Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1 System 1

Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

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Loading Port:: Tianjin Port

Payment Terms:: TT or LC

Min Order Qty:: 1t m.t.

Supply Capability:: 5000 Tons Per Month m.t./month

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Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

Application of Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1：

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 Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1：

bundles with anti-rust painting and with plastic caps

Standard of Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1：

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

Steel Grade of Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1：

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 Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1：

*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

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	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

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

Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

Q: What type of steel pipe dance is used in general?: According to international competition practice, the standard size of steel tube is 40 mm or 45 mm in diameter, and the 45mm is usually used. The height of the steel pipe is not less than 3.3 meters and not higher than 4 meters.

Q: What is the difference between API 5L and ASTM A53 steel pipes?: API 5L and ASTM A53 steel pipes differ mainly in their specifications and intended applications. API 5L is a standard for seamless and welded steel pipes used for transportation of oil, gas, and water in the petroleum and natural gas industries. It specifies requirements for the manufacture of two product specification levels (PSL1 and PSL2) of seamless and welded steel pipes. On the other hand, ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes used for mechanical and pressure applications. While both standards have similarities, they have different scopes and requirements, making them suitable for distinct purposes in different industries.

Q: How are steel pipes used in the automotive exhaust system?: Steel pipes are used in the automotive exhaust system to transport and expel the exhaust gases from the engine. They are durable and resistant to high temperatures, making them suitable for this purpose. Steel pipes are often bent and welded together to form the exhaust system, ensuring a smooth flow of exhaust gases and minimizing any leaks.

Q: How are steel pipes coated for protection?: Steel pipes are commonly coated for protection using various methods such as galvanization, epoxy coating, and polyethylene wrapping. Galvanization involves immersing the pipes in a bath of molten zinc, forming a protective layer that prevents corrosion. Epoxy coating involves applying a layer of epoxy resin to the pipe surface, providing a barrier against moisture and chemicals. Polyethylene wrapping involves wrapping the pipes with a polyethylene material, offering insulation and protection against abrasion and corrosion. These coating methods ensure the longevity and durability of steel pipes, enhancing their resistance to environmental factors.

Q: How are steel pipes used in wastewater treatment?: Steel pipes are an essential component in the wastewater treatment process. They are used to transport and distribute wastewater from various sources to the treatment facilities. Steel pipes are chosen for this purpose due to their durability, strength, and resistance to corrosion. In wastewater treatment plants, steel pipes are commonly used for multiple applications. Firstly, they are used for the intake of raw wastewater. These pipes are typically large in diameter to accommodate the high flow rate of incoming wastewater. Steel pipes are ideal for this purpose as they can withstand the pressure and turbulence of the wastewater flow. Once inside the treatment facility, steel pipes are used to transport the wastewater to different treatment processes. They connect various units such as screens, grit chambers, sedimentation tanks, and biological reactors. Steel pipes are preferred in these applications due to their ability to handle the corrosive elements present in wastewater, such as chemicals, acids, and gases. Additionally, their durability ensures a long service life, reducing maintenance and replacement costs. Steel pipes are also utilized in the wastewater treatment process for the distribution of treated water. After the wastewater is treated, it undergoes disinfection and other processes to remove harmful contaminants. The treated water is then distributed through steel pipes to be reused for irrigation, industrial processes, or discharged back into water bodies. Furthermore, steel pipes are employed in the construction of wastewater treatment infrastructure. They are used in the installation of underground sewer lines, pumping stations, and manholes. Steel pipes provide the necessary strength and stability to withstand the weight of the soil and other external forces. In summary, steel pipes play a vital role in wastewater treatment by transporting and distributing wastewater, connecting different treatment units, and distributing treated water. Their durability, resistance to corrosion, and ability to handle high-pressure flows make them an ideal choice for this demanding application.

Q: What are the different methods of pressure testing steel pipes?: There are several methods of pressure testing steel pipes, including hydrostatic testing, pneumatic testing, and ultrasonic testing.

