SIQUAN Machinery provides a complete line of drill string products, including a full range of jointed drill pipe in nominal sizes from 2-3/8” to 6-5/8” and in a wide range of wall thicknesses. drill pipe with a strict quality control regimen from initial materials selection to final inspection, we ensure that each joint of drill pipe meets your needs for durability and performance.

Size	Weight Designation	Plain-End Weight Wpe		Outside Diameter D		Wall thickness T		Grade	Upset Ends,for weld-on tool joints
		lb/ft	kg/m	in        mm		in.      mm
2 3/8	6.65	6.27	9.33	2.375	60.3	0.28	7.11	E, X, G, S	Ext.Upset
2 7/8	10.4	9.72	14.47	2.875	73	0.362	9.19	E, X, G, S	Int.Upset or Ext.Upset
3 1/2	9.5	8.81	13.12	3.5	88.9	0.254	6.45	E	Int.Upset or Ext.Upset
3 1/2	13.3	12.32	18.34	3.5	88.9	0.368	9.35	E, X, G, S	Int.Upset or Ext.Upset
3 1/2	15.5	14.64	21.79	3.5	88.9	0.449	11.4	E	Int.Upset or Ext.Upset
3 1/2	15.5	14.64	21.79	3.5	88.9	0.449	11.4	X, G, S	Ext.Upset or Int.-Ext.Upset
4	14	12.95	19.27	4	101.6	0.33	8.38	E, X, G, S	Int.Upset or Ext.Upset
4 1/2	13.75	12.25	18.23	4.5	114.3	0.271	6.88	E	Int.Upset or Ext.Upset
4 1/2	16.6	15	22.32	4.5	114.3	0.337	8.56	E, X, G, S	Ext.Upset or Int.-Ext.Upset
4 1/2	20	18.71	27.84	4.5	114.3	0.43	10.92	E, X, G, S	Ext.Upset or Int.-Ext.Upset
5	16.25	14.88	22.16	5	127	0.296	7.52	X, G, S	Int.Upset
5	19.5	17.95	26.7	5	127	0.362	9.19	E	Int.-Ext.Upset
5	19.5	17.95	26.7	5	127	0.362	9.19	X, G, S	Ext.Upset or Int.-Ext.Upset
5	25.6	24.05	35.8	5	127	0.5	12.7	E	Int.-Ext.Upset
5	25.6	24.05	35.8	5	127	0.5	12.7	X, G, S	Ext.Upset or Int.-Ext.Upset
5 1/2	21.9	19.83	29.52	5.5	139.7	0.361	9.17	E, X, G, S	Int.-Ext.Upset
5 1/2	24.7	22.56	33.57	5.5	139.7	0.415	10.54	E, X, G, S	Int.-Ext.Upset
6 5/8	25.2	22.21	33.04	6.625	168.3	0.33	8.38	E, X, G, S	Int.-Ext.Upset
6 5/8	27.72	24.24	36.06	6.625	168.3	0.362	9.19	E, X, G, S	Int.-Ext.Upset