Cooper (1235-0012)
Material: E-Cu (DIN 1787 / 40500)
Hardness: F25 (medium hardness, upper range)
Maximum Operating Temp.: +200°C. Data also depend on the gasket and the flow medium.
Melting Point: ≈ 1000 °C
Brass
Material: 2.0401
Coating: Nickel-faced
Nickel-faced Parts (ST Drain Fittings)
The main reason for having nickel-faced parts is the corrosion resistance.