Ductile Iron Manhole Cover with Heavy Duty of Square or Round

Ductile Iron Manhole Cover with Heavy Duty of Square or Round System 1

Ductile Iron Manhole Cover with Heavy Duty of Square or Round System 2

Ductile Iron Manhole Cover with Heavy Duty of Square or Round System 3

Ductile Iron Manhole Cover with Heavy Duty of Square or Round System 4

Ductile Iron Manhole Cover with Heavy Duty of Square or Round

Ref Price:

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) Material
a) Ductile Iron GGG500-7 & 400-12
b) Grey Iron GG20

2) Designs.
a) EN124 A15, B125, C250, D400, E600 and F900
b) A60005 for casting design
c) Major standards designs available
d) As per customers' drawings or samples
3) Process
c) Molding boards
d) Green sand with hand molding
4) Coating
a) Cold applied black bitumen
b) Without coating
c) Coating as per customers' requirements

Specification

No.	Item No.	Class	Clear Opening(mm)	Frame Size(mm)	Frame Height(mm)	Unit Weight (kg/set)
1	CHB40	B125	310×310	400×400	30	18
2	CHB50	B125	400×400	500×500	40	17
3	CHB60	B125	500×500	600×600	50	26
4	CHB70	B125	600×600	700×700	50	37

Ductile Iron Manhole Cover with Heavy Duty of Square or Round

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. Contain no metal

and no recovery value, anti-theft.

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 Cover with Heavy Duty of Square or Round

Our Services

1. Sample is available for free.

2. OEM and ODM are welcome.

3. Free charge of design labels and cartons.

4. Our products: produced by the hydraulic Press.

Meanwhile, a number of experienced workers do the strictly Quality control and have production tracking program.

5. Our price: we are the factory, we provide the most competitive price with good quality, and

large order quantity will get big support by us!

6. Professional technical support with free charge.

7. After the cooperation: Any of your problem will be solved within 24 hours.

FAQ

1.Q: Are you factory ?
YES!  We are a professional ductile iron & grey iron casting Factory inChina.
2.Q: How long can you make your quotation:
       Within 3 workdays after received your detailed product information
3.Q: Do you provide OEM Service?
      Yes, we provide OEM Service.
4.Q: What 's your quotation element?
  Drawing, material, weight and quantity.

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: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, its surface wear resistance is high; the two is with the gradual wear of surface hardening, the hardening layer is continuously formed new if you have suggestions, processing, plasma cutting or flame cutting try

Q:How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness: Hot galvanizing doesn't seem to workThe zinc layer is 275g/ square meters of material coating is 0.019mm (mm), up to 0.08 thick.

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 are the casting parts used to test shrinkage holes?: 2. x ray. This method can do nondestructive testing, but the cost is higher. Generally, high castings are required.

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. Roughness mainly depends on the surface roughness on the surface of the sand.

Q:Lathe processing stainless steel casting parts to use what type of tool, the speed into the amount of how much tool angle: Processing stainless steel materials, you can use YG class tools, such as YG8, YG8N. The tool geometric parameters g0=15 degrees to 18 degrees, a0=6 degrees to 8 degrees, kr=75 degrees, ls=-5 degrees to -8 degrees; cutting amount is Vc=43 m/min, ap=0.3 to 0.5 mm, f=0.16mm/r.

Q:What are the casting parts processing engineering?: Among them, special casting has metal mould casting, pressure casting, low pressure casting, lost wax casting (also known as precision casting), shell casting, lost foam casting, centrifugal casting, continuous casting, V casting, and clay casting

Q:The casting sand is going on: 2, causes(1) sand mold (core) strength is not high, when the box a little reason will fall off.(2) the strength of sand mould (core) is not high, it can not stand the erosion of molten steel.(3) box sand mould (core) crush.(4) high strength under high temperature, warpage, deformation and protuberance into the cast steel under the action of high temperature molten steel.(5) the floating sand in the air hole of the sand mold falls, especially when the floating sand falls in the casting, and the floating sand on the surface of the sand mold is easy to fall through the air vent.(6) when the box is closed, the surface of the mold cavity and the surface of the sand core are not cleaned, and the sand (core) surface has floating sand and so on.

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

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