الوصف

Features of Yuxuan ductile iron manhole cover:

Good toughness. The impact value is similar to that of medium carbon steel, more than *0 times that of gray iron.

Strong corrosion resistance. In the water spray corrosion test, the amount of corrosion in *0 days is only 1/*0 of that of steel and 1/*0 of that of gray iron. The service life is twice that of gray iron and five times that of ordinary steel.

Good plasticity. The elongation rate is ‰¥7%, which is similar to that of high-carbon steel, while the elongation rate of gray iron materials is zero.

High strength. Tensile strength b‰¥**0MPa, yield strength s‰¥**0MPa, which is the same as low-carbon steel and three times that of gray iron materials.