Rectangle Resin Rainwater Grate

Features:

1. Good toughness. Impact value is similar to medium carbon steel, 10 times more than gray iron.
2. Strong corrosion resistance. Water spray corrosion test, 90 days of corrosion of steel tube is only 1/40, is 1/10 of the gray iron pipe. Service life is 2 times of gray iron pipe, 5 times of ordinary steel pipe.
3. Good plasticity. Elongation ≥7%, similar to high carbon steel, and gray iron material elongation is zero.
4. High intensity. Tensile strength ob ≥420MPa, yield strength OS ≥300MPa, the same as low carbon steel, is three times the gray iron material.