or Round in China System 5
  • Ductile Iron Manhole Covers in Square or Round in China System 6
Ductile Iron Manhole Covers in Square or Round in China

Ductile Iron Manhole Covers in Square or Round 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) production standard: EN124 from A15 to F900

2) Material: grey iron, ductile iron

3) Type: round type and Square type, triangle

4) Sand casting

5).we can produce as per customers' drawings

6)ISO9001:2008


Ductile Iron Manhole Covers in Square or Round in China

Ductile Iron Manhole Covers in Square or Round in China



Specification


Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)Unit Weight (kg/set)
TD90D400700*500800*606150
260
TD90*60D400905*9051055*1055100156


Advantages


Good compressive, 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% 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


Ductile Iron Manhole Covers in Square or Round 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?

A: 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.Could you specially design and produce for clients?


A: Of course, we have all kinds of professional engineers. We can design and produce special products according to customers' requirements. Such as: special size, special control, OEM, etc.


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:What are the factors affecting the machining process of the casting material and structure?
Medium carbon steel begins, and the casting can not be punched and tapped directlyStainless steel, ordinary grade (Fe based alloy element content, less) can not do heat treatment. But processing small holes or tapping to heat treatment (solution. In practice, the annealing treatment can also be). There are a lot of stainless steel matrix is not to say, for example, nickel, cobalt and tungsten. And so on.
Q:What are the casting parts used to test shrinkage holes?
3 fluorescent magnetic powder, this method can also be found in part.
Q:How can the casting be free of trachoma?
2, pouring temperature should be enough, otherwise the sand can not float up;
Q:our factory now produces steel castings in the use of polishing directly after spraying processing, but the powder sprayed 15But the spray powder touched off what is the reason we are not very strict requirements not only need to peel off bubbles can also, because our products are steel castings so we use steam hole sludge put on. Do not know if this spray treatment has no effect to thank friends with us!
The pre treatment temperature and the quality of plastic powder are likely to be problems
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:Why should pig iron be used in casting?
1, in the absence of special requirements, the most important thing is that the price is cheap.2, pig iron castings quenching process requirements are not high. You can do it by hand.3, pig iron casting hardness is very large, can meet many requirements.4, pig iron castings, high temperature resistance is relatively strong. Like stoves are pig iron castings.5, pig iron casting plasticity is very bad, but in some experiments, but use this weakness to improve the sensitivity of the experiment.Wait
Q:The casting defects of pores, trachoma how to repair?
Airhole above 2mm recommended LT101 casting defect repair agent. If repair quality requirements, high availability LT111 iron repair agent, LT112 steel repair agent, LT113 aluminum repair agent, LT114 copper repair agent.
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?
There are various casting stresses after casting, which can be divided into two kinds: thermal stress and shrinkage stress. In a long time placed in the atmosphere, called aging treatment.Aging treatment is an effective measure to eliminate casting stress. Aging is divided into natural aging, thermal aging and resonance aging.1, the so-called natural aging, the casting is placed in the open field for more than half a year, so that the internal stress relief.
Q:What are the casting parts tested?
The surface brightness, appearance, size, chemical composition, weight, material, surface defects, internal defects, seals need to be checked, leakage, etc.

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