Pipe body: 45 Mn2, seamless pipe
Flange: outer protective layer ST52, inner wear-resistant layer Cr18.
Casting process, as long as the service life of the pipe body
Size:5",thickness 4.5mm, 4.8mm(5mm), 7.1mm, 9.17mm
Welding: automatic welding to ensure no leakage or paint holes, and the welding joint strength is 460BAR
Test: Water pressure test 260BAR, 24 hours, no leakage or cracking
Flange: 20# steel original pipe machined Flange: SK148/HD157/SY157/PM ZX175/FM165
Surface treatment: Baking paint Service life: 25,000-30,000m³---Around 30,000m³(depends on different concrete material of different regions)
Induction hardened + tempering: hardness after quenching >HRC 67, hardness after tempering (eliminating internal stress) HRC 63-65
Inner surface hardness: Up to 67
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