
Tubi in acciaio h9
According with the standard: EN 10305-2; Steel grade: E355; Delivery condition: +C; ID tolerance range: according with ISO H; Roughness on the ID: Ra < 0.8 µm Mechanical properties: Rm > 640 N/mm2 ; Rs > 512 N/mm2; Ap5 > 4%; Tests: visual, dimensional, mechanical test and chemical analysis, ultrasound check 100%.