Light cast iron manhole covers

Ref Price:
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
3000套 m.t./month

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Product Description:

Ductile iron QT500 manhole covers


1. Material: QT500-7


Raw material: Q12 class brand


2. The base diameter: 800 mm


3. The base height: 65 mm


4. The cover plate diameter: 700 mm


5. Net openings: 670 mm


6. 42 kg weight:


7. Pressure load: 125 kn B125 12.5 tons


8. Surface treatment: black bituminous paint


9. Chemical and physical composition


10. The quality management system certification: ISO9001:2008


11. I plant products are 90% export, quality guaranteed, smooth surface, the pressure up to standard.


QT500-7


Of the goods

The base diameter

Cover plate diameter

Net openings

highly

The weight of the

Pressure load

The material

Ductile iron manhole cover

Φ 800 mm

Φ 700 mm

Φ 670 mm

60 mm

42 kg

10 tons

QT500-7

Ductile iron manhole cover

Φ 900 mm

Φ 700 mm

Φ 670 mm

75 mm

49 kg

25 tons

QT500-7

Ductile iron manhole cover

Φ 900 mm

Φ 700 mm

Φ 670 mm

75 mm

59 kg

35 tons

QT500-7



Physical property

TENSILE STRENGTHN/m ㎡

YIELD STRENGTH

ELONGATION

HARDNESS

500

320

7%

170-170.



brand

Chemical composition (%)

C

SI

Mn

P

s.

MG

Re

QT500-7

3.6 to 3.8

2.5 to 2.9

< = 0.60

< = 0.08

< = 0.025

0.03 to 0.05

0.03 to 0.05


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