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| Grado |
Res. a la tensión (lb/plg2) min. |
Lim. Elástico (lb/plg2) min. |
Elongación % |
Reducción |
Dureza Máx. |
| B7 |
125,000 |
105,00 |
16 |
50 |
321H o 35HRC |
| B7M |
100,000 |
80,000 |
18 |
50 |
235HB o 99HRB |
| B16 |
125,000 |
105,00 |
18 |
50 |
321H o 35HRC |
| B8, B8M |
75,000 |
30,000 |
30 |
50 |
321HB o 96HRB |
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| Identificación |
B7, B7M |
B16 |
B8 |
B8M |
| Grado AISI |
AISI 4140 |
Cromo Molibdeno Vanadio |
AISI 304 |
AISI 316 |
| Carbón |
0.37 - 0.49 |
0.36 - 0.4 |
0.08 max. |
0.08 max. |
| Manganeso |
0.65 - 1.10 |
0.45 - 0.70 |
2.00 max |
2.00 max |
| Fosforo Max. |
0.035 |
0.035 |
0.045 |
0.045 |
| Azufre Max. |
0.04 |
0.04 |
0.03 |
0.03 |
| Silicio |
0.15 - 0.35 |
0.15 - 0.35 |
1.00 max |
1.00 max |
| Cromo |
0.75 - 1.20 |
0.80 - 1.15 |
18.00 - 20.00 |
16.00 - 18.00 |
| Molibdeno |
0.15 - 0.25 |
0.50 - 0.65 |
-- |
2.00 - 3.00 |
| Vanadio |
-- |
0.25 - 0.35 |
-- |
-- |
| Niquel |
-- |
-- |
8.00 - 10.50 |
10.00 - 14.00 |
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| Acero Carbón ASTM A-194 GR. 2H - 2HM - 3 - 4 - 6 - 7 - 7M - 16 dimensiones ASME B18.22 |
| Diametro / Longitud |
3/8 |
1/2 |
5/8 |
3/4 |
7/8 |
1 |
1 1/8 |
1 1/4 |
1 3/8 |
1 1/2 |
1 5/8 |
1 3/4 |
1 7/8 |
2 |
2 1/4 |
2 1/2 |
| D. Ext. Tuerca "F" |
11/16" |
7/8" |
1-1/16" |
1-1/4" |
1-7/16" |
1-5/8" |
1-13/16 |
2" |
2-3/16" |
2-3/8" |
2-9/16" |
2-3/4" |
2-15/16" |
3-1/8" |
3-1/2" |
3-7/8" |
| Altura Tuerca "H" |
0.36 |
0.48 |
0.61 |
0.73 |
0.86 |
0.98 |
1.11 |
1.22 |
1.34 |
1.47 |
1.59 |
1.72 |
1.84 |
1.97 |
2.20 |
2.45 |
| Peso Tuerca KG. |
0.02 |
0.03 |
0.05 |
0.08 |
0.12 |
0.18 |
0.25 |
0.33 |
0.44 |
0.54 |
0.68 |
0.87 |
1.05 |
1.28 |
1.81 |
2.50 |
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| Acero Carbón ASTM A-193 GR. B6 - B7 - B8 - B16 - Sin tuercas - Peso calculado en kilogramos |
| Diametro / Longitud |
3/8 |
1/2 |
5/8 |
3/4 |
7/8 |
1 |
1 1/8 |
1 1/4 |
1 3/8 |
1 1/2 |
1 5/8 |
1 3/4 |
1 7/8 |
2 |
2 1/4 |
2 1/2 |
| 1 |
0.01 |
0.02 |
0.03 |
0.05 |
0.06 |
0.08 |
0.11 |
0.14 |
0.17 |
0.20 |
0.24 |
0.28 |
0.32 |
0.37 |
0.47 |
0.59 |
| 1 1/2 |
0.02 |
0.03 |
0.05 |
0.07 |
0.10 |
0.13 |
0.16 |
0.20 |
0.25 |
0.30 |
0.36 |
0.42 |
0.48 |
0.55 |
0.71 |
0.88 |
| 2 |
0.02 |
0.04 |
0.06 |
0.09 |
0.13 |
0.17 |
0.22 |
0.27 |
0.33 |
0.40 |
0.48 |
0.55 |
0.64 |
0.73 |
0.94 |
1.17 |
| 2 1/2 |
0.03 |
0.05 |
0.08 |
0.12 |
