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 are the different types of steel pipe supports for offshore platforms?: There are several types of steel pipe supports commonly used for offshore platforms, including but not limited to: 1. Clamps: These are used to secure and fasten pipes to the support structure, providing stability and preventing movement. 2. Hangers: These are used to suspend pipes from the support structure, allowing for flexibility and reducing stress on the pipes. 3. Guides: These are installed to control the movement and alignment of pipes, ensuring they stay in place and prevent damage during operation. 4. Shoes: These are used to support and distribute the weight of the pipe, typically at points where the pipe intersects with the support structure. 5. Saddles: These are designed to cradle the pipe and provide support, typically used for horizontal or inclined pipes. Each type of steel pipe support serves a specific purpose in ensuring the integrity and functionality of the offshore platform's piping system.

Q:What is the role of steel pipes in the construction of bridges?: Steel pipes play a crucial role in the construction of bridges as they are used for various purposes such as supporting the weight of the bridge, providing structural integrity, and allowing for the flow of fluids or gases. Steel pipes are often used as support columns or piles in bridge foundations, providing stability and strength to the structure. They are also used for constructing bridge piers, trusses, and beams, ensuring the bridge can withstand heavy loads and forces. Additionally, steel pipes can be utilized for the transportation of water, gas, or other fluids across the bridge, making them essential for the overall functionality and longevity of the bridge.

Q:What is the cost of steel pipes compared to other piping materials?: The cost of steel pipes can vary based on factors like size, grade, and specifications, as well as market conditions and location. Generally, steel pipes are more expensive than materials like PVC or HDPE. However, when compared to materials like copper or stainless steel, steel pipes can often be more cost-effective. Steel pipes are known for their durability, strength, and resistance to high pressures and temperatures, making them suitable for various applications such as oil and gas pipelines, plumbing systems, and structural supports. Their longevity and reliability can offset the initial higher cost, as they require less maintenance and have a longer lifespan than other materials. Moreover, steel pipes are readily available in different sizes and grades, making them versatile and adaptable to different project requirements. This availability and versatility contribute to their cost-effectiveness, as they can be easily sourced and customized to specific needs. It is important to consider that prices for steel pipes can fluctuate due to market conditions and factors like raw material costs, transportation expenses, and labor charges. Therefore, it is advisable to consult with suppliers or industry experts for accurate pricing information based on specific project specifications and market conditions.

Q:How are steel pipes used in the shipbuilding industry?: Steel pipes are used in the shipbuilding industry for various purposes including the construction of the ship's hull, piping systems, and structural components. They are utilized for their strength, durability, and corrosion resistance, playing a crucial role in ensuring the structural integrity, fluid transportation, and overall safety of the ships.

Q:How are steel pipes tested for leakage?: Steel pipes are typically tested for leakage using various methods such as hydrostatic testing, ultrasonic testing, or dye penetrant testing. Hydrostatic testing involves pressurizing the pipe with water or another suitable liquid to a predetermined level and checking for any pressure drop over a specific period of time, indicating potential leakage. Ultrasonic testing utilizes high-frequency sound waves to detect any defects or cracks in the pipe wall that may cause leakage. Dye penetrant testing involves applying a colored liquid to the surface of the pipe, which seeps into any cracks or openings, making them easily visible under specific lighting, thus identifying potential leaks.

Q:What is the difference between steel pipe and aluminum pipe?: The main difference between steel pipe and aluminum pipe lies in their composition and physical properties. Steel pipes are primarily made of iron and carbon, with other elements added to enhance their strength and corrosion resistance. On the other hand, aluminum pipes are made entirely of aluminum, which is a lightweight and highly corrosion-resistant metal. One significant distinction between steel and aluminum pipes is their weight. Steel is a denser material compared to aluminum, meaning that steel pipes are generally heavier and sturdier. This characteristic makes steel pipes suitable for applications requiring higher structural strength and load-bearing capabilities. Aluminum pipes, on the other hand, offer distinct advantages due to their lightweight nature. They are around one-third the weight of steel pipes, making them easier to handle, transport, and install. This lightweight property also makes aluminum pipes more suitable for applications where weight reduction is crucial, such as in aerospace and automotive industries. Another crucial aspect to consider is corrosion resistance. Steel pipes are prone to rusting and corrosion, especially when exposed to moisture or corrosive environments. To combat this, steel pipes are often coated with protective layers or galvanized to enhance their resistance to corrosion. Aluminum pipes, on the other hand, have excellent natural corrosion resistance due to the formation of a thin layer of aluminum oxide on their surface. This oxide layer acts as a protective barrier, preventing further corrosion and degradation. Cost is another factor to consider when comparing steel and aluminum pipes. Steel pipes are generally more cost-effective compared to aluminum pipes, primarily due to the lower cost of raw materials and manufacturing processes involved. However, it is essential to consider the specific requirements and durability needed for the intended application, as the long-term maintenance costs and lifespan of steel and aluminum pipes may vary. In summary, the difference between steel and aluminum pipes can be summarized based on their weight, strength, corrosion resistance, and cost. Steel pipes are heavier, stronger, and more prone to rusting and corrosion but are generally more cost-effective. Aluminum pipes are lightweight, corrosion-resistant, and costlier but offer advantages in weight reduction and specific applications where corrosion resistance is crucial. Ultimately, the choice between steel and aluminum pipes depends on the specific needs of the project and the desired properties for optimal performance.

Q:How are steel pipes used in offshore wind farms?: Steel pipes are used in offshore wind farms for various purposes such as the installation of wind turbine foundations, transmission of electricity, and protection of cables. These pipes provide a strong and durable structure to support the turbines and withstand harsh marine conditions, ensuring the efficient and reliable operation of the wind farm.

Q:How do steel pipes handle high-velocity flow?: Steel pipes are designed to handle high-velocity flow efficiently due to their inherent strength and durability. The smooth interior surface of steel pipes minimizes friction, allowing for smooth flow and reducing energy loss. Additionally, the sturdy construction of steel pipes enables them to withstand the pressures and forces exerted by high-velocity flow without deformation or failure.

Q:How are steel pipes used in the construction of chemical plants?: Steel pipes are widely used in the construction of chemical plants due to their durability, corrosion resistance, and ability to handle high pressure and temperature. These pipes are primarily utilized for transporting various chemicals, gases, and liquids within the plant, ensuring a safe and efficient flow of materials throughout the facility. They are commonly employed in the installation of process pipelines, utility systems, and structural supports, playing a crucial role in the overall functionality and reliability of chemical plants.

Q:How do steel pipes handle water erosion?: Steel pipes handle water erosion well due to their inherent strength and durability. The smooth surface of steel pipes helps to minimize friction and reduce the potential for erosion. Additionally, the corrosion-resistant nature of steel prevents rusting, ensuring long-term protection against water erosion.

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