1. Composition of raw material:
l C: 3.4 - 3.7%
l Si: 2.0 - 2.4%
l P: ≤0.08%
l S: ≤0.015%
l Mg: 0.03 - 0.08%
l Mn: ≤0.30%
Average Density of Metal is approximate 7050kg/m
2. Mechanical Properties
Item | Tensile Strength N/mm2 | Elongation % | Proof Stress N/mm2 | Hardness HB | ||
DN80 to DN2000 | DN80 to DN1000 | DN1100 to DN2000 | DN80 to DN1000 | DN1100 to DN2000 | ||
Fittings | ≥420 | ≥5 | ≥300 | ≤230 | ||
3. Works Test Pressure
DN | Minimum hydraulic test pressure (bar) |
Fittings | |
60 to 300 | 25 |
350 to 600 | 16 |
700 to 1000 | 10 |
1100 to 2000 | 10 |
