API SSAW Welded Steel Pipes

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Loading Port:: China Main Port

Payment Terms:: TT or L/C

Min Order Qty:: 50MT m.t.

Supply Capability:: based on order m.t./month

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API SSAW Welded Steel Pipes

Application of API SSAW Welded Steel Pipes

It is widely applied to line pipe in oil and sewage transportation , and it is used in Low pressure liquid and gassy transportation and it is also good Structure pipe in building and bridge field.

Package of API SSAW Welded Steel Pipes

Bundles with anti-rust painting and with plastic caps

Standard of API SSAW Welded Steel Pipes

API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9700.1

Steel Grade of API SSAW Welded Steel 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/T9700.1:L242、L290、L320、L360、L390、L415、L450

Sizes of pipes of API SSAW Welded Steel Pipes

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

OD		WT
NoninalPipe size Inches	OD MM	10	20	30	STD	40	60	XS	80
12	323.90		6.35	8.38	9.53	10.31	14.27	12.70	17.48
14	355.60	6.35	7.92	9.53	9.53	11.13	15.09	12.70	19.05
16	406.40	6.35	7.92	9.53	9.53	12.7	16.66	12.70	21.44
18	457.00	6.35	7.92	11.13	9.53	14.27	19.05	12.70	23.88
20	508.00	6.35	9.53	12.7	9.53	15.09	20.62	12.70	26.19
22	559.00	6.35	9.53	12.7	9.53		22.23	12.70	28.58
24	610.00	6.35	9.53	14.27	9.53	17.48	24.61	12.70	30.96
26	660.00	7.92	12.70		9.53			12.70
28	711.00	7.92	12.70	15.88	9.53			12.70
30	762.00	7.92	12.70	15.88	9.53			12.70
32	813.00	7.92	12.70	15.88	9.53	17.48		12.70
34	864.00	7.92	12.70	15.88	9.53	17.48		12.70
36	914.00	7.92	12.70	15.88	9.53	19.05		12.70
38	965.00				9.53			12.70
40	1016.00				9.53			12.70
42	1067.00				9.53			12.70
44	1118.00				9.53			12.70
46	1168.00				9.53			12.70
48	1219.00				9.53			12.70

Mechanical 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

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

API SSAW Welded Steel Pipes

Q:What are the different manufacturing standards for steel pipes?: Various manufacturing standards for steel pipes are widely recognized and implemented in the industry, ensuring that specific requirements and quality standards are met. Some of the most common standards for steel pipes are as follows: 1. ASTM (American Society for Testing and Materials): Widely used in the United States, ASTM standards encompass a wide range of steel pipe specifications. These standards include specifications for seamless and welded pipes, as well as different grades and dimensions. 2. ISO (International Organization for Standardization): Globally recognized, ISO standards provide guidelines for steel pipe production. They cover areas such as dimensions, materials, testing, and quality control. 3. EN (European Norm): Applicable in Europe, EN standards specify various types of steel pipes. They cover dimensions, materials, manufacturing processes, and testing. 4. JIS (Japanese Industrial Standards): Widely used in Japan and internationally recognized, JIS standards cover dimensions, materials, and testing methods for steel pipes. 5. BS (British Standards): Commonly used in the United Kingdom, BS standards encompass a range of steel pipe specifications. They include requirements for dimensions, materials, and testing procedures. 6. API (American Petroleum Institute): Specifically developed for the oil and gas industry, API standards cover different aspects of steel pipe manufacturing. They include specifications for seamless and welded pipes used in oil and gas exploration, production, and transportation. Manufacturers, buyers, and users of steel pipes should be aware of these standards to ensure the quality, compatibility, and reliability of the pipes. Compliance with these standards helps to ensure that the steel pipes meet necessary requirements and are suitable for their intended applications.

Q:What are the different types of supports used for steel pipes in buildings?: Some common types of supports used for steel pipes in buildings include pipe hangers, clamps, brackets, and roller supports. These supports are designed to provide stability, prevent sagging or bending, and distribute the weight of the pipes evenly. The choice of support depends on factors such as pipe size, location, and load requirements.

Q:What are the common applications of seamless steel pipes?: Due to their unique properties, seamless steel pipes are widely used in various industries. Here are some of the most common applications: 1. The oil and gas industry extensively utilizes seamless steel pipes for transporting oil, gas, and other fluids. These pipes are preferred because of their high strength, durability, and resistance to corrosion, making them suitable for harsh environments. 2. Seamless steel pipes are extensively used in construction projects, such as building, bridge, and tunnel construction. They are ideal for structural applications due to their ability to withstand heavy loads and provide excellent strength and stability. 3. The automotive industry relies on seamless steel pipes for manufacturing automotive parts, including exhaust systems, engine components, and hydraulic systems. These pipes offer high strength, reliability, and resistance to heat, making them suitable for demanding automotive applications. 4. Various mechanical and engineering applications benefit from the usage of seamless steel pipes. They are commonly used for carrying fluids, gases, and steam, as well as for transmitting power in machinery and equipment. 5. Power plants extensively utilize seamless steel pipes for transporting steam and hot water. These pipes are capable of withstanding high pressure and temperature, making them ideal for power generation applications. 6. The petrochemical industry heavily relies on seamless steel pipes for transporting chemicals, gases, and liquids. These pipes have excellent resistance to corrosion, which is essential when dealing with hazardous and corrosive substances. 7. The mining industry utilizes seamless steel pipes for various applications, including the transportation of slurry, water, and other mining-related fluids. These pipes offer durability, reliability, and resistance to abrasion, making them suitable for the challenging mining environment. 8. The aerospace industry finds applications for seamless steel pipes in manufacturing aircraft components, such as hydraulic systems, fuel lines, and structural parts. These pipes provide a high strength-to-weight ratio and resistance to extreme temperatures and pressure. Overall, seamless steel pipes play a crucial role in a wide range of industries. Their exceptional properties, including strength, durability, resistance to corrosion and high temperatures, make them an essential component in various industrial processes and infrastructure development.

