Welded Steel Pipe

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Welded Steel Pipe

Product Origin:	China
MinimumOrder Quantity:	3 tons
Packaging Details:	Standard export packaging or as per customer requirements.
Delivery Time:	3 – 5 days
Payment Method:	Letter of Credit, Telegraphic Transfer, Western Union Remittance
Supply Capacity:	6,000 tons per month
Delivery Method:	FOB/CFR/CNF/CIF/EXW

Product Description

Overview of Welded Steel Pipe Products：

Core Definition and Processes:

Welded steel pipes: Pipes made by using steel plates or strips as raw materials, forming them through cold bending or hot bending, and then joining the seams using different welding methods.

Main processes: High-frequency welding (HFW/ERW), laser welding, submerged arc welding (SAW).

Main form: Longitudinal submerged arc welded (LSAW) pipes.

Spiral steel pipes: A special form of welded steel pipes, made from hot-rolled steel strip coils as raw materials, rolled by a spiral forming machine with the weld presenting a spiral line.

Main processes: Submerged arc welding (SAW), with double-sided submerged arc welding (DSAW) being the most common.

Core Value Proposition:

Longitudinal welded pipes: With their high production efficiency, excellent dimensional accuracy and stable quality, they dominate in the fields of building structures and general fluid transportation.

Spiral steel pipes: Due to their cost-effectiveness in large-diameter manufacturing, good circumferential strength and the advantage of continuous production, they have become the first choice for long-distance transportation pipelines and large structural foundations.

Standards and grades of welded steel pipes:

Standard	Steel Grade			Coating
EN 10217-1	P195TR1/2	P235TR1/2	P265TR1/2	Galvanizing, heat preservation, plastic coating, 3PE, TPEP, epoxy coal tar pitch
EN 10217-2	P235GH	P265GH	16Mo3
EN 10219-1	S235JRH	S275JOH/J2H	S355J2H/K2H
EN 10255	B	C	D
EN 10224	L245NB/MB	L290NB/MB	L360NB/MB/QB/QC
EN 10217-7	1.4301	1.4307	1.4401
EN 10217-7	1.4404	1.4541
ASTM A53	Grade A	Grade B		Galvanizing, heat preservation, plastic coating, 3PE, TPEP, epoxy coal tar pitch
ASTM A500	Grade A	Grade B	Grade C
ASTM A135	Grade A	Grade B
API5L	PSL1:A.B	PSL1:X42-X80	PSL2:X42R-X80R
API5L	PSLX52	PSLX60	PSLX65
ASTM A252	Grade 1	Grade 2	Grade 3
ASTM A500	Grade B	Grade C
API5L	PSL1:A,BX42-X80	PSL2:B,BX42-X80
ASTM A312/312M	TP304(304L)	TP316(316L)	TP321(321H)
ASTM A358/358M	S30400	S30403	S31600/S31603
GB/T3091-2025	Q195	Q235B	Q355B	Galvanizing, heat preservation, plastic coating, 3PE, TPEP, epoxy coal tar pitch
GB/T3091-2025	L245	L290
GB/T6728-2025	Q235B	Q355B	Q460B
GB/T13793-2016	Q195	Q235B	Q345B
GB/T9711-2023	L245/N/Q	L290/N/Q	L690/N/Q
GB/T12771-2019	12Cr18Ni9(s30408)	06Cr19Ni10(s30403)	s31608
GB/T12771-2019	s31603	06Cr18Ni11Ti(s32168

Midwest Steel Supply Services

Precision Manufacturing and Lightweighting

Excellent material performance and process adaptability.

Technical solutions, not just products. Provide lightweight solutions from material selection, structural design to process optimization.

Extremely high dimensional accuracy and consistency.

Performance and precision guarantee. Ensure extremely high dimensional accuracy, consistent mechanical properties and excellent surface quality of the pipes through precision manufacturing.

Excellent performance-to-weight ratio

Stable supply and quality. Guarantee highly stable quality between product batches and realize fast, on-time and flexible delivery.

Service Highlights - Precision Processing and Customization

Accurate "on-time delivery" capability.

It is not just about being on time, but about being able to deliver the required specifications of steel pipes in precise batches and sequences according to the customer's project progress. This can greatly reduce the customer's inventory pressure and capital occupation, and ensure the continuity of their production.

In-depth "technical collaboration and customization" capability

We can not only produce standard products, but also provide technical support such as material selection, process optimization, and non-standard customization according to the customer's special working conditions (such as high pressure, corrosion, and extreme temperatures), upgrading from a "supplier" to a "solution partner"..

Technological Collaborative Innovation

Coating Upgrade Solution

Corrosion prevention and thermal insulation options are available, such as galvanizing/PE/TPEP, which significantly enhances corrosion resistance to pass a 1000-hour salt spray test.

Digital Selection System

Using AI technology, based on the application parameters input by customers, quickly match and generate customized seamless anti-corrosion steel pipe solutions.

24 - hour Sample Testing Service

Small - batch test coils are provided to support customers' process verification, ensuring that the products meet specific requirements.

Technical Response and Delivery

24 - hour Technical Response

Guigang provides round - the - clock technical support to ensure that customers' problems are responded to and resolved promptly.

72 - hour Express Delivery

It is promised that only 72 hours are needed from order receipt to product delivery, meeting the needs of urgent orders.

Free Sample Acquisition

Customers can make an inquiry with one click on the official website and quickly obtain free samples for testing.

Customized Dedicated Line Service

A dedicated customization hotline is provided to enable customers to communicate directly with the technical team and fulfill personalized requirements.