Line Pipe (Spiral Submerged Arc Welded Pipe)

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Spiral Submerged Arc Welded Pipe for Oil & Gas Transporting

Standards
1. GB/T9711-2011 (equivalent to ISO3183:2007): Steel pipes for pipelines transportation systems in petroleum and natural gas industries
2. API Spec 5L (45th Edition): Specification for line pipes
3. SY/T5037-2012:SSAW pipes for low pressure fluid transportation

Line Pipe (Spiral Submerged Arc Welded Pipe)

Applications
The spiral submerged arc welded pipes are ideal line pipes used for transporting water, gas and oil in petroleum and natural gas industries.

Steel Grades
S235, S355, SS400, SM490;
L245, L290, L320, L360,L390, L415, L450,L485, L555;
B, X42, X46, X52, X56, X60, X65, X70, X80, X90,X100, X120;
L245M, L245M, L290M, L320M, L360M, L390M, L415M, L450M, L485M, L555M, L625M, L690M, L830M

Technical Specifications of the Line Pipe

O.D. (Inch & mm)		Wall Thickness (Inch & mm)
		inch	0.20	0.24	0.28	0.31	0.35	0.39	0.43	0.47	0.51	0.55	0.59	0.63	0.67	0.71	0.75	0.79
		mm	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
8 5/8	219.1	26.40	31.53	36.61	41.65	46.63	51.57	56.45
10 3/4	273.1	33.06	39.52	45.94	52.30	58.62	64.88	71.10
12 3/4	323.9	39.32	47.04	54.71	62.32	69.89	77.41	84.88
14	355.6	43.23	51.73	60.18	68.58	76.93	85.23	93.48
16	406.4	49.50	59.25	68.95	78.60	88.20	97.76	107.26
18	457	55.73	66.73	77.68	88.58	99.44	110.24	120.99	131.69
20	508	62.02	74.28	86.49	98.65	110.75	122.81	134.82	146.79
22	559	68.31	81.83	95.29	108.71	122.07	135.39	148.66	161.88
24	610		89.37	104.10	118.77	133.39	147.97	162.49	176.97	191.40
26	660		96.77	112.73	128.63	144.49	160.30	176.06	191.77	207.43
28	711		104.32	121.53	138.70	155.81	172.88	189.89	206.86	223.78
32	813		119.41	139.14	158.82	178.45	198.03	217.56	237.05	256.48	275.86
36	914		134.36	156.58	178.75	200.87	222.94	244.96	266.94	288.86	310.73
40	1016		149.45	174.18	198.87	223.51	248.09	272.63	297.12	321.56	345.95
44	1118		164.54	191.79	218.99	246.15	273.25	300.30	327.31	354.26	381.17	408.02	434.83
48	1219		179.49	209.23	238.92	268.56	298.16	327.70	357.20	386.64	416.04	445.39	474.68
56	1422			244.27	278.97	313.62	348.22	382.77	417.27	451.72	486.13	520.48	554.79	589.04	623.25
64	1626			279.49	319.22	358.90	398.53	438.11	477.64	517.13	556.56	595.95	635.28	674.57	713.80
68	1727				339.14	381.32	423.44	465.51	507.53	549.51	591.43	633.31	675.13	716.91	758.64	800.31	841.94
72	1829				359.27	403.96	448.59	493.18	537.72	582.21	626.65	671.04	715.38	759.67	803.92	848.11	892.25

Main Technical Indexes (Unit: mm (in))

Outside Diameter /mm	Allowable deviation of outside diameter /mm (in)		Out-of-roundness /mm (in)
Outside Diameter /mm	Pipe body	Pipe end (Within 100mm to the pipe end)	Out-of-roundness /mm (in)
219.1≤D≤610	±0.0075DMax.: ±3.2 (0.125)	±0.005DMax.:±1.6 (0.063)	0.015D
610 ＜ D≤1422	±0.005DMax.: ±4.0 (0.160)	±1.6 (0.063)	D/T≤75, 0.01D, 13 (max.); D/T ＞ 75, According to agreement
1422 ＜ D	According to mutual agreement

Wall thickness	Allowable deviation of wall thickness
T ≤5.0 (0.197)	±0.5 (0.020)
5.0 (0.197)＜ T ＜ 15.0 (0.591)	±0.1T
15.0 (0.591) ≤ T	±1.5 (0.060)
1. If the minus deviation of wall thickness regulated in contract is less than the value in this table, plus deviation should be added by some to ensure the right deviation range. 2. Plus deviation of wall thickness is not suitable for weld joint area

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