化学成分

标准	牌号	化学成分(％)								CEV(％)
		C	Si	Mn	P	S	V	Nb	Ti
API SPEC 5L GB/T9711.2	B	≤0.16	≤0.40	≤1.10	≤0.020	≤0.010	－	－	－	≤0.42
	X42	≤0.17	≤0.40	≤1.20	≤0.020	≤0.010	≤0.05	≤0.05	≤0.04	≤0.42
	X52	≤0.20	≤0.45	≤1.60	≤0.020	≤0.010	≤0.10	≤0.05	≤0.04	≤0.45
	X60	≤0.21	≤0.45	≤1.60	≤0.020	≤0.010	≤0.15	≤0.05	≤0.04	协议
	X65	≤0.16	≤0.45	≤1.60	≤0.020	≤0.010	≤0.06	≤0.05	≤0.06	≤0.45
	X70	≤0.16	≤0.45	≤1.70	≤0.020	≤0.010	≤0.06	≤0.05	≤0.06	≤0.45

API SPEC 5L管线管产品规格表

名义 尺寸	外径 D		壁厚 T		计算重量
					平端		带螺纹和接箍
	in	mm	in	mm	lb/ft	kg/m	lb	kg
2-3/8	2.375	60.3	0.154	3.9	3.66	5.42	1.20	0.54
	2.375	60.3	0.218	5.5	5.03	7.43	1.09	0.50
2-7/8	2.875	73.0	0.203	5.2	5.80	8.69	1.80	0.82
	2.875	73.0	0.276	7.0	7.67	11.39	1.57	0.71
3-1/2	3.500	88.9	0.216	5.5	7.58	11.31	1.80	0.82
	3.500	88.9	0.300	7.6	10.26	15.24	1.76	0.80
4	4.000	101.6	0.226	5.7	9.12	13.48	3.20	1.45
	4.000	101.6	0.318	8.1	12.52	18.68	3.00	1.36
4-1/2	4.500	114.3	0.237	6.0	10.80	16.02	4.40	2.00
	4.500	114.3	0.337	8.6	15.00	22.42	3.99	1.81
5-9/16	5.563	141.3	0.258	6.6	14.63	21.92	5.60	2.54
	5.563	141.3	0.375	9.5	20.80	30.88	4.94	2.44
6-5/8	6.625	168.3	0.280	7.1	18.99	28.22	7.20	3.27
	6.625	168.3	0.432	11.0	28.60	42.67	5.65	2.56
8-5/8	8.625	219.1	0.277	7.0	24.72	36.61	14.80	6.72
	8.625	219.1	0.322	8.2	28.58	42.65	14.00	6.36
	8.625	219.1	0.500	12.7	43.43	64.64	11.74	5.20
10-3/4	10.750	273.1	0.279	7.1	31.23	46.57	20.00	9.08
	10.750	273.1	0.307	7.8	34.27	51.03	19.20	8.72
	10.750	273.1	0.365	9.3	40.52	60.50	17.40	7.90
	10.750	273.1	0.500	12.7	54.79	81.55	15.32	6.95