Q: What is the minimum wall thickness for steel pipes?: The minimum wall thickness of steel pipes varies depending on different factors, including the pipe's intended use and the specific industry standards and regulations. Determining the minimum wall thickness generally involves considering factors like the pipe's diameter, material strength, and the pressure or load it will experience during operation. In the oil and gas industry, for instance, the minimum wall thickness for steel pipes is typically specified by industry standards such as API 5L or ASME B31.3. These standards take into account elements such as the pipe's diameter, the material's yield strength, and the maximum pressure it will encounter. In other applications, such as structural or mechanical engineering, the minimum wall thickness for steel pipes is determined by factors like the pipe's intended load-bearing capacity, the desired safety factor, and any relevant building codes or regulations. To establish the specific minimum wall thickness requirements for steel pipes in a particular application, it is essential to consult the appropriate industry standards, codes, or regulations.

Q: Are steel pipes suitable for potable water applications?: Yes, steel pipes are suitable for potable water applications. They are commonly used in water distribution systems due to their durability, strength, and resistance to corrosion. However, proper coating and lining techniques should be employed to ensure the water remains safe for consumption and to prevent any potential leaching of contaminants from the pipe material.

Q: What are the main types of steel pipe ah? How to judge which kind of steel pipe performance is better?: Welded steel pipe for different welding process and divided into the furnace pipe welding (ERW) pipe and automatic arc welding, because of the different forms of welding seam welded pipe and spiral welded pipe is divided into two kinds, end its shape is divided into circular welded and shaped (square, flat) pipe.The welded pipe is rolled into the steel tubular to sew or spiral seam welded in the manufacturing method, and is divided into low pressure fluid delivery with welded steel pipe, spiral welded steel pipe, welded steel pipe, welded pipe roll etc.. Seamless steel pipe can be used in various industries, such as liquid, pneumatic, pipeline and gas pipeline. Welding pipes can be used in water pipelines, gas pipelines, heating pipes, electrical appliances, pipelines and so on.Press materialSteel pipe according to the pipe material (ie steel) can be divided into: carbon tube and alloy tube, stainless steel tube.Carbon tube can be divided into ordinary carbon steel tube and high quality carbon structure tube.The alloy tube can be divided into: low alloy pipe, alloy pipe structure, high alloy tube, high strength tube. Bearing tube, heat resistant acid resistant stainless pipe, precision alloy (such as cutting alloy) pipe, high temperature alloy tube, etc..

Q: Are steel pipes suitable for chemical processing plants?: Due to their exceptional strength, durability, and corrosion resistance, steel pipes find common usage in chemical processing plants. Particularly, stainless steel or alloy steel pipes possess the ability to endure high temperatures, pressure, and the corrosive impact of various chemicals. Consequently, they serve as a suitable means for the safe and efficient transportation and containment of diverse chemical substances. Moreover, the installation, maintenance, and repair of steel pipes are hassle-free, rendering them a cost-effective option for chemical processing plants. Nonetheless, it remains crucial to carefully select the appropriate steel type, taking into account factors such as the specific chemicals being processed, operating conditions, and any potential risks or compatibility issues. Regular inspections and maintenance are also vital for ensuring the integrity and performance of steel pipes in chemical processing plants.

The company has successively passed ISO9000 quality system, the American Petroleum Institute API, and also earned the environment healthy license, national special equipment manufacturing license.

1. Manufacturer Overview

Location	Hebei, China
Year Established	1988
Annual Output Value	Above One Hundred Million RMB
Main Markets	Main land; Southeast Asia; Middle East; Africa
Company Certifications	ISO 9002:2010；API 5L

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Tianjin
Export Percentage	30%-50%
No.of Employees in Trade Department	201-500 People
Language Spoken:	English; Chinese
b) Factory Information
Factory Size:	50,000 square meters
No. of Production Lines	Above 15
Contract Manufacturing	Meicai Metal Trading Co.Ltd
Product Price Range	Average