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DUCTILE IRON WELL COVER OF MAIN FEATURES
Calibrate
IS01083:1987[E]QT500-7A
Peculiarity
1、 High strength: Tensile strength ó b≥420MPa,Yieid strength ó s≥300MPa,the properties is the same to low carbon steel, and 3 times to gray iron materials.
2、Good toughness: The impact value is same to mid-carbon steel and 10 times over to gray iron mate rials.
3、Good plasticiey: The elongation rate ó≥7%,it is similar to high carbon steel but gray cast iron elongation is close to zero.
4、Strong Anti-corrosion: The spary water corrosion test shown that its corrosion rate is only 1/40 of the steel pipes, 1/10 of the gray iron pipes. Its use life is 2 times to gray iron pipe, 5 times to common steel pipe.
scale: Φ900mm×80mm
　 weight: 135kg pressure: 400KN
scale: Φ800mm×80mm
　 weight: 90kg pressure: 400KN
scale: Φ750mm×75mm
　 weight: 75kg pressure: 400KN
scale: Φ700mm×75mm
　 weight: 70kg pressure: 400KN
scale: Φ700mm×70mm
　 weight: 60kg pressure: 300KN
scale: Φ700mm×60mm
　 weight: 50kg pressure: 200KN
scale: Φ650mm×60mm
　 weight: 45kg pressure: 250KN
scale: Φ600mm×60mm
　 weight: 35kg pressure: 250KN
scale: Φ500mm×50mm
　 weight: 40kg pressure: 300KN
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