Steel Pipe Piles / Steel Pipe Sheet Piles

Ports and harbors require robust and reliable structures to withstand the forces exerted by waves, tides, and ships. Steel pipe piles and steel pipe sheet piles are commonly used in the construction of piers, providing a strong foundation to support the weight of vessels and cargo. Additionally, they are utilized in the construction of seawalls and breakwaters, where their strength and durability are crucial for withstanding the constant impact of waves and protecting the shoreline.

Steel pipe piles and steel pipe sheet piles are essential components in various construction projects, particularly in foundation and retaining wall systems. They offer numerous advantages that make them a popular choice among engineers and contractors. Let’s explore the salient features and benefits of using steel pipe piles and steel pipe sheet piles.

1. Large Vertical-Bearing Capacity

One of the key advantages of steel pipe piles and steel pipe sheet piles is their ability to withstand heavy vertical loads. These piles are designed to support structures and transfer the loads to the underlying soil or rock layers. They offer a high vertical-bearing capacity, making them suitable for constructing deep foundations in challenging soil conditions.

2. High Bending Strength

Steel pipe piles and steel pipe sheet piles possess high bending strength, allowing them to withstand lateral forces and resist deformation. This is crucial in applications where the piles need to resist the lateral pressure exerted by soil or water. The excellent bending strength of these piles ensures stability and durability in various projects, including bridges, wharfs, and waterfront structures.

3. Excellent Environmental Performance

Steel pipe piles and steel pipe sheet piles exhibit excellent environmental performance. They are resistant to corrosion, erosion, and deterioration, even in harsh environments. This makes them an ideal choice for projects located in marine environments, contaminated soils, or areas with high groundwater levels. The durability of these piles ensures the longevity of the structure while minimizing maintenance requirements.

4. Custom Fit for Each Structure

Steel pipe piles and steel pipe sheet piles can be customized to fit the specific requirements of each structure. They are available in various sizes, diameters, and thicknesses, allowing engineers to select the most suitable pile dimensions based on the design and load requirements. This versatility ensures that the piles are tailored to provide optimal performance and efficiency in different projects.

5. Easy Production of Longer Piles and Jointing Piles

Steel pipe piles and steel pipe sheet piles can be easily produced in longer lengths compared to other piling materials. This eliminates or reduces the need for splicing or joining multiple shorter piles together, providing a continuous and seamless foundation system. Longer piles not only simplify the construction process but also enhance the structural integrity and load-bearing capacity.

6. Easy Jointing with Superstructures

Steel pipe piles and steel pipe sheet piles have a straightforward jointing process with superstructures. They can be easily connected to pile caps, pile heads, or other structural components, ensuring a secure and efficient connection. This ease of jointing simplifies the construction process and allows for faster installation, saving time and labor costs.

7. Easy Handling

Steel pipe piles and steel pipe sheet piles are lightweight compared to other types of piles, such as concrete or timber piles. This makes them easier to handle and transport on construction sites. Additionally, their modular nature allows for efficient storage and logistics during the construction process.

In conclusion, steel pipe piles and steel pipe sheet piles offer significant advantages in terms of vertical-bearing capacity, bending strength, environmental performance, customization, production of longer piles, jointing with superstructures, and ease of handling. These factors make them a preferred choice for various construction projects, including foundation systems, retaining walls, marine structures, and waterfront developments.

Specification:
UOE SAWL PIPES
Outside Diameter:Φ508mm- 1118mm (20″- 44″)
Wall Thickness: 6.0-25.4mm 1/4″-1″
Quality Standards: API,DNV,ISO,DEP,EN,ASTM,DIN,BS,JIS,GB,CSA
Length: 9-12.3m (30′- 40′)
Grades: API 5L A-X90,GB/T9711 L190-L625JCOE SAWL PIPES
Outside Diameter:Φ406mm- 1626mm (16″ – 64″ )
Wall Thickness:6.0- 75mm (1/4″ – 3″ )
Quality Standards:API,DNV,ISO,DEP,EN,ASTM,DIN,BS,JIS,GB,CSA
Length:3-48m
Grades:API 5L A-X100, GB/T9711 L190-L690
Tolerance of Outside Diameter and Wall Thickness

Tolerance of Outside Diameter and Wall Thickness

Types	Standard
Types	SY/T5040-2000	SY/T5037-2000	SY/T9711.1-1977	ASTM A252	AWWA C200-97	API 5L PSL1
Tube end OD deviation	±0.5%D	±0.5%D	-0.79mm~+2.38mm	<±0.1%T	<±0.1%T	±1.6mm
Wall thickness	±10.0%T	D<508mm, ±12.5%T	-8%T~+19.5%T	<-12.5%T	-8%T~+19.5%T	5.0mm<T<15.0mm, ±0.11
Wall thickness	±10.0%T	D>508mm, ±10.0%T	-8%T~+19.5%T	<-12.5%T	-8%T~+19.5%T	T≥15.0mm, ±1.5mm