0.16 |
0.21 |
0.27 |
0.34 |
0.42 |
0.50 |
0.60 |
0.69 |
0.80 |
0.92 |
1.18 |
1.47 |
| 3 |
0.03 |
0.06 |
0.10 |
0.14 |
0.19 |
0.25 |
0.33 |
0.41 |
0.50 |
0.60 |
0.71 |
0.83 |
0.96 |
1.10 |
1.41 |
1.76 |
| 3 1/2 |
0.04 |
0.07 |
0.11 |
0.16 |
0.22 |
0.29 |
0.38 |
0.48 |
0.58 |
0.70 |
0.83 |
0.97 |
1.12 |
1.29 |
1.65 |
2.05 |
| 4 |
0.04 |
0.08 |
0.13 |
0.19 |
0.26 |
0.33 |
0.43 |
0.54 |
0.67 |
0.80 |
0.95 |
1.11 |
1.28 |
1.47 |
1.88 |
2.35 |
| 4 1/2 |
0.05 |
0.09 |
0.14 |
0.21 |
0.29 |
0.38 |
0.49 |
0.61 |
0.75 |
0.90 |
1.07 |
1.25 |
1.44 |
1.65 |
2.12 |
2.64 |
| 5 |
0.06 |
0.10 |
0.16 |
0.23 |
0.32 |
0.42 |
0.54 |
0.68 |
0.83 |
1.00 |
1.19 |
1.38 |
1.60 |
1.84 |
2.35 |
2.93 |
| 5 1/2 |
0.06 |
0.11 |
0.17 |
0.26 |
0.35 |
0.46 |
0.60 |
0.75 |
0.91 |
1.10 |
1.31 |
1.52 |
1.76 |
2.02 |
2.59 |
3.23 |
| 6 |
0.07 |
0.12 |
0.19 |
0.28 |
0.39 |
0.50 |
0.65 |
0.82 |
1.00 |
1.20 |
1.43 |
1.66 |
1.92 |
2.20 |
2.82 |
3.52 |
| 6 1/2 |
0.07 |
0.13 |
0.21 |
0.30 |
0.42 |
0.54 |
0.71 |
0.88 |
1.08 |
1.30 |
1.55 |
1.80 |
2.08 |
2.39 |
3.06 |
3.81 |
| 7 |
0.08 |
0.14 |
0.22 |
0.33 |
0.45 |
0.59 |
0.76 |
0.96 |
1.16 |
1.40 |
1.67 |
1.94 |
2.24 |
2.57 |
3.29 |
4.11 |
| 7 1/4 |
0.08 |
0.14 |
0.23 |
0.34 |
0.47 |
0.61 |
0.79 |
0.99 |
1.21 |
1.45 |
1.73 |
2.01 |
2.32 |
2.66 |
3.41 |
4.25 |
| 7 1/2 |
0.08 |
0.15 |
0.24 |
0.35 |
0.48 |
0.63 |
0.82 |
1.02 |
1.25 |
1.50 |
1.79 |
2.08 |
2.40 |
2.75 |
3.53 |
4.40 |
| 7 3/4 |
0.09 |
0.15 |
0.25 |
0.36 |
0.50 |
0.65 |
0.84 |
1.05 |
1.29 |
1.55 |
1.85 |
2.15 |
2.48 |
2.85 |
3.64 |
4.55 |
| 8 |
0.09 |
0.16 |
0.25 |
0.37 |
0.51 |
0.67 |
0.87 |
1.09 |
1.33 |
1.60 |
1.91 |
2.21 |
2.56 |
2.94 |
3.76 |
4.69 |
| 8 1/4 |
0.09 |
0.16 |
0.26 |
0.39 |
0.53 |
0.69 |
0.90 |
1.12 |
1.37 |
1.65 |
1.96 |
2.28 |
2.64 |
3.03 |
3.88 |
4.84 |
| 8 1/2 |
0.09 |
0.17 |
0.27 |
0.40 |
0.55 |
0.71 |
0.92 |
1.16 |
1.41 |
1.70 |
2.02 |
2.35 |
2.72 |
3.12 |
4.00 |
4.99 |
| 8 3/4 |
0.10 |
0.17 |
0.28 |
0.41 |
0.56 |
0.73 |
0.95 |
1.19 |
1.46 |
1.75 |
2.08 |
2.42 |
2.80 |
3.21 |
4.11 |
4.13 |
| 9 |
0.10 |
0.18 |
0.29 |
0.42 |
0.58 |
0.75 |
0.98 |
1.22 |
1.50 |
1.80 |
2.14 |
2.49 |
2.88 |
3.30 |
4.23 |
5.28 |
| 9 1/4 |
0.10 |
0.18 |
0.29 |
0.43 |
0.59 |
0.77 |
1.01 |
1.26 |
1.54 |
1.85 |
2.20 |
2.56 |
2.96 |
3.40 |
4.35 |
5.43 |
| 9 1/2 |
0.11 |
0.19 |
0.30 |
0.44 |
0.61 |
0.80 |
1.03 |
1.29 |
1.58 |
1.90 |
2.26 |
2.63 |
3.04 |
3.49 |
4.47 |
5.57 |
| 10 |
0.11 |
0.20 |
0.32 |
0.47 |
0.64 |
0.84 |
1.09 |
1.36 |
1.66 |
2.00 |
2.38 |
