Tabele Tehnice Uzuale

DE DI WT Presiune
50 40 5 630
50.3 40 5.15 645
52 40 6 727
55.3 40 7.65 872
55.3 45 5.15 587
60 50 5 525
60.3 50.8 4.75 496
60.32 50.8 4.76 497
62 50 6 610
63.5 50.8 6.35 630
65.3 50 7.65 738
65 55 5 485
69.85 57.15 6.35 573
70 50 10 900
70 60 5 450
70.3 50 10.15 910
70.3 55 7.65 686
70.3 60 5.15 462
72 60 6 525
73 63 5 432
75 60 7.5 630
75 63 6 504
75 65 5 420
76.2 63.5 6.35 525
78 63 7.5 606
80 60 10 788
80 63 8.5 669
80 70 5 394
80.3 65 7.65 600
82.4 70 6.2 474
82.55 69.85 6.35 485
83 63 10 759
85 70 7.5 556
85 75 5 371
85.3 75 5.15 380
88.9 76.2 6.35 450
90 70 10 700
90 80 5 350
90.4 75 7.7 537
92 80 6 411
95 80 7.5 497
100 80 10 630
100 85 7.5 473
101.6 88.9 6.35 394
102 90 6 371
105 90 7.5 450
110 80 15 859
110 90 10 573
110 95 7.5 430
115 100 7.5 411
120 100 10 525
120 105 7.5 394
125 105 10 504
125 100 12.5 630
125 110 7.5 378
130 100 15 727
130 110 10 485
130 115 7.5 363
135 115 10 467
135 120 7.5 350
140 127 6.5 293
140 110 15 675
140 120 10 450
140 125 7.5 338
145 100 22.5 978
145 120 12.5 543
145 125 10 434
145 130 7.5 326
150 120 15 630
150 125 12.5 525
150 130 10 420
155 140 7.5 305
160 135 12.5 492
160 140 10 394
165 140 12.5 477
165 150 7.5 286
170 140 15 556
170 150 10 371
180 150 15 525
180 160 10 350
185 160 12.5 426
185 165 10 341
190 160 15 497
190 165 12.5 414
190 170 10 332
200 160 20 630
200 170 15 473
200 180 10 315
203 177.8 12.6 391
205 180 12.5 384
210 180 15 450
210 200 5 150
220 200 10 286
230 200 15 411
245 200 22.5 579

Formula de calcul:
p = (20 x S x T) / D
p = presiune maxima [bar]
S = 70% din limita de curgere [N/mm2]
T = grosimea peretelui [mm]
D = diametru exterior [mm]
DE = diametru exterior
DI = diametru interior
WT = grosimea peretelui

Cele mai uzuale tolerante ISO pentru bare si tevi din otel cromate
Toleranta ISO h6 g6 h7 f7 f8
Diametru ext. Ø (mm) Sup .(µm) Inf. (µm) Sup. (µm) Inf. (µm) Sup. (µm) Inf. (µm) Sup. (µm) Inf. (µm) Sup. (µm) Inf. (µm)
3< Ø ≤ 6 0 -8 -4 -12 0 -12 -10 -22 -10 28
6< Ø ≤ 10 0 -9 -5 -14 0 -15 -13 -28 -13 -35
10< Ø ≤18 0 -11 -6 -17 0 -18 -16 -34 -16 -43
18< Ø ≤ 30 0 -13 -7 -20 0 -21 -20 -41 -20 -53
30< Ø ≤ 50 0 -16 -9 -25 0 -25 -25 -50 -25 -64
50< Ø ≤ 80 0 -19 -10 -29 0 -30 -30 -60 -30 -76
80< Ø ≤ 120 0 -22 -12 -34 0 -35 -36 -71 -36 -90
120< Ø ≤ 180 0 -25 -14 -39 0 -40 -43 -83 -43 -106
180< Ø ≤ 250 0 -29 -15 -44 0 -46 -50 -96 -50 -122
Cele mai uzuale tolerante ISO pentru Diametre interioare prelucrate la Tevi
Toleranta ISO H8 H9 H10
DI (mm) Inf. (µm) Sup. (µm) Inf. (µm) Sup. (µm) Inf. (µm) Sup. (µm)
18÷30 0 +33 0 +52 0 +84
30÷50 0 +39 0 +62 0 +100
51÷80 0 +46 0 +74 0 +120
81÷120 0 +54 0 +87 0 +140
121÷180 0 +63 0 +100 0 +160
181÷250 0 +72 0 +115 0 +185
251÷315 0 +81 0 +130 0 +210
316÷400 0 +89 0 +140 0 +230