Chemical Composition and Mechanical Properties

Standard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
Standard	Grade	C	Mn	Si	S	P	Yield Strength(Mpa)	Tensile Strength(Mpa)
GB/T700-2006	A	0.22	1.4	0.35	0.050	0.045	235	370
	B	0.2	1.4	0.35	0.045	0.045	235	370
	C	0.17	1.4	0.35	0.040	0.040	235	370
	D	0.17	1.4	0.35	0.035	0.035	235	370
GB/T1591-2009	A	0.2	1.7	0.5	0.035	0.035	345	470
	B	0.2	1.7	0.5	0.030	0.030	345	470
	C	0.2	1.7	0.5	0.030	0.030	345	470
BS En10025	S235JR	0.17	1.4	–	0.035	0.035	235	360
	S275JR	0.21	1.5	–	0.035	0.035	275	410
	S355JR	0.24	1.6	–	0.035	0.035	355	470
DIN 17100	ST37-2	0.2	–	–	0.050	0.050	225	340
	ST44-2	0.21	–	–	0.050	0.050	265	410
	ST52-3	0.2	1.6	0.55	0.040	0.040	345	490
JIS G3101	SS400	–	–	–	0.050	0.050	235	400
JIS G3101	SS490	–	–	–	0.050	0.050	275	490
API 5L PSL1	A	0.22	0.9	–	0.03	0.03	210	335
	B	0.26	1.2	–	0.03	0.03	245	415
	X42	0.26	1.3	–	0.03	0.03	290	415
	X46	0.26	1.4	–	0.03	0.03	320	435
	X52	0.26	1.4	–	0.03	0.03	360	460
	X56	0.26	1.1	–	0.03	0.03	390	490
	X60	0.26	1.4	–	0.03	0.03	415	520
	X65	0.26	1.45	–	0.03	0.03	450	535
	X70	0.26	1.65	–	0.03	0.03	585	570

Types of galvanized steel pipe

STANDARDS	PRODUCTS	RANGES
IS:1239 (Part-I)	Mild Steel Tubes, Tubular	15mm NB – 150mm NB
IS:1161	Mild Steel pipe trusses for Structural	15mm NB – 200mm NB
IS:3601	Mild Steel tubes for Mechanical & General Eng. purpose	20mm x 0.80mm to 165.10 x 7.00 mm
IS:3589	ERW Pipes for water Gas & Sewage	168.3 x 4.00 mm to 219.1 x 7.00mm
IS:9295	Steel Tubes for Idlers for Belt conveyors	63.5 x 4.00 mm to 219.1 x 7.0 mm
IS:4270	Steel Tubes for Water Wells	114.3 x 5.00mm to 219.1mm x 7.1mm
IS:7138	Steel Tubes for furniture	20.0 x .60mm to 60.0 x 2.0mm
IS:4923	Hollow Steel sections for structural purpose	12.5 x 12.5 x 0.80 to 150 x 150 x 6.0mm 10 x 20 x 0.80mm to 150 x 200 x 6.0mm
IS:3074	Steel Tubes for Automobile purpose	19.7 x 1.00mm to 101.6 x 6.0mm
BS:1387	Screwed & Socket Steel Tubes & Tubular	½”NB to 6″NB 2.00 mm – 5.40 mm wall thick
BS:3601	Steel Pipes & Tubes for pressure purpose	½”NB to 6″NB 2.00 mm – 7.00 mm wall thickness
BS:6323	Steel tubes for mechanical & general engineering purposes	21.3″ to 219.1mm OD wall thickness-1.60-7.00 mm

FAQ

What are steel pipe piles and steel pipe sheet piles?
Steel pipe piles and steel pipe Z sheet pile are components used in foundation and retaining wall systems to support vertical loads and resist lateral forces. They are typically made of steel and possess unique properties suitable for various construction applications.
What is the vertical-bearing capacity of steel pipe piles and steel pipe sheet piles?
Steel pipe piles and steel pipe sheet piles offer a large vertical-bearing capacity, allowing them to support heavy loads and transfer them to the underlying soil or rock layers.
Are steel pipe piles and steel sheet pile resistant to corrosion?
Yes, these piles exhibit excellent resistance to corrosion, erosion, and deterioration, ensuring long-term durability and environmental performance.
Can steel pipe piles and steel pipe sheet piles be customized for each structure?
Yes, these piles can be customized in terms of size, diameter, and thickness to meet the specific requirements of each structure, ensuring optimal performance and efficiency.
Are steel pipe piles and steel pipe sheet piles lightweight and easy to handle?
Yes, these piles are relatively lightweight compared to other types of piles, making them easier to handle, transport, and store on construction sites.

It is important to consult with a professional engineer or contractor for specific design considerations and recommendations based on the project requirements.