SMLSSteel - Premium Seamless Steel Pipes & Tubes Manufacturer

Who We Are

Shandong Xiangtong Huiyuan Metal Materials Co., Ltd. is a leading manufacturer and exporter of seamless steel pipes and metal tubing solutions based in Shandong Province, China.

Our Commitment to Excellence

Over the years, we have worked hard to promote and realize the modernization of seamless steel pipes' sales, and actively cultivated and enhanced the ability of employees' independent innovation.

We specialize in the production of hot rolled, cold rolled, and cold drawn seamless steel pipes, alloy steel tubes, boiler pipes, galvanized pipes, titanium seamless tubing, copper piping, aluminum alloy tubes, and more.

Our products meet international standards including ASTM, JIS, DIN, GB, EN, and ASME, serving industries such as construction, shipbuilding, mechanical engineering, oil & gas, refrigeration, and aerospace.

Our Products

Explore our wide range of high-performance seamless metal pipes and tubes

Cold Drawn Seamless Steel Pipe

Material: ST37, ST38, Q345B, 4140, A106 Gr.B
OD: 12-219mm
Thickness: 1.24–36.5mm
Standard: ASTM, DIN, GB
Application: Mechanical, structural, fluid systems

Titanium Seamless Pipe

Grade: TC1, TC4, Gr2, Gr5
Size: Up to 3 inch diameter
Standard: ASTM B338
Features: Corrosion-resistant, high strength-to-density ratio
Application: Aerospace, chemical, medical, marine

High Pressure Boiler Steel Pipe

Material: Q345, 16Mn, 20#
Size: 2–30mm thickness, 5–12m length
Standard: DIN1629, GB 8163
Application: Superheaters, boilers, high-pressure systems
Process: Hot rolled or cold drawn

Alloy Seamless Steel Pipe

Material: 4130, 4140, 35CrMo, 15CrMo
OD: 32–711mm
Thickness: 3.8–80mm
Standard: ASTM A335, DIN, JIS
Application: High-temperature, high-pressure environments

Hot Rolled Seamless Steel Pipe

Material: 16Mn, ST52, Q345B, A106B
OD: 12–820mm
Thickness: 2–70mm
Standard: ASTM A529M Gr50, DIN1629
Application: Mechanical parts, shipbuilding, construction

Precision Cold Rolled Steel Pipe

Material: ST35.8, ST35, ST45
OD: 12–194mm
Thickness: 2–10mm
Finish: Bright precision
Application: Auto transmission shafts, pneumatic components

Galvanized Seamless Steel Pipe

Material: ASTM A106, Q235
Size: Up to 90mm diameter
Process: Hot-dip galvanized
Standard: ASTM A106, GB/T 3091
Application: Structural, scaffolding, corrosion-prone environments

Copper Piping & Tubing

Material: T1, T2, T3, C11000, C10200
Size: 0.025–60mm thickness, 11–800mm OD
Purity: 99.9% minimum
Application: Air conditioners, refrigerators, water systems
Standard: ASTM, JIS, GB

View All Products

Quality Control

We are committed to delivering products that meet the highest international standards

Every company deeply understands that quality is the basic weapon for an enterprise to win. Quality is one of the factors that helped our business achieve success, so we strive to provide consistent, reliable, and high-performance products to our global clients.

Our quality control process includes:

Raw material inspection and certification
In-process dimensional and structural testing
Non-destructive testing (NDT) including ultrasonic and eddy current
Hydrostatic and mechanical property testing
Final product inspection and traceability
Compliance with ASTM, DIN, JIS, GB, and other international standards

Frequently Asked Questions

What types of steel pipes do you manufacture?

We produce hot rolled, cold rolled, and cold drawn seamless steel pipes, alloy steel pipes, boiler pipes, galvanized pipes, titanium tubing, copper piping, aluminum alloy tubes, and more.

What standards do your products comply with?

Our products meet ASTM, ASME, JIS, DIN, GB, EN, and API standards depending on the product type and customer requirements.

Can you provide custom sizes and specifications?

Yes, we offer OEM and ODM services and can produce pipes to your exact dimensional, material, and finishing requirements.

What is your production capacity?

We have a robust manufacturing infrastructure with high-capacity rolling mills and precision drawing lines, enabling us to fulfill large-volume international orders efficiently.

How do you ensure product quality?

We implement a comprehensive quality control system including raw material inspection, in-process testing, NDT, hydrostatic testing, and final product verification to ensure compliance with international standards.

Contact Us

For inquiries, quotes, or technical support, please visit our official website to get in touch with our team.

Visit Official Website

Shandong Xiangtong Huiyuan Metal Materials Co., Ltd.
Room 11718,17, FF, Building 5, Core Business District, East Contemporary International Plaza,
Dongchang Road, Liaocheng Economic and Technological Development Zone, Shandong Province

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