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: How are steel pipes used in the automotive manufacturing industry?: Steel pipes are commonly used in the automotive manufacturing industry for various purposes such as exhaust systems, chassis frames, and structural components. These pipes provide durability, strength, and resistance to corrosion, making them ideal for applications that require high performance and reliability.

Q: What are the different types of steel pipe bends for pipeline routing?: There are several different types of steel pipe bends commonly used for pipeline routing. These include 90-degree bends, 45-degree bends, and custom bends with specific angles as per the pipeline design requirements. Each type of bend serves a specific purpose in redirecting the flow of fluids or gases through the pipeline while maintaining structural integrity.

Q: How do you calculate the flow rate in a steel pipe?: To calculate the flow rate in a steel pipe, several parameters need to be considered. The first and most important parameter is the cross-sectional area of the pipe, which can be calculated using the formula A = πr², where A is the cross-sectional area and r is the radius of the pipe. Next, the velocity of the fluid flowing through the pipe needs to be determined. This can be done using the equation v = Q/A, where v is the velocity, Q is the volumetric flow rate, and A is the cross-sectional area of the pipe. To calculate the volumetric flow rate, the equation Q = AV can be used, where Q is the volumetric flow rate, A is the cross-sectional area, and V is the average velocity of the fluid. Additionally, it is important to take into account the properties of the fluid being transported through the pipe. The density and viscosity of the fluid can affect the flow rate. Overall, the flow rate in a steel pipe can be calculated by determining the cross-sectional area of the pipe, calculating the velocity of the fluid, and considering the properties of the fluid being transported.

Q: What are the different types of thread connections used in steel pipes?: There are several types of thread connections commonly used in steel pipes, including tapered threads such as NPT (National Pipe Taper), which are designed to create a tight seal, and straight threads like NPS (National Pipe Straight), which are often used for mechanical applications. Additionally, some other types of thread connections used in steel pipes include BSP (British Standard Pipe), which is widely used in Europe, and API (American Petroleum Institute) threads, which are commonly used in the oil and gas industry.

Q: What are the different coating options for steel pipes?: There are several coating options available for steel pipes, each serving a specific purpose and providing unique benefits. Some of the most common coating options for steel pipes include: 1. Fusion Bonded Epoxy (FBE) Coating: FBE coating is a popular choice for steel pipes used in various industries. It provides excellent corrosion resistance, impact resistance, and adhesion to the pipe surface. FBE coating is typically applied through a heat-induced chemical reaction, creating a durable and protective layer. 2. Polyethylene (PE) Coating: PE coating is commonly used for underground steel pipes, as it provides superior resistance against corrosion, abrasion, and chemicals. This coating is applied using extrusion methods and forms a seamless layer over the steel pipe, preventing any moisture penetration. 3. Polyurethane (PU) Coating: PU coating is known for its exceptional resistance to abrasion, chemicals, and harsh environmental conditions. It is commonly used for steel pipes exposed to extreme temperatures or in aggressive environments. PU coating can be applied in multiple layers to provide enhanced protection. 4. Coal Tar Enamel (CTE) Coating: CTE coating is a traditional option for steel pipes that require protection against corrosion. It is a thick, black coating that provides excellent resistance to water, soil, and atmospheric corrosion. CTE coating is typically applied using a hot-applied coating method. 5. Zinc Coating: Zinc coating, also known as galvanization, is a widely used protective coating for steel pipes. It involves applying a layer of zinc to the pipe surface, creating a barrier against corrosion. Zinc coating can be applied through hot-dip galvanization or electro-galvanization methods. 6. Concrete Coating: Concrete coating is often used for steel pipes in underground or submerged applications. It provides a robust protective layer against corrosion, abrasion, and mechanical damage. Concrete coating is typically applied as a cement mortar or a reinforced concrete layer. These are just some of the coating options available for steel pipes. The choice of coating will depend on factors such as the intended application, environmental conditions, and required durability. It is essential to select the appropriate coating to ensure the longevity and performance of the steel pipes in various industries.

Q: Can steel pipes be used for transporting liquids and gases?: Yes, steel pipes can be used for transporting both liquids and gases. Steel pipes are known for their durability, strength, and resistance to corrosion, making them suitable for a wide range of applications, including the transportation of fluids and gases. They are commonly used in industries such as oil and gas, water supply, sewage systems, and chemical processing plants. Steel pipes provide a reliable and efficient means of conveying liquids and gases over long distances, ensuring the safe and efficient transportation of these substances.

Q: What is the importance of corrosion resistance in steel pipes?: The importance of corrosion resistance in steel pipes is crucial as it helps to extend the lifespan of the pipes and maintain their structural integrity. Corrosion can weaken the pipes, leading to leaks, breakages, and ultimately, costly repairs or replacements. By preventing or minimizing corrosion, steel pipes can effectively transport fluids or gases, ensuring safety, efficiency, and longevity in various industries such as oil and gas, water supply, and construction.

Q: What are the different standards for steel pipe manufacturing?: There are several different standards for steel pipe manufacturing, including the American Society for Testing and Materials (ASTM), International Organization for Standardization (ISO), and the American National Standards Institute (ANSI). These standards outline the specifications for various aspects of steel pipe production, such as dimensions, material composition, mechanical properties, and testing procedures to ensure quality and safety.

Q: Are steel pipes suitable for underground nuclear waste storage?: Steel pipes are not suitable for underground nuclear waste storage. While steel is a strong and durable material, it is not resistant to corrosion when exposed to certain types of nuclear waste. Over time, the radioactive materials can corrode the steel pipes, leading to potential leaks and contaminating the surrounding environment. Additionally, steel pipes are not designed to withstand the extreme temperatures and pressures that can occur in nuclear waste storage facilities. Therefore, alternative materials such as corrosion-resistant alloys or concrete are typically used for underground nuclear waste storage to ensure the containment and isolation of the hazardous materials.

Q: How are steel pipes protected from damage during transportation?: Various methods are used to protect steel pipes from damage during transportation. One commonly employed technique involves applying protective coatings to the pipes. Materials like epoxy, zinc, or polyethylene are often used for this purpose, creating a barrier between the pipe and external elements. These coatings effectively prevent corrosion and damage during transit. In addition, steel pipes are frequently bundled together and secured using straps or bands. This bundling ensures that the pipes remain in place and prevents any shifting or rolling during transportation. Furthermore, padding or cushioning materials, such as foam or rubber, may be utilized to provide extra protection and reduce the risk of damage from impact or vibration. Sometimes, steel pipes are placed in crates or containers to provide further safeguarding. Crates are designed to snugly fit the pipes, offering a secure enclosure that shields against external forces. On the other hand, containers create a protective environment for the pipes, shielding them from the elements and potential impacts. To guarantee the safe transportation of steel pipes, proper handling and loading techniques are crucial. Pipes should be lifted and loaded onto transport vehicles with care, utilizing suitable equipment like cranes or forklifts to minimize the risk of damage. It is also essential to properly secure the pipes within the transport vehicle to prevent any movement or potential damage during transit. Overall, a combination of protective coatings, bundling, padding, and secure packaging or loading techniques is employed to ensure the safety of steel pipes during transportation. These measures guarantee that the pipes arrive at their destination in optimal condition, ready for use in various applications.

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