API SPEC 5 Lhigh frequency welded pipe ERW

API SPEC 5 Lhigh frequency welded pipe ERW

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 3500 m.t./month

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ERW Welded Steel Pipes

Application of API ERW Line Pipes :

It is widely applied to line pipe and casing and tubing in oil transportation and casing field, and it is used in Low,high pressure liquid and gassy transportation and it is also good Structure pipe (for furniture, window, door, building , bridge, mechanical etc).

Package of API ERW Line Pipes:

bundles with anti-rust painting and with plastic caps

Standard of API ERW Line Pipes:

API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

Steel Grade of API ERW Line Pipes:

API SPEC 5L: B, X42, X46, X52, X56, X60, X65

API SPEC 5CT: J55, K55, N80, L80-1

ASTM A53: A, B, C

GB/T9711.1:L242、L290、L320、L360、L390、L415、L450

Sizes of pipes of API ERW Line Pipes:

*Remark: Besides below sizes, we also can arrange production based on requirement of customers

OD		WT			WEIGHT
INCH	MM	SCH	MM	INCH	KG/M	LB/INCH
1 1/2”	48.3	STD-40	3.68	0.145	4.09	2.75
1 1/2”	48.3	XS-80	5.08	0.2	5.47	3.68
2”	60.3	STD-40	3.91	0.154	5.49	3.69
2”	60.3	XS-80	5.54	0.218	7.56	5.08
2 1/2”	73	STD-40	5.16	0.203	8.72	5.86
2 1/2”	73	XS-80	7.01	0.276	11.52	7.74
3”	88.9	STD-40	5.49	0.216	11.41	7.67
3”	88.9	XS-80	7.62	0.3	15.43	10.37
3 1/2”	101.6	STD-40	5.74	0.226	13.71	9.21
3 1/2”	101.6	XS-80	8.08	0.318	18.83	12.65
4”	114.3	STD-40	6.02	0.237	16.24	10.91
4”	114.3	XS-80	8.56	0.337	22.55	15.15
5”	141.3	STD-40	6.55	0.258	21.99	14.78
5”	141.3	XS-80	9.53	0.375	31.28	21.02
6”	168.3	STD-40	7.11	0.28	28.55	19.19
6”	168.3	XS-80	10.97	0.432	42.99	28.89
8”	219.1	STD-40	8.18	0.322	42.98	28.88
8”	219.1	XS-80	12.7	0.5	65.3	43.88
10”	273	STD-40	9.27	0.365	60.9	40.92
10”	273	80	15.09	0.594	96.95	65.15
12”	323.8	STD	9.53	0.375	74.61	50.13
12”	323.8	40	10.31	0.406	80.51	54.1
12”	323.8	XS	12.7	0.5	98.42	66.14
12”	323.8	80	17.48	0.688	133.38	89.63
14”	355.6	40	11.13	0.438	95.51	64.18
14”	355.6	XS	12.7	0.5	108.48	72.9
14”	355.6	80	19.05	0.75	159.71	107.32
16”	406.4	XS-40	12.7	0.5	124.55	83.69
18”	457	STD	9.53	0.375	106.23	71.38
18”	457	40	14.27	0.562	157.38	105.75
18”	457	80	23.83	0.938	257.13	172.78
20”	508	40	15.09	0.594	185.28	124.5
20”	508	80	26.19	1.031	314.33	211.22

Machinical Properties

Standard	Grade	（MPa）	（MPa）	Min(%)
Standard	Grade	Yield strength	Tensile Strength	Elongation
GB/T9711.1	L245	≥245	≥415	21
	L290	≥290	≥415	21
	L320	≥320	≥435	20
	L360	≥360	≥460	19
	L390	≥390	≥490	18
	L415	≥415	≥520	17
	L450	≥450	≥535	17
	L485	≥485	≥570	17

Chemical Composition(%)

Standard	Grade	C	Mn	P	S
Standard	Grade	Max	Max	Max	Max
GB/T9711.1	L245	0.26	0.15	0.030	0.030
	L290	0.28	1.25	0.030	0.030
	L320, L360	0.30	1.25	0.030	0.030
	L390, L415	0.26	1.35	0.030	0.030
	L450	0.26	1.40	0.030	0.030
	L485	0.23	1.60	0.025	0.030

Standard: GB/9711.2

Mechanical Properties

Standard	Grade	（MPa） Yield strength		（MPa） Tensile Strength		Min(%) Elongation

GB/T9711.2		Rt0.5Min	Rt0.5Max	RmMin	Rt0.5/Rm Max
	L245	245	440		0.80	22
	L245				0.85
	L290	290	440		0.80	21
	L290				0.85
	L360	360	510		0.85	20
	L360				0.85
	L415	415	565		0.85	18
	L415				0.85
	L450	450	570	535	0.87	18
	L485	485	605	570	0.90	18

Chemical Composition (%)

Standard	Grade	C	Mn	P	S	V	Nb	Ti	CEV
Standard	Grade	Max	Max	Max	Max	Max	Max	Max	Max
GB/T9711.2	L245NB	0.16	1.1	0.025	0.020	-	-	-	0.42
	L290NB	0.17	1.2	0.025	0.020	0.05	0.05	0.04	0.42
	L360NB	0.20	1.6	0.025	0.020	0.10	0.05	0.04	0.45
	L415NB	0.21	1.6	0.025	0.020	0.15	0.05	0.04	-
	L245NB, L290NB	0.16	1.5	0.025	0.020	0.04	0.04	-	0.4
	L360NB	0.16	1.6	0.025	0.020	0.05	0.05	0.04	0.41
	L415NB	0.16	1.6	0.025	0.020	0.08	0.05	0.06	0.42
	L450NB	0.16	1.6	0.025	0.020	0.10	0.05	0.06	0.43
	L485NB	0.16	1.7	0.025	0.020	0.10	0.06	0.06	0.43

