(4) The thread surface of the casing and coupling should be smooth, and no burrs, tears or other defects sufficient to interrupt the threads will affect the strength and tight connection.
outer diameter |
theoretical weight |
wall thickness |
inside diameter |
nominal diameter |
Coupling outer diameter |
Thread type |
Steel grade |
length |
139.7 (5-1/2) |
20.85(0.244) 23.09(15.50) 25.32(17.00) 29.79(20.00) 34.26(23.00) |
6.20(0.244) 6.98(0.275) 7.72(0.304) 9.17(0.361) 10.54(0.415) |
127.3(5.012) 125.7(4.950) 124.3(4.892) 121.4(4.778) 118.6(4.670) |
124.1(4.887) 122.6(4.825) 121.1(4.767) 118.2(4.653) 115.4(4.545) |
153.7 (6.050) |
Round thread, trapezoidal thread |
j55 n80 p110 |
8m-12m (2602-39.4) |
177.8 (7) |
25.52917.00) 29.79(20.00) 34.26(23.00) 38.73(26.00) 43.20(29.00) 47.66(32.00) 52.13(35.00) 56.60(38.00) |
5.87(0.231) 6.91(0.272) 8.05(0.317) 9.19(0.362) 10.36(0.408) 11.51(0.453) 12.65(0.498) 13.72(0.540) |
166.1(6.538) 164.2(6.456) 161.7(6.366) 159.4(6.276) 157.1(6.180) 154.8(6.090) 152.5(6.004) 150.4(5.430) |
162.9(6.413) 160.8(6.331) 158.5(6.204) 156.2(6.151) 153.9(6.059) 151.6(5.969) 149.3(5.879) 147.2(5.795) |
194.5 (7.656) |
Round thread, trapezoidal thread |
j55 n80 p110 |
8m-12m (2602-39.4) |
219.1 (8-5/8) |
35.75(24.00) 41.71(28.00) 47.66(32.00) 53.62(36.00) 59.58(40.00) |
6.71(0.264) 7.72(0.304) 8.94(0.352) 10.16(0.400) 11.43(0.450) |
205.7(8.093) 203.7(8.020) 201.2(7.927) 198.8(7.827) 196.2(7.724) |
202.5(7.972) 200.5(7.894) 198.0(7.795) 195.6(7.701) 193.0(7.598) |
244.5 (9.625) |
Round thread, trapezoidal thread |
j55 n80 p110 |
8m-12m (2602-39.4) |
244.5 (9-5/8) |
48.11(32.30) 53.62(36.00) 59.58(40.00) 64.79(43.50) 70.01(47.00) 71.69(53.50) |
7.92(0.312) 8.94(0.352) 10.03(0.395) 11.05(0.435) 11.99(0.472) 13.84(0.545) |
228.7(9.001) 226.6(8.921) 224.4(8.835) 222.4(8.755) 220.5(8.681) 216.8(8.535) |
244.7(8.845) 222.6(8.765) 220.4(8.679) 218.4(8.599) 216.5(8.525) 212.8(8.379) |
269.6 (10.6250 |
Round thread, trapezoidal thread |
j55 n80 p110 |
8m-12m (2602-39.4) |
273.0 (10-3/4) |
48.78(32.75) 60.32(40.50) 67.77(45.50) 75.96(51.00) 82.67(55.50) |
7.09(0.279) 8.89(0.350) 10.26(0.400) 11.43(0.450) 12.57(0.495) |
258.9(10.192) 255.3(10.050) 252.7(9.950) 250.2(9.850) 247.9(9.760) |
254.9(10.035) 251.3(9.894) 248.8(9.794) 246.2(9.694) 243.9(9.604) |
298.5 (11.752) |
Round thread, trapezoidal thread |
j55 n80 p110 |
8m-12m (2602-39.4) |
339.7 (13-3/8) |
71.50(48.00) 81.18(54.50) 90.86(61.00) 101.69(68.00) |
8.38(0.330) 9.65(0.380) 10.92(0.430) 12.19(0.480) |
322.9(12.715) 320.4(12.615) 317.9(12.515) 315.3(12.415) |
319.0(12.559) 316.5(12.459) 313.9(12.359) 311.4(12.259) |
365.1 (14.374) |
Round thread, trapezoidal thread |
j55 n80 p110 |
8m-12m (2602-39.4) |
73.0 (2-7/8) |
9.53(6.40) 11.62(7.90) 12.81(8.60) |
5.51(0217) 7.01(0.276) 7.82(0.308) |
62.00(2.441) 59.00(2.323) 57.40(2.259) |
59.61(2.347) 56.62(2.229) 54.99(2.165) |
88.9 (3.500) |
Round thread |
j55 n80 |
8.5m-9.5m (27.9-31.2) |
88.9 (3-1/2) |
11.47(7.70) 15.19(10.20) |
5.49(0.216) 7.34(0.289) |
77.9(3.067) 76.0(2.992) |
24.25(2.943) 21.04(2.797) |
107.95 (4.250) |
Round thread |
j55 n80 |
8.5m-9.5m (27.9-31.2) |
114.3 (4-1/2) |
18.77(12.60) |
6.88(0.271) |
100.5(3.957) |
97.37(3.833) |
132.08 (5.200) |
Round thread |
j55 n80 |
8.5m-9.5m (27.9-31) |