Description
Technical specifications
– Pipe : material UNI S355, thickness 4.5 – 5 mm, tensile strength s = 490
– 630 N/mm2, drawn and seamless, painted.
– End assembly : material UNI C40, hot forged and rolled.
– Ball: material UNI C20, case hardened, hardness 52 – 58 HRC, hardened thickness : 0.4 – 0.7 mm.
– Coating : Zinc plated parts Fe / Zn
