• Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China System 1
  • Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China System 2
  • Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China System 3
  • Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China System 4
  • Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China System 5
  • Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China System 6
Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China

Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices 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) Material: grey iron, ductile iron

3) Type: round type and Square type, triangle

4) ISO9001:2008

5) Material:

a) Grey cast iron (GG)

Type description   EN-GJL-200/-300

Tensile strength       100 – 400 N/ mm²
Elongation     < 1 %  

Loading             400 – 800 N/ mm² 

Density   7.8 kg/ dm³ 

Property    very hard / brittle 

 

b) Ductile Iron (GGG)

Type description    EN-GJS-400/-700

Tensile strength    500 – 1100 N/ mm²

Elongation       2 – 15 %

Loading            700 – 1300 N/ mm²

Density   7.8 kg/ dm³

Property   deformable


Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China

Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China






Specification


Item No.ClassClear Opening(mm)Frame Size(mm)
PBC700B125600×600700×700



Advantages


Good compressive, water-proof, 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

 

Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices Made in China

Cast Ductile Iron Manhole Covers B125 and C250 for industry with Competitive Prices 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 advance the shipment?

A: It should be depends on whether there is sufficient inventory in our warehouse.

3.Can I have my own Logo on the product?

A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.

4.Can I get after-sale service?

A:Yes,we provide after sale service as well.

Q: Why does the precision casting factory not usually make iron castings?
The so-called precision parts is the size, roughness requirements of the piece. Cast iron parts generally do not reach the accuracy.
Q: What kind of casting process is used for cast iron parts? And what are the cast steel parts adopted?
The main content of red sand table (Institute of soil science, China) silica 79.4%. three 1.48%. three 10.55%. two aluminum oxide iron oxide, calcium oxide 0.85%. Magnesium Oxide 0.52%. 1440. refractory mud 3.06% LOI 1.98% red sand with high silicon content, permeability is strong, durable, high refractoriness, good angle, low moisture content, less mud the casting finish is high, the basic requirements of sand should meet the following requirements: Casting of high purity and cleanliness, with silica sand as an example, iron sand SiO2 content of more than 90%, the big steel casting requests the SiO2 content of more than 97%; the high refractoriness and thermal stability; the suitable particle the shape and particle composition; it is not easy to be wetted by the liquid metal; cheap. The particle shape and composition of casting sand particle shape and particle composition permeability properties such as mobility, sand compaction, permeability, strength and resistance to liquid metal effects, is an important indicator of the quality of casting sand.
Q: What's the density of the cast iron? The density is thin and the density is thin
Uneven casting density is caused by uneven shrinkage of the casting during solidification.
Q: What should I pay attention to when designing a casting structure?
(2) in the prevention of metal mold casting misrun and cold partition should pay attention to the following problems: the structure of A casting thickness should be appropriate not too thin, especially when casting size when not too thin; the B should avoid a big level, because it makes the liquid metal in the casting. Rise slowly, and the air contact surface, easy oxidation, and because the metal type liquid metal heat quickly, quickly lose liquidity, easy to cause misrun and cold lap, slag and other defects; C casting shape should be streamlined to avoid sharp corners and has sharp change connection structure in order to facilitate the flow of liquid metal. 2 in the design of metal castings in a complex shape, if the production process is very difficult, should not affect the casting conditions, try to make the casting has simple shape, strong structure change, removed from metallic die for.
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 different casting process and parts materials, each has relevant standards, can be found online;
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: As shown, how do I achieve the tightness test of this product, and achieve industrial production? Seek expert advice.
Precise and tight sealing of the surface to which the test piece is to be tested, equipped with an airtight test instrument, and an electrical control system. You can complete automated testing equipment
Q: When there is no flaw detection for large casting parts, is there any crack inside?
According to the industry standards, within the scope of the standard requirements to determine whether the product is qualified
Q: ZGMn13 casting parts processing, with what knife head good?
The ZGMn13 itself is not have processing, if only the processing point, sharpening, ordinary can, if the processing area is relatively large, ZGMn13 external impact load is bigger,
Q: How can the casting be free of trachoma?
Measures for the prevention of trachoma in castings:1, sand compaction to high, paint two times;

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