Professional Tube Weld Technology

Short Description:

At the forefront of this innovation is our advanced Submerged Arc Welding (SAW) technology, the preferred method for spirally welded pipe. This technology ensures precision, durability and efficiency, making it ideal for industries that rely on high-quality welded pipe.

Send email to us

Product Detail

Product Tags

Standard	Steel grade	Chemical composition									Tensile properties							Charpy Impact Test and Drop Weight Tear Test
		C	Si	Mn	P	S	V	Nb	Ti		CEV4)（%）	Rt0.5 Mpa Yield strength		Rm Mpa Tensile Strength		Rt0.5/ Rm	（L0=5.65 √ S0 ）Elongation A%
		max	max	max	max	max	max	max	max	Other	max	min	max	min	max	max	min
	L245MB	0.22	0.45	1.2	0.025	0.15	0.05	0.05	0.04	1)	0.4	245	450	415	760	0.93	22	Charpy impact test: Impact absorbing energy of pipe body and weld seam shall be tested as required in the original standard. For details, see the original standard. Drop weight tear test: Optional shearing area
GB/T9711-2011（PSL2）	L290MB	0.22	0.45	1.3	0.025	0.015	0.05	0.05	0.04	1)	0.4	290	495	415			21
	L320MB	0.22	0.45	1.3	0.025	0.015	0.05	0.05	0.04	1)	0.41	320	500	430			21
	L360MB	0.22	0.45	1.4	0.025	0.015				1)	0.41	360	530	460			20
	L390MB	0.22	0.45	1.4	0.025	0.15				1)	0.41	390	545	490			20
	L415MB	0.12	0.45	1.6	0.025	0.015				1)2)3	0.42	415	565	520			18
	L450MB	0.12	0.45	1.6	0.025	0.015				1)2)3	0.43	450	600	535			18
	L485MB	0.12	0.45	1.7	0.025	0.015				1)2)3	0.43	485	635	570			18
	L555MB	0.12	0.45	1.85	0.025	0.015				1)2)3	Negotiation	555	705	625	825	0.95	18
	Note:
	1）0.015 ≤ Altot ＜ 0.060；N ≤ 0.012；AI—N ≥ 2—1；Cu ≤ 0.25；Ni ≤ 0.30；Cr ≤ 0.30；Mo ≤ 0.10
	2）V+Nb+Ti ≤ 0.015%
	3）For all steel grades, Mo may ≤ 0.35%, under a contract.
	4）CEV=C+ Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/5

Company Advantage

Located in the heart of Cangzhou City, Hebei Province, the company has been a leader in welded pipe manufacturing since its founding in 1993. The plant covers an area of 350,000 square meters and is equipped with advanced machinery and technology to produce first-class products that meet international standards. With total assets of RMB 680 million and 680 skilled employees, the company is committed to excellence in every aspect of its operations.

Product Introduction

Introducing our most advanced specialty pipe welding technology, designed specifically to meet the demanding requirements of arc welding natural gas pipelines. At the forefront of this innovation is our advanced Submerged Arc Welding (SAW) technology, the preferred method for spirally welded pipe. This technology ensures precision, durability and efficiency, making it ideal for industries that rely on high-quality welded pipe.

Our specialized pipe welding technology not only improves the structural integrity of gas pipelines, it also optimizes the welding process, shortens production time and reduces costs. We understand the importance of gas pipeline systems, and our commitment to quality ensures that our products can withstand the rigorous demands of their intended applications.

As we continue to innovate and improve welding technology, we invite you to experience the reliability and performance of our professional pipe welding technology. Trust us to provide you with the highest quality welded pipe that meets your specific needs, backed by decades of expertise and commitment to customer satisfaction.

Product Advantage

1. One of the main advantages of using submerged arc welding to weld natural gas pipelines is its ability to produce high-quality tube weld with minimal defects. The submerged arc welding process enables deep penetration and smooth surfaces, which are critical to ensuring the integrity of natural gas pipelines.

2. Automation of submerged arc welding can increase productivity and reduce labor costs and worksite time.

Product shortcoming

1. One significant disadvantage is the higher initial setup costs, which can be high due to the need for specialized equipment and skilled operators.

2. The process is not as flexible as other welding methods, making it less suitable for complex geometries or thin-walled materials.

3. This limitation can create challenges in certain applications, potentially resulting in longer project schedules.

FAQ

Q1. What is Submerged Arc Welding (SAW)?

SAW is a welding process that uses a continuously fed electrode and a layer of granular fusible flux to protect the weld from contamination. This method is particularly effective on thick materials and is well suited for natural gas pipelines.

Q2. Why is SAW preferred for spiral welded pipes?

SAW technology provides deep penetration and a smooth surface, which is critical to the structural integrity of spiral welded pipe used in high-pressure applications such as natural gas transportation.

Q3. What are the benefits of using professional pipe welding technology?

Specialized tube welding techniques ensure consistent quality, reduce the risk of defects and improve the overall performance of welded products, which is essential in a safety-critical industry.

Q4. How does your company ensure the quality of welding process?

Our company adheres to strict quality control measures and employs skilled technicians trained in the latest welding techniques, including SAW, to ensure that each product meets stringent safety and performance standards.

Previous: Reliable Fire Pipe Line To Meet Your Safety Needs

Next:

Arc Welding Pipe