Standard: ASTM A53

Mechanical Properties

Standard	Grade	（MPa）	（MPa）
Standard	Grade	Yield strength	Tensile Strength
ASTM A53M	A	205	330
ASTM A53M	B	240	415

Chemical Composition(%)

Standard	Grade	C	Mn	P	S	V	Ni	Cu	Cr	Mo
Standard	Grade	Max	Max	Max	Max	Max	Max	Max	Max	Max
ASTM A53M	A	0.25	0.95	0.05	0.045	0.08	0.4	0.5	0.4	0.15
ASTM A53M	B	0.30	1.20	0.05	0.045	0.08	0.4	0.5	0.4	0.15

Q:What is the minimum temperature that steel pipes can handle?: The minimum temperature at which steel pipes can withstand depends on the particular grade and composition of the steel. In general, steel pipes can endure extremely low temperatures without encountering significant issues. In fact, numerous steel varieties are specifically engineered to endure freezing temperatures, making them suitable for a range of uses in industries like oil and gas, construction, and cryogenics. However, it is crucial to acknowledge that steel may become more brittle at exceedingly low temperatures, which can impact its mechanical properties. Therefore, it is vital to meticulously choose the appropriate steel grade and consider any specific requirements or limitations for the desired application when determining the minimum temperature that steel pipes can handle.

Q:How are steel pipes used in the manufacturing of heat exchangers?: Steel pipes are commonly used in the manufacturing of heat exchangers due to their high strength and durability. They serve as the primary components for carrying hot or cold fluids within the heat exchanger system. The steel pipes facilitate the efficient transfer of heat between the two fluids by offering excellent thermal conductivity. Additionally, the corrosion-resistant properties of steel ensure the longevity and reliability of the heat exchanger, making it suitable for various industrial applications.

Q:Can steel pipes be used for heating and cooling systems?: Yes, steel pipes can be used for heating and cooling systems. Steel pipes are commonly used in HVAC (heating, ventilation, and air conditioning) systems due to their durability, strength, and resistance to high temperatures. They are especially suitable for transporting hot water or steam for heating purposes and can also handle the circulation of chilled water for cooling systems.

Q:Can steel pipes be used for underground compressed air pipelines?: Indeed, underground compressed air pipelines can utilize steel pipes. The strength and durability of steel pipes make them a popular choice for subterranean pipelines. They possess the capacity to endure high pressure and withstand corrosion and other environmental elements. Moreover, steel pipes are renowned for their extended lifespan, rendering them a dependable option for compressed air pipelines. Nevertheless, it is crucial to guarantee the adequate coating and protection of the steel pipes to avert any potential corrosion concerns. Furthermore, the proper installation and maintenance of these pipelines are vital to ensure their efficiency and safety.

Q:What is the fire rating of steel pipes?: The fire rating of steel pipes can vary depending on factors such as the thickness of the pipe, the type of insulation or fireproofing materials used, and the specific application or building codes. However, steel pipes are generally considered to have good fire resistance properties due to their non-combustible nature and ability to withstand high temperatures.

Q:What are the advantages of PVC pipe and galvanized steel pipe?: This is different in different fields, in fact, the combination of PVC pipe and galvanized steel pipe becomes plastic steel pipe.The steel plastic pipe is in the internal and external combined with a layer of plastic pipe material and obtained a pipe, it has high mechanical strength, the steel pipe has the advantages of high impact resistance, and corrosion resistance of plastic material, has the advantages of high and low grade health fluid resistance and scaling.The steel pipe used by our company is produced by Benxi Steel, which is well known both at home and abroad. It has the advantages of low phosphorus, low sulfur and high mechanical performance. It can meet the requirements of users.

Q:Can steel pipes be used for structural purposes?: Yes, steel pipes can be used for structural purposes.

Q:Can steel pipes be used for electrical conduits?: No, steel pipes are not suitable for use as electrical conduits. Electrical conduits are typically made of materials such as PVC (polyvinyl chloride) or metal conduits specifically designed for electrical applications.

Q:How are steel pipes used in water transportation?: Steel pipes are commonly used in water transportation due to their durability and strength. They can be used for various purposes, such as carrying water from a source to a treatment plant, distributing water to different areas, and even for sewage systems. Steel pipes are highly resistant to corrosion and can withstand high pressure, making them ideal for long-distance water transportation.

Q:What is the role of steel pipes in the aerospace industry?: Steel pipes play a crucial role in the aerospace industry as they are used in various applications such as aircraft manufacturing, engine components, and fuel systems. These pipes are known for their high strength, durability, and resistance to extreme temperatures and pressure. They provide a reliable conduit for fluids, gases, and hydraulic systems, ensuring efficient operations and safety in aircraft. Additionally, steel pipes are utilized in structural components like landing gear, frames, and support structures due to their ability to withstand heavy loads and maintain structural integrity under dynamic conditions. Overall, steel pipes are essential in the aerospace industry for their versatility and reliability in critical systems and structures.

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