Welcome to Changzhou Tenjan Steel Tube Co., Ltd
Sunny@tenjan.com
Your Trusted Partner from
Design to Delivery
Certified Quality Assurance
from Production to Delivery
100+ Certified Grades
Global Standards Compliance
(ASTM, EN, DIN, JIS)
Trusted Partner to Industry Leaders Worldwide, 6-Continent Coverage
99.2% On-Time Delivery
15% Production Buffer for Emergency Orders
Your Trusted Partner from
Design to Delivery
Certified Quality Assurance
from Production to Delivery
100+ Certified Grades
Global Standards Compliance
(ASTM, EN, DIN, JIS)
Trusted Partner to Industry Leaders Worldwide
6-Continent Coverage
Since 2004, Tenjan Steel Tube has been a vertically integrated manufacturer of precision steel tubing. Specialize in seamless tubes, cold-drawn profiles, cold drawn welded Tube and custom-shaped steel tubes (including square, rectangular, hexagonal, and complex geometries), compliant with ASTM, EN, DIN, and JIS standards.
Our alloy and carbon steel tubes serve critical applications in automotive, high-pressure boilers, construction machinery, hydraulics, and more. With ISO-certified quality control, PMI and NDT inspections, we ensure material integrity. Offering full process control from raw material to finished product, we provide tailored, high-precision tubing for OEMs and engineering projects globally.
Our vertically integrated production system ensures:
○ Customizable Materials: Support for 100+ grades (Carbon Steel & Alloy Steel), compliant with ASTM, EN, DIN,and JlS standards.
○ Flexible Dimensions: Outer Diameter (OD) from 10-108mm (0.39"-4.25") and wall thickness from 1-20mm (0.04"-0.79")
From conventional profiles like hexagonal, square, and rectangular tubes to complex cross-sectional designs—including internal/external profiled tubes and specialty polygonal shapes—Tenjan delivers precision-engineered solutions for all your custom tubing needs.
Special-Shaped Alloy Steel Tubes Special-Shaped Carbon Steel Tubes○ Custom Shape Manufacturing: Round, Square, Rectangular, Triangular, Hexagonal, Trapezoidal, Oval & Irregular Profiles
○ High-Strength Drawn Profiles: Cold Work Hardened & Corrosion Resistant
○ Applications: Automotive Components, Agricultural Machinery, OEM Drawn Parts, Special-Shaped Steel Sections
○ Manufactured with Premium Steel from Baosteel & ShaGang Group (Top-Tier Suppliers)
○ High Dimensional Accuracy (±0.1mm) | Enhanced Strength Through Cold Work Hardening | Mirror-Grade Surface Finish
Tenjan | ISO-Certified Manufacturer of Rebar Mechanical Couplers & Splicing Sleeves.
○ Custom with seamless steel tube technology as a co-developer of China’s National Standard JG/T163-2013 for rebar splicing systems.
○ Tenjan specializes in custom mechanical couplers for global reinforcement projects. Our splicing sleeves, compliant with ASTM, BS, and EN standards, are precision-engineered to meet international steel grades.
Our vertically integrated production system ensures:
○ Customizable Materials: Support for 100+ grades (Carbon Steel & Alloy Steel), compliant with ASTM, EN, DIN,and JlS standards.
○ Flexible Dimensions: Outer Diameter (OD) from 10-108mm (0.39"-4.25") and wall thickness from 1-20mm (0.04"-0.79")
From conventional profiles like hexagonal, square, and rectangular tubes to complex cross-sectional designs—including internal/external profiled tubes and specialty polygonal shapes—Tenjan delivers precision-engineered solutions for all your custom tubing needs.
○ Custom Shape Manufacturing: Round, Square, Rectangular, Triangular, Hexagonal, Trapezoidal, Oval & Irregular Profiles
○ High-Strength Drawn Profiles: Cold Work Hardened & Corrosion Resistant
○ Applications: Automotive Components, Agricultural Machinery, OEM Drawn Parts, Special-Shaped Steel Sections
○ Manufactured with Premium Steel from Baosteel & ShaGang Group (Top-Tier Suppliers)
○ High Dimensional Accuracy (±0.1mm) | Enhanced Strength Through Cold Work Hardening | Mirror-Grade Surface Finish
Tenjan | ISO-Certified Manufacturer of Rebar Mechanical Couplers & Splicing Sleeves.
○ Custom with seamless steel tube technology as a co-developer of China’s National Standard JG/T163-2013 for rebar splicing systems.
○ Tenjan specializes in custom mechanical couplers for global reinforcement projects. Our splicing sleeves, compliant with ASTM, BS, and EN standards, are precision-engineered to meet international steel grades.
Why settle for generic materials when we can align specifications directly to your application? By focusing on only what you need, we deliver superior cost efficiency without compromising quality—saving you time and resources.
Our surplus capacity acts as a safety net, eliminating risks of bottlenecks or missed deadlines—critical for projects with strict timelines.
•Advanced metalworking: Piercing, pickling, heat treatment & cold forming
• Precision verification: Dual NDT (Ultrasonic/Eddy Current) + material testing (Tensile/Chemical)
• 24/7 lab monitoring of 60+ parameters ensuring product consistency
IATