SSAW Steel Pipe

SSAW Welded Pipes Manufacturer-Datang

SSAW steel pipe (spiral submerged arc welded steel pipe) is formed by spiral bending of hot-rolled strip steel, and spiral seam steel pipe (also called spiral welded pipe, spiral pipe spiral steel pipe) is formed by automatic welding of submerged arc for inner and outer joints.

SSAW Steel Pipes Materials / Grades

Carbon Structural Steel: Q235A, Q235B
Quality Carbon Structural Steel: 10#, 20#
Low-Alloy High-Strength Steel: Q345 (16Mn)
Pipeline Steel (API 5L / GB/T 9711):
- L245 (Grade B), L290 (X42), L320 (X46), L360 (X52), L390 (X56), L415 (X60), L450 (X65), L485 (X70), L555 (X80)
- L290NB/MB (X42N/M), L360NB/MB (X52N/M), L390NB/MB (X56N/M), L415NB/MB (X60N/M), L450MB (X65M), L485MB (X70M), L555MB (X80M)

SSAW Steel Pipe Applications

Spiral steel pipes are mainly used in water supply engineering, the petrochemical industry, the chemical industry, the power industry, agricultural irrigation, and urban construction. They are one of the 20 key products developed in China.

Liquid Transportation: Water supply, drainage, and petroleum/oil transport.
Gas Transportation: Coal gas, steam, liquefied petroleum gas (LPG), and natural gas.
Structural Use: Piling pipes, bridges, docks, roads, and structural piping for construction.

SSAW Steel Pipes Nominal Outer Diameter, Nominal Wall Thickness, and Unit Length Mass

Nominal Outside Diameter		Nominal Wall Thickness
mm	in	6	7	8	9	10	11	12	13	14	15	16	18	20	22
219.1	8-5/8	31.53	36.61	41.65
273.1	10-3/4	39.52	45.94	52.30
323.9	12-3/4	47.04	54.71	62.32	69.89	77.41
(325)		47.20	54.90	62.54	70.14	77.68
355.6	14	51.73	60.18	68.58	76.93	85.23
(377.0)		54.89	63.87	72.80	81.67	90.50
406.4	16	59.25	68.95	78.60	88.20	97.76	107.26	116.72
(426.0)		62.41	72.33	82.46	92.55	102.59	112.58	122.51
457	18	66.73	77.68	88.58	99.44	110.24	120.99	131.69
(478.0)		69.84	81.30	92.72	104.09	115.41	126.69	137.90
508.0	20	74.28	86.49	98.65	110.75	122.81	134.82	146.79	158.69	170.56
(529.0)		77.38	90.11	102.78	115.40	127.99	140.52	152.99	165.43	177.80
559.0	22	81.82	95.29	108.70	122.07	135.38	148.65	161.88	175.04	188.17
610.0	24	89.37	104.10	118.77	133.39	147.97	162.48	176.97	191.40	205.78
(630.0)		92.33	107.54	122.71	137.83	152.90	167.92	182.89	197.81	212.68
660.0	26	96.77	112.73	128.63	144.48	160.30	176.05	191.77	207.43	223.04
711.0	28	104.32	121.53	138.70	155.81	172.88	189.89	206.86	223.78	240.65	257.47	274.24
(720.0)		105.65	123.09	140.47	157.81	175.10	192.34	209.52	226.66	243.75	260.80	277.79
762.0	30	111.86	130.34	148.76	167.13	185.45	203.73	221.95	240.13	258.26	276.33	294.36
813.0	32	119.41	139.14	158.82	178.45	198.03	217.56	237.05	256.48	275.86	295.20	314.48
(820.0)		120.45	140.35	160.20	180.00	199.76	219.46	239.12	258.72	278.28	297.79	317.25
864.0	34		147.94	168.88	189.77	210.61	231.40	252.14	272.83	293.48	314.06	334.61
914.0	39			178.75	200.87	222.94	244.96	266.94	288.86	310.73	332.56	354.34
(920.0)				179.93	202.20	224.42	246.59	268.70	290.78	312.79	334.78	356.68
965.0	38			188.81	212.19	235.52	258.80	282.03	305.21	328.34	351.43	374.46
1016.0	40			198.87	223.51	248.09	272.63	297.12	321.56	345.95	370.29	394.58	443.02
(1020.0)				199.66	224.39	249.08	273.72	298.31	322.84	347.33	371.77	396.16	444.77
1067.0	42			208.93	234.83	260.67	286.47	312.21	337.91	363.56	389.16	414.71	465.66
1118.0	44			218.99	246.15	273.25	300.30	327.31	354.26	371.17	408.02	434.83	488.30
1168.0	46			228.86	257.24	285.58	313.87	342.10	370.29	398.43	426.52	454.56	510.49
1219.0	48			238.92	268.56	298.16	327.70	357.20	386.64	416.04	445.39	474.68	553.13
(1220.0)				239.12	268.79	298.40	327.97	357.49	386.96	416.38	445.76	475.08	533.58
1321.0	52				291.20	323.31	327.97	387.38	419.34	451.26	483.12	514.93	578.41
(1420.0)						347.72	355.37	416.66	451.08	485.41	519.74	553.96	622.32	690.52
1422.0	56					348.22	382.23	417.27	451.72	486.13	520.48	554.79	623.25	691.51	759.58
1524.0	60					373.38	410.44	447.46	484.43	521.34	558.21	595.03	668.52	741.82	814.91
(1620.0)						397.03	436.48	457.84	515.20	554.46	593.73	623.87	711.11	789.12	867.00
1626.0	64					398.53	438.11	477.64	517.13	556.56	595.95	635.28	713.80	792.13	810.26
1727.0	68					423.44	465.51	507.53	549.51	591.43	633.31	675.13	758.64	841.94	925.05
(1820.0)						446.37	490.74	535.06	579.32	623.50	667.71	711.79	799.92	887.81	975.51
1829.0	72						493.18		582.26	626.65	671.04	714.20	803.92	890.77	980.39
1930.0	76									661.52	708.40	755.23	848.75	942.07	1035.19
(2020.0)										692.60	741.69	790.75	888.70	986.41	1084.02
2032.0	80									696.74	746.13	795.48	894.03	992.38	1090.53
(2220.0)										761.65	815.68	869.66	977.50	1085.80	1192.53
(2420.0)												948.58	1066.26	1183.75	1301.04
(2540.0)	100											995.93	1119.53	1242.94	1366.15
(2845.0)	112											1116.28	1254.93	1393.37	1531.63

Note:

1.Pipes can be supplied in sizes intermediate between the nominal outside diameters and nominal wall thicknesses listed in this table, subject to agreement between the supplier and the buyer.
2.The nominal outside diameters marked with parentheses in this table are for reference only.

Physical and Chemical Properties of SSAW Steel Pipes

Standard	Steel Grade	Chemical Composition					Other	Tensile Properties				Charpy
Standard	Steel Grade	C max	Mn max	P max	S max	Si max	Other	Y.S. min	T.S. min	D≤168.3mm	D>168.3mm	Charpy
GB/T3091-2008	Q215A	≤0.15	0.25-1.20	0.045	0.05	0.35	Nb/V/Ti See GB/T1591-94	215	335	15	>31	–
	Q215B	≤0.15	0.25-0.55	0.045	0.045	0.35		215	335	15	>31	–
	Q235A	≤0.22	0.30-0.65	0.045	0.05	0.35		235	375	15	>26	–
	Q235B	≤0.20	0.30-1.80	0.045	0.045	0.35		235	375	15	>26	–
	Q295A	0.16	0.80-1.50	0.045	0.045	0.55		295	390	13	>23	–
	Q295B	0.16	0.80-1.50	0.04	0.04	0.55		295	390	13	>23	–
	Q345A	0.2	1.00-1.60	0.045	0.045	0.55		345	510	13	>21	–
	Q345B	0.2	1.00-1.60	0.04	0.04	0.55		345	510	13	>21	–
GB/T9711.1-1997	L175	0.21	0.6	0.03	0.03	–	–	175	315	–	27	–
	L210	0.21	0.9	0.03	0.03	–		210	335	–	25	–
	L245	0.26	1.15	0.03	0.03	–		245	415	–	21	–
	L290	0.28	1.25	0.03	0.03	–		290	415	–	21	–
	L320	0.3	1.25	0.03	0.03	–		320	435	–	20	–
	L360	0.3	1.25	0.03	0.03	–		360	460	–	19	–
	L390	0.26	1.35	0.03	0.03	–		390	490	–	18	–
	L415	0.26	1.35	0.03	0.03	–		415	520	–	17	–
	L450	0.26	1.4	0.03	0.03	–		450	535	–	17	–
	L485	0.23	1.6	0.03	0.03	–		485	570	–	16	–
	L555	0.18	1.8	0.03	0.03	–		555	625	–	15	–
API 5L (PSL1)						(Timax)
	A25	0.21	0.6	0.03	0.03	–	Grade B Nb+V≤0.03%, ≥B,Grade steel may add Nb, V or their,combination, and Nb+V+Ti≤0.15% Grade B Nb+V≤0.03% Steel≥Grade B,(Niobium Vanadium Titanium or combinations maybe used but Nb+V+Ti≤0.15%)	172	310	–		Not required or optional: Impact energy and shear area as one or two toughness criteria
	A	0.22	0.9	0.03	0.03	–		207	331
	B	0.26	1.2	0.03	0.03	0.04		241	414
	X42	0.26	1.3	0.03	0.03	0.04		290	414
	X46	0.26	1.4	0.03	0.03	0.04		317	434
	X52	0.26	1.4	0.03	0.03	0.04		359	455
	X56	0.26	1.4	0.03	0.03	0.04		386	490
	X60	0.26	1.4	0.03	0.03	0.04		414	517
	X65	0.26	1.45	0.03	0.03	0.06		448	531
	X70	0.26	1.65	0.03	0.03	0.06		483	565

Execution Standards for Spiral Steel Pipes

Standardization Code	API	ASTM	BS	DIN	GB/T	JIS	ISO	YB	SY/T	SNV
Standards	5CT	A53	1387	1626	3091	3442	559	4028	5037	OS-F101
	5L	A120		10219	9711.1	3444	3181.1		5040
		A135			9711.2	3452	3183.2
		A252			14291	3454
		A500			13793	3466
		A589

Standard	Steel Grade	C	Si	Mn	P	S	V	Nb	Ti	Others	CEV (max)	Yield Strength Rt0.5 (MPa)	Tensile Strength Rm Min (MPa)	Tensile Strength Rm Max (MPa)	Yield Ratio (max)	Elongation A Min (%)
GB/T 9711.2-1999	L245NB	0.16	0.4	1.1	0.025	0.02	–	–	–	1)	0.42	245	440	415	0.8	22
	L245MB	0.16	0.45	1.5	0.025	0.02	0.04	0.04	–	1)	0.4	245	440	415	0.85	22
	L290NB	0.17	0.4	1.2	0.025	0.02	0.05	0.05	0.04	1)	0.42	290	440	415	0.8	21
	L360MB	0.16	0.45	1.5	0.025	0.02	0.04	0.04	–	1)	0.4	290	440	415	0.85	21
	L360NB	0.2	0.45	1.6	0.025	0.02	0.1	0.05	0.04	1) 2)	0.45	360	510	460	0.85	20
	L415MB	0.16	0.45	1.6	0.025	0.02	0.05	0.05	0.04	1)	0.41	360	510	460	0.85	20
	L415NB	0.21	0.45	1.6	0.025	0.02	0.15	0.05	0.04	1) 2) 3)	Agreement	415	565	520	0.85	18
	L450MB	0.16	0.45	1.6	0.025	0.02	0.08	0.05	0.06	1) 2) 3)	0.42	415	565	520	0.85	18
	L485MB	0.16	0.45	1.6	0.025	0.02	0.1	0.05	0.06	1) 2) 3)	0.43	450	570	535	0.87	18
	L485MB	0.16	0.45	1.7	0.025	0.02	0.1	0.06	0.06	1) 2) 3)	0.43	485	605	570	0.9	18
	L555MB	0.16	0.45	1.8	0.025	0.02	0.1	0.06	0.06	1) 2) 3)	Agreement	555	675	625	0.9	18

Standard	Steel Grade	C (max)	Mn (max)	P (max)	S (max)	Ti (max)	Other	CE Pcm (max)	CE IIW (max)	Yield Strength (MPa) [min]	Yield Strength (MPa) [max]	Tensile Strength (MPa) [min]	Tensile Strength (MPa) [max]
API Spec 5L (PSL2)	B	0.22	1.2	0.025	0.015	0.04	–	0.25	0.43	241	448	414	758
	X42	0.22	1.3	0.025	0.015	0.04	–	0.25	0.43	290	496	414	758
	X46	0.22	1.4	0.025	0.015	0.04	–	0.25	0.43	317	524	434	758
	X52	0.22	1.4	0.025	0.015	0.04	–	0.25	0.43	359	531	455	758
	X56	0.22	1.4	0.025	0.015	0.04	–	0.25	0.43	386	544	490	758
	X60	0.22	1.4	0.025	0.015	0.04	–	0.25	0.43	414	565	517	758
	X65	0.22	1.45	0.025	0.015	0.04	–	0.25	0.43	448	600	531	758
	X70	0.22	1.65	0.025	0.015	0.04	–	0.25	0.43	483	621	565	758
	X80	0.22	1.85	0.025	0.015	0.04	–	0.25	0.43	552	690	621	827