2.77 |
3.20 |
3.67 |
4.70 |
5.87 |
| 10 1/2 |
0.12 |
0.21 |
0.33 |
0.49 |
0.67 |
0.88 |
1.14 |
1.43 |
1.75 |
2.10 |
2.50 |
2.91 |
3.36 |
3.86 |
4.94 |
6.16 |
| 11 |
0.12 |
0.22 |
0.35 |
0.51 |
0.71 |
0.92 |
1.20 |
1.50 |
1.83 |
2.20 |
2.62 |
3.05 |
3.52 |
4.04 |
5.17 |
6.45 |
| 11 1/2 |
0.13 |
0.23 |
0.37 |
0.54 |
0.74 |
0.96 |
1.25 |
1.56 |
1.91 |
2.30 |
2.74 |
3.18 |
3.68 |
4.22 |
5.41 |
6.74 |
| 12 |
0.13 |
0.24 |
0.38 |
0.56 |
0.77 |
1.00 |
1.30 |
1.63 |
2.00 |
2.40 |
2.86 |
3.32 |
3.84 |
4.41 |
5.64 |
7.04 |
| 12 1/2 |
0.14 |
0.25 |
0.40 |
0.58 |
0.80 |
1.05 |
1.36 |
1.70 |
2.08 |
2.50 |
2.98 |
3.46 |
4.00 |
4.59 |
5.88 |
7.33 |
| 13 |
0.14 |
0.26 |
0.41 |
0.61 |
0.84 |
1.09 |
1.41 |
1.77 |
2.16 |
2.60 |
3.10 |
3.60 |
4.16 |
4.77 |
6.11 |
7.63 |
| 13 1/2 |
0.15 |
0.27 |
0.43 |
0.63 |
0.87 |
1.13 |
1.47 |
1.84 |
2.25 |
2.70 |
3.22 |
3.74 |
4.32 |
4.96 |
6.35 |
7.92 |
| 14 |
0.16 |
0.28 |
0.44 |
0.65 |
0.90 |
1.17 |
1.52 |
1.91 |
2.33 |
2.81 |
3.33 |
3.88 |
4.48 |
5.14 |
6.58 |
8.21 |
| 14 1/2 |
0.16 |
0.29 |
0.46 |
0.68 |
0.93 |
1.21 |
1.58 |
1.97 |
2.41 |
2.91 |
3.45 |
4.01 |
4.64 |
5.32 |
6.82 |
8.51 |
| 15 |
0.17 |
0.30 |
0.48 |
0.70 |
0.96 |
1.26 |
1.63 |
2.04 |
2.50 |
3.01 |
3.57 |
4.15 |
4.80 |
5.51 |
7.05 |
8.80 |
| 15 1/2 |
0.17 |
0.31 |
0.49 |
0.72 |
1.00 |
1.30 |
1.68 |
2.11 |
2.58 |
3.11 |
3.69 |
4.29 |
4.96 |
5.69 |
7.29 |
9.09 |
| 16 |
0.18 |
0.32 |
0.51 |
0.75 |
1.03 |
1.34 |
1.74 |
2.18 |
2.66 |
3.21 |
3.81 |
4.43 |
5.12 |
5.88 |
7.52 |
9.39 |
| 16 1/2 |
0.18 |
0.33 |
0.52 |
0.77 |
1.06 |
1.38 |
1.79 |
2.25 |
2.74 |
3.31 |
3.93 |
4.57 |
5.28 |
6.06 |
7.76 |
9.68 |
| 17 |
0.19 |
0.34 |
0.54 |
0.79 |
1.09 |
1.42 |
1.85 |
2.31 |
2.83 |
3.41 |
4.05 |
4.71 |
5.44 |
6.24 |
7.99 |
9.97 |
| 17 1/2 |
0.19 |
0.35 |
0.56 |
0.82 |
1.12 |
1.47 |
1.90 |
2.38 |
2.91 |
3.51 |
4.17 |
4.85 |
5.60 |
6.43 |
8.23 |
10.3 |
| 18 |
0.20 |
0.36 |
0.57 |
0.84 |
1.16 |
1.51 |
1.96 |
2.45 |
2.99 |
3.61 |
4.29 |
4.98 |
5.76 |
6.61 |
8.46 |
10.6 |
| 18 1/2 |
0.21 |
0.37 |
0.59 |
0.86 |
1.19 |
1.55 |
2.01 |
2.52 |
3.08 |
3.71 |
4.41 |
5.12 |
5.92 |
6.79 |
8.70 |
10.9 |
| 19 |
0.21 |
0.38 |
0.60 |
0.89 |
1.22 |
1.59 |
2.06 |
2.59 |
3.16 |
3.81 |
4.52 |
5.26 |
6.08 |
6.98 |
8.93 |
11.1 |
| 19 1/2 |
0.22 |
0.39 |
0.62 |
0.91 |
1.25 |
1.63 |
2.12 |
2.65 |
3.24 |
3.91 |
4.64 |
5.40 |
6.24 |
7.16 |
9.17 |
11.4 |
| 20 |
0.22 |
0.40 |
0.64 |
0.93 |
1.29 |
1.67 |
2.17 |
2.72 |
3.33 |
4.01 |
4.76 |
5.54 |
6.40 |
7.34 |
9.40 |
11.7 |
