Large Diameter Welded Pipes Steel Tubular Piles

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We are pleased to launch our innovative product steel tubular piles, designed to provide excellent practicality for a variety of applications, especially cofferdams. These piles feature a curved or circular overlapping design for unparalleled strength and durability, effectively enclosing and preventing the ingress of water, soil and sand.

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Steel pipe piles are manufactured using the highest quality materials and advanced technology, making them highly reliable for any construction project. These piles are commonly used in cofferdams and their strong structural design ensures the safety and stability required for foundations and other infrastructure works.

Standard	Steel Grade	Chemical Constituents (%)						Tensile Property						Charpy （V notch） Impact Test
		c	Mn	p	s	Si	Other	Yield Strength （Mpa）		Tensile Strength （Mpa）		（L0=5.65 √ S0 ）min Stretch Rate （%）
		max	max	max	max	max	Other	min	max	min	max	D ≤ 168.33mm	D ＞ 168.3mm
GB/T3091 -2008	Q215A	≤ 0.15	0.25 ＜ 1.20	0.045	0.050	0.35	Adding Nb\V\Ti in accordance with GB/T1591-94	215		335		15	> 31
	Q215B	≤ 0.15	0.25-0.55	0.045	0.045	0.035		215		335		15	> 31
	Q235A	≤ 0.22	0.30 ＜ 0.65	0.045	0.050	0.035		235		375		15	>26
	Q235B	≤ 0.20	0.30 ≤ 1.80	0.045	0.045	0.035		235		375		15	>26
	Q295A	0.16	0.80-1.50	0.045	0.045	0.55		295		390		13	>23
	Q295B	0.16	0.80-1.50	0.045	0.040	0.55		295		390		13	>23
	Q345A	0.20	1.00-1.60	0.045	0.045	0.55		345		510		13	>21
	Q345B	0.20	1.00-1.60	0.045	0.040	0.55		345		510		13	>21
GB/ T9711- 2011 （PSL1）	L175	0.21	0.60	0.030	0.030		Optional adding one of Nb\V\Ti elements or any combination of them	175		310		27		One or two of the toughness indexof impact energy and shearing area may be chosen. For L555, see the standard.
	L210	0.22	0.90	0.030	0.030			210		335		25
	L245	0.26	1.20	0.030	0.030			245		415		21
	L290	0.26	1.30	0.030	0.030			290		415		21
	L320	0.26	1.40	0.030	0.030			320		435		20
	L360	0.26	1.40	0.030	0.030			360		460		19
	L390	0.26	1.40	0.030	0.030			390		390		18
	L415	0.26	1.40	0.030	0.030			415		520		17
	L450	0.26	1.45	0.030	0.030			450		535		17
	L485	0.26	1.65	0.030	0.030			485		570		16
API 5L （PSL 1）	A25	0.21	0.60	0.030	0.030		For grade B steel, Nb+V ≤ 0.03%; for steel ≥ grade B,optional adding Nb or V or their combination, and Nb+V+Ti ≤ 0.15%	172		310		（L0=50.8mm）to be calculated according to the following formula: e=1944·A0 .2/U0 .0 A: Area of sample in mm2 U: Minimal specified tensile strength in Mpa		None or any or both of the impact energy and the shearing area is required as toughness criterion.
	A	0.22	0.90	0.030	0.030			207		331
	B	0.26	1.20	0.030	0.030			241		414
	X42	0.26	1.30	0.030	0.030			290		414
	X46	0.26	1.40	0.030	0.030			317		434
	X52	0.26	1.40	0.030	0.030			359		455
	X56	0.26	1.40	0.030	0.030			386		490
	X60	0.26	1.40	0.030	0.030			414		517
	X65	0.26	1.45	0.030	0.030			448		531
	X70	0.26	1.65	0.030	0.030			483		565

Our large diameter welded pipes are the backbone of these steel pipe piles, enhancing their reliability and performance. Through meticulous welding and quality control processes, we ensure each pile meets the highest industry standards. These pipes offer exceptional flexibility and durability, allowing steel pipe piles to withstand extreme conditions and harsh environments.

As an industry-leading manufacturer, Cangzhou Spiral Steel Pipes Group Co., Ltd. has state-of-the-art facilities covering an area of over 350,000 square meters. With an asset value of up to 680 million yuan, we invest in cutting-edge technology and equipment to ensure the highest quality production. Furthermore, our dedicated workforce of 680 employees ensures that every product undergoes stringent quality checks before reaching the hands of our valued customers.

Our factory has an annual output of 400,000 tons of spiral steel pipes and an output value of 1.8 billion yuan. This milestone demonstrates our commitment to delivering service excellence and meeting the needs of our valued customers locally and globally.

Steel pipe piles combined with our large diameter welded pipes provide excellent versatility, making them suitable for a wide range of applications. In addition to cofferdams, our piles are widely used in bridge construction, port infrastructure and other marine projects. The unique curved or rounded design of these piles ensures optimal water and soil retention while providing a strong structural frame.

Our company's commitment to quality, professionalism and customer satisfaction drives us to continually improve our manufacturing processes and develop innovative solutions. We adhere to strict quality control standards to ensure our products are of the highest quality and meet or exceed your expectations.

In summary, steel tubular piles are revolutionizing the construction industry with the strength and durability of our large diameter welded pipe. With their ability to withstand challenging conditions and their specialized use in cofferdams, these piles provide unparalleled protection and support. Partner with Cangzhou Spiral Steel Pipes Group Co., Ltd. to get top-quality products that enhance your projects and provide long-lasting solutions.

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