Q:What is the maximum allowable deflection for steel pipes?: Industry standards and design codes typically determine the maximum allowable deflection for steel pipes. These regulations specify the acceptable limits of deflection to guarantee the pipes' structural integrity and functionality. The maximum allowable deflection can vary, depending on factors like pipe diameter, wall thickness, material properties, and the application type. To determine the specific maximum allowable deflection for a particular steel pipe application, it is crucial to reference relevant standards and codes such as the ASME B31.3 code for process piping or AWWA standards for water transmission and distribution pipes. Adhering to these guidelines ensures the safe and efficient operation of steel pipes in various industries and applications.

Q:What are the different types of steel pipe fittings for gas pipelines?: There are several types of steel pipe fittings commonly used for gas pipelines, including elbows, tees, reducers, couplings, and flanges. These fittings are essential for connecting and directing the flow of gas within the pipeline system.

Q:What is the size of seamless steel tube DN150?: Seamless steel tube is generally used to indicate the outer diameter * wall thickness, DN150 seamless steel pipe GB wall thickness is 5mm. Wall thickness is a series of calculations based on your design, pressure, temperature, and pipe material.

Q:How are steel pipes used in the manufacturing of aerospace components?: Steel pipes are used in the manufacturing of aerospace components for various purposes such as supporting structures, fuel systems, hydraulic and pneumatic systems, and exhaust systems. They provide strength, durability, and resistance to extreme temperatures and pressure, making them suitable for critical applications in the aerospace industry.

Q:What are the different methods of pipe joining for steel pipes?: Steel pipes can be joined using various methods, each with its own benefits and drawbacks. These methods include: 1. Butt Welding: Two steel pipes are welded together by beveling or facing their ends to form a V-groove. Molten metal is then used to fill the groove, creating a strong and long-lasting joint. 2. Socket Welding: A socket is welded onto the end of a steel pipe, and another pipe is inserted into the socket and welded in place. This method creates a leak-proof and corrosion-resistant joint. 3. Threaded Joint: Steel pipes can be joined by threading the ends and using a threaded coupling or union to connect them. This method is commonly used for smaller pipes and allows for easy disassembly and reassembly. 4. Flanged Joint: For larger pipes, a flange is attached to the end of each pipe, and the flanges are fastened together with gaskets using bolts. This method is commonly used in industries such as oil and gas, water treatment, and chemical processing. 5. Grooved Joint: Grooving machines are used to create a groove on the outside of the pipe. A coupling or fitting is then inserted into the groove and secured with bolts or clamps. This method is quick to install and allows for easy disassembly and reassembly. The choice of pipe joining method depends on factors such as pipe size, application, and desired strength and durability. Each method has its own advantages and disadvantages.

Q:Can steel pipes be used for underground water treatment systems?: Yes, steel pipes can be used for underground water treatment systems. Steel pipes are known for their durability, strength, and resistance to corrosion, making them suitable for various applications, including underground water treatment systems. They can withstand the pressure and environmental conditions found underground, ensuring the safe and efficient transport of water within the treatment system. However, it is important to consider the water quality and potential for corrosion in the specific location when selecting the type of steel and implementing protective measures, such as coatings or cathodic protection, to prevent corrosion and ensure the longevity of the pipes.

Q:Can steel pipes be used for underground stormwater systems?: Yes, steel pipes can be used for underground stormwater systems. Steel pipes are known for their durability and strength, making them suitable for withstanding the pressure and weight of underground stormwater systems. Additionally, steel pipes have a high resistance to corrosion, which is important when dealing with stormwater that may contain various contaminants. However, it is important to properly coat and protect the steel pipes to prevent any potential corrosion or damage over time. Regular maintenance and inspections should also be carried out to ensure the integrity of the steel pipes and the overall performance of the underground stormwater system.

Covering an area of 150,000 m2, is with total assets of 500 million RMB，with annual production capacity of 500,000 tons. Currently, we has approximately 1000 employees, including many top-rankingtechnical experts and excellent management team.

1. Manufacturer Overview
Location	Tianjin, China
Year Established	2001
Annual Output Value	500,000Tons
Main Markets	Southeast Asia; Middle East; Oceania; Americas; Europe; Africa;etc.
Company Certifications	API 5L；API 5CT；ISO9001:2008 GB/T 19001-2008

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port	Tianjin;Qingdao
Export Percentage	50% - 60%
No.of Employees in Trade Department	1000-1100 People
Language Spoken:	English; Chinese; Spanish
b)Factory Information
Factory Size:	Above 150,000 square meters
No. of Production Lines	Above 10
Contract Manufacturing	OEM Service Offered; Design Service Offered
Product Price Range	Average