oil casing tube

To date, more and more clients, ranging from China to Japan, Korea, Southeast Asian Nations and part of American and European countries have started to select our products, which have won a good reputation both at home and abroad. We are sure that from pure-hearted cooperation we can establish good relationships. Feel free to contact us, we are sure to satisfy you with our professional information, top quality products, best price, and efficient services. For all details, please never hesitate to contact us. Our company provides the following casing with API Standard.SizeOutside DiameterInside DiameterGrade Wall Thickness in mm in mm in mm 4-1/2 4.500 114.30 4.000 101.60 J55K55N80 0.250 6.35 3.920 99.57 J55K55N80 0.290 7.37 5 5.000 127.00 4.408 111.96 J55K55N80 0.296 7.52 4.276 108.61 N80P110 0.362 9.29 4.126 104.80 N80P110 0.437 11.10 5-1/2 5.500 139.70 4.892 124.26 J55K55N80 0.304 7.72 4.778 121.36 N80 0.361 9.17 4.670 118.62 N80 0.415 10.54 7 7.000 177.80 6.366 161.70 J55K55N80 0.317 8.05 6.276 159.41 J55K55N80 0.362 9.19 6.184 157.07 N80 0.408 10.36 9-5/8 9.625 244.48 8.755 222.38 N80 0.435 11.05 8.681 222.50 N80 0.472 11.99 10-3/4 10.750 273.05 10.050 255.27 H40 J55K55N80 0.350 8.89 9.850 250.19 J55K55N80 0.450 11.43 13-3/8 13.375 339.72 12.615 320.42 J55K55 0.380 9.65 12.415 315.34 J55K55N80 0.480 12.19