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

Ductile Iron Manhole Covers With EN124 Made by Professional Manufacturers in Hebei

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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. Sample is available for free.

2. Free charge of design labels and cartons.

3. Professional technical support with free charge.

4.Packing 
Steel or wood pallet, or as per customers' requirements'


Ductile Iron Manhole Covers With EN124 Made by Professional Manufacturers in Hebei

Ductile Iron Manhole Covers With EN124 Made by Professional Manufacturers in Hebei




Specification


Item No.ClassClear Opening(mm)Frame Size(mm)
D90D400800*800907*907


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, serviceable life (at least 30 years).



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 With EN124 Made by Professional Manufacturers in Hebei






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.How long can you make your quotation:
   Within 3 workdays after received your detailed product information 

3.How about your service?

   We provide packaging service and after sale service as well.

Q: Explain the heat treatment effect of casting parts, forging parts and welding parts
2 improve the crystal structure, enhance the formation and stability of spherical carbon crystal;Forgings are generally stress bearing members, and most of them are made of high strength medium carbon steel (alloy), which is formed by forging and fine crystalline. After the shell is annealed or quenched and tempered, the mechanical properties of the shell are more superior, and it has better strength and better elasticity;Welding materials.
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: 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: Casting parts have poor surface finish. What sand is used to make them?
Manual coal dust, clay sand is a little worse. Mechanical styling is not bad either.
Q: I often see Waixiejiagong drawings, casting, how to distinguish the latheman.
Yes, casting drawings are casting drawings with machining allowances, slopes, and gating systems
Q: What kind of flaw detector is better for casting parts?
Casting using the detector test, you must first determine the detection process, such as the detection of surface and near surface crack defects, such as casting, recommended by CYD-3000, or CYD-5000 mobile magnetic testing machine for testing.
Q: Which surface is coarser for cast iron or cast steel castings? Why?
The surface of the steel is more rough, because the coating sand cast steel cast iron particles compared with graphite coating degree, the other one is to get a better air permeability and collapsibility of sand, the compaction degree is smaller than iron.
Q: Which master knows how the casting tolerances for malleable iron, gray iron and ductile iron should be chosen? Hurry up, thank youCan you provide a tolerance scale for castings, please?
Usually manual molding optional CT11 class, ordinary machine modeling optional CT10 class, high pressure molding should reach CT9 level. The tolerances on the wall thickness of the casting are comparable to those of other dimensions of the same casting.
Q: What's the cause of the choking of the casting?,
2. when casting mold exhaust condition is not good, in the casting material use consider whether and hinder its gas permeability; in the process to consider to release more pores, multi venting; core exhaust is particularly important.
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,

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