BN124 round ductile iron manhole cover System 1

BN124 round ductile iron manhole cover

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications

1. ductile iron GGG50/7
2. class: D400
3. standard: EN124
4. this line for 15 years

material	ductile iron GGG50/7, gray iron
standard	EN124/1433/1563
class	A15,B125,C250,D400,E600,F900
shape	Round, square, rectangle, triangle
paint	bituminous black
advantage	longevity resistance, excellent anti-pressure
application	footway, pedestrians, car parks, aircraft pavements
products	Manhole covers and grates,.
other information	we can cast and process any type of iron casting products according to customers' drawing or samples

	We are an ISO9001:2000 certified enterprise in China, specializing in manufacturing of ductile iron manhole cover. Characteristics of our manhole cover: 1. Material: cast gray iron, ductile iron. 2. Shape: round, square, rectangle and triangle. 3. Diameter: from 200mm to 1200mm. 4. Weight: from 7kg to 154kg or according to customers\' requirment 5. Packing: in wooden pallet with plastic layer 6. Annual output: 10,000 tons 7. Coating: black bitumen or Coating as per customers\' requirement 8. Usage:municipal engineering,Traffic, pavement ,electronics,telecom, cable, petroleum, chemical industry, or drainage system and industrial facilities of valve well.

We are an ISO9001:2000 certified enterprise in China, specializing in manufacturing of ductile iron manhole cover.

Characteristics of our manhole cover:

1. Material: cast gray iron, ductile iron.

2. Shape: round, square, rectangle and triangle.

3. Diameter: from 200mm to 1200mm.

4. Weight: from 7kg to 154kg or according to customers\' requirment

5. Packing: in wooden pallet with plastic layer

6. Annual output: 10,000 tons

7. Coating: black bitumen or Coating as per customers\' requirement

8. Usage:municipal engineering,Traffic, pavement ,electronics,telecom, cable, petroleum, chemical industry, or drainage system and industrial facilities of valve well.

Q: Selection of hydraulic press is the casting parts and steel plate welding, how to choose?: Casting parts in one shape, the overall processing in this regard than steel plate welding better. The same price is much more expensive than steel. Large hydraulic presses seldom have casting parts.

Q: What is the reason for 304 stainless steel precision casting parts to be changed?: 304 stainless steel is easier to change than ordinary steel. Because the 304 heat conductivity is lower than that of the low doped steel, the temperature is even more uneven, and 20% of the non ferrous elements also make the distribution of internal and external elements more uneven, hard and soft inside. Each of these two produces greater internal stresses, resulting in a variant.

Q: How can the casting be quenched and tempered?: Another is the result of pre heat treatment (quenching or annealing) after quenching and tempering treatment, suitable for ZG35SiMNMo, ZG35CrMo and so on. Please tell the casting process is your product and material and then set tempered.: shutup:

Q: What is the difference between casting and stamping parts?: The purpose of forming processes is to allow the sheet to undergo plastic deformation without breaking the billet and to make the desired shape and size. In actual production, a variety of processes are often applied to a workpiece. Blanking, bending, shearing, drawing, bulging, spinning and rectification are several main stamping processes. The difference between stamping parts and castings: with thin, uniform, light, strong features, stamping can be produced by other methods difficult to make, with stiffeners, ribs, UPS or flanging of the workpiece, to improve its rigidity. Due to the use of precision molds, the workpiece accuracy up to microns, and repeated high precision, specifications consistent, you can punch out of the hole, lug and so on.

Q: Cause of choking of casting parts: Is it boiling from the picture? Does it sound like a fire? If not, it's not choking. I feel like choking. The gas doesn't drain out

Q: What are the general technical requirements for casting parts?: According to the national standard GB/T 9438, there are 8 aspects: 1. chemical composition; 2. delivery status; 3. mechanical properties; 4. dimensional tolerances; 5. weight tolerances; 6. appearance quality; 7. internal quality; 8. casting salvage.

Q: Can the casting part be phosphating with the phosphating solution of the pickling board?: Like stainless steel casting, duplex stainless steel casting is phosphating, ductile iron gray iron is not required

Q: What reason is the bronze statue choking fire?: The casting process in boiling phenomenon, is the setting of the exhaust hole positioner position or number is not reasonable, the air cavity can not be discharged, overwhelmed by a material inlet, reflux, change mould, sincerely help you look forward to adopt,