Ductile Iron Manhole Covers With EN124 Standard by Professional Manufacturers in China

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Loading Port:
Tianjin
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TT OR LC
Min Order Qty:
100 set
Supply Capability:
4166 set/month

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Product Description:

Product Description


1) Type:round type and Square type,triangle

2) Process 
c) Molding boards 
d) Green sand with hand molding 
3) Coating 
a) Cold applied black bitumen 
b) Without coating 
c) Coating as per customers' requirement 
4) Different accessories are available 
5)Packing 
Steel or wood pallet, or as per customers' requirements'

Ductile Iron Manhole Covers With EN124 Standard by Professional Manufacturers in China

Ductile Iron Manhole Covers With EN124 Standard by Professional Manufacturers in China




Specification


Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)
D90D400800*800907*907100
D70D400600*600703*703100


1.Applicable medium:gases,liquids,steam
2.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, long service life (at least 30 years).

Ductile Iron Manhole Covers With EN124 Standard by Professional Manufacturers in China


Packaging & Shipping


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

Delivery Detail: 8 days if your order is 20"container, and we will deliver your goods as soon as possible.

Ductile Iron Manhole Covers With EN124 Standard by Professional Manufacturers in China




Ductile Iron Manhole Covers With EN124 Standard by Professional Manufacturers 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?
    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.Are you factory ?
   YES!  We are a professional ductile iron &gery iron casting  Factory in China.

Send a message to us:

Remaining: 4000 characters

- Self introduction

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Q:What should I pay attention to when designing a casting structure?
The basic structure of unit 3 in the design of metal casting casting and its parameters are selected, usually should also pay attention to: (1) because of the metal type heat quickly, so the metal type casting minimum wall thickness should be bigger than the sand casting casting casting; (2) the inner wall of the internal ribs and the thickness of a should be connected the outer wall thickness of 0.6 to 0.7, or as the inner wall (rib) cold slowly, cracks in the wall at the junction in the casting shrinkage; (3) to prevent generating white grey cast iron, in addition to taking measures in the process, must make the wall thickness is not too thin (some information that cast fillet at the corner of the wall thickness of 15mm or more, with metal casting casting must be in the corner, for Aluminum Alloy, metal casting magnesium alloy castings shall not be less than 3 ~ 4m; (4) because of the metal type and the core that, for To facilitate the extraction of castings and casting out type, slope casting should be suitably large than sand casting metal casting, the general should be 30% ~ 50%, it should be pointed out that in addition to the height of the slope of casting size and alloy type, wall, is also related to the casting surface position, where the cooling and contraction of the metal type the surface of casting surface can be designed from the tendency of small inclination, while casting shrinkage tend to be pressed on the surface of metal casting type should be given greater inclination.
Q:Stainless steel mirror polishing precision casting parts is very difficult, 20
Use the vibrator to polish the material: the high aluminum porcelain 4cm (with a polishing agent that has an automatic mending function), you go find this polish,
Q:How about casting parts for a year?
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:Casting pieces of plastic processing requirements can not fall off the skin,
Steel parts are not familiar. But after spraying, the powder should be divorced from the adhesive force is too low, try to provide the surface roughness of the casting
Q:Why does the precision casting factory not usually make iron castings?
Jiangyin Lin Xing stainless steel (precision manufacturing) Co., Ltd. to provide professional precision casting
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,
Q:What is the reason for 304 stainless steel precision casting parts to be changed?
Steel deformation control is one of the most common problems in the metal processing industry. Any process will occur. The casting is the largest deformation and the least fine. It is generally used to produce blank blanks
Q:Does anyone know how to make precise casting parts for aerospace or manufacturers of single and small quantities of automotive parts and components, mainly in Beijing, Tianjin and Tangshan?
List of China's military enterprises list of ten major military groupsChina Nuclear Industry Construction Group CorporationChina Aerospace Science and Technology CorporationChina Aerospace Science and Engineering CorporationChina Aviation Industry CorporationChina Aviation Industry Corporation IiChina State Shipbuilding CorporationcsicChina North Industries Group CorporationChina South Industries Group CorporationChina National Nuclear CorporationKey military enterprisesShipbuilding industry:China State Shipbuilding Corporation (South ship group), (China Shipping Group)China Shipbuilding Industry Corp (North Ship group), (China Shipbuilding Industry)Guangzhou Shipyard International Limited by Share Ltd (GSI)Jiangnan Heavy Industry Limited by Share Ltd (Jiangnan Heavy Industry)Nuclear industry:China National Nuclear Corporation (CNNC)China Nuclear Industry Construction Group Corporation
Q:What are the design considerations for casting parts?
A: 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:How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.
Yantai five God casting is generally 53 yuan /kg, the appearance is quite beautiful

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