Steel Tube Handbook - 2018

76 Inside diameter [mm] Tolerance of inside diameter [mm] D x T [mm] Weight [kg/m] 40 –0,20 / –0,40 50 x 5 52 x 6 55 x 7,5 60 x 10 5,55 6,80 8,78 12,33 45 55 x 5 57 x 6 60 x 7,5 65 x 10 6,16 7,55 9,71 13,56 50 60 x 5 62 x 6 65 x 7,5 70 x 10 6,78 8,28 10,64 14,80 55 –0,20 / –0,50 65 x 5 67 x 6 70 x 7,5 75 x 10 7,40 9,03 11,56 16,03 60 70 x 5 72 x 6 75 x 7,5 80 x 10 8,01 9,77 12,48 17,26 63 73 x 5 75 x 6 78 x 7,5 83 x 10 8,38 10,21 13,04 18,00 65 75 x 5 77 x 6 80 x 7,5 85 x 10 8,64 10,51 13,41 18,50 70 80 x 5 82 x 6 85 x 7,5 90 x 10 9,25 11,25 14,33 19,73 Dimensions and weight of HPZ tubes for mechanical machining Table 32 Inside diameter [mm] Tolerance of inside diameter [mm] D x T [mm] Weight [kg/m] 75 –0,20 / –0,55 85 x 5 87 x 6 90 x 7,5 95 x 10 9,86 11,99 15,26 20,96 80 90 x 5 92 x 6 95 x 7,5 100 x 10 10,48 12,72 16,18 22,20 85 95 x 5 97 x 6 100 x 7,5 105 x 10 11,10 13,46 17,11 23,43 90 –0,25 /–0,70 100 x 5 102 x 6 105 x 7,5 110 x 10 11,71 14,20 18,03 24,66 100 110 x 5 112 x 6 115 x 7,5 120 x 10 12,95 15,68 19,88 27,13 105 –0,25 / –0,75 115 x 5 117 x 6 120 x 7,5 125 x 10 13,56 16,42 20,81 28,36 110 120 x 5 122 x 6 125 x 7,5 130 x 10 14,18 17,16 21,73 29,59 115 125 x 5 127 x 6 130 x 7,5 14,80 17,90 22,66 Upon agreement also tubes with inside diameter 30 mm with T 5 / 6 / 7,5 / 10 mm. Tolerances d acording to agreement. The tube weight according to the formula (see page 4). Chemical composition and mechanical properties of steel for HPZ tubes Delivery condition BKS (+SR) Steel C max % Mn max % Si max % P max % S max % Al min % R eH (N/mm 2 ) R m (N/mm 2 ) A % St 52 0,22 1,60 0,55 0,025 0,025 0,020 min. 420 min. 580 min. 10 E 355 0,22 1,60 0,55 0,025 0,025 0,020 min. 450 min. 580 min. 10 Chemical composition and mechanical properties of steel 11 523 and St 52-3 are approximately identic to steel grades in table. Steel 20 Mn V 6 includes V (0,08 - 0,15%), or a part of V is possible to replace with Nb providing that Vmin is 0,05% and contents V + Nb is under 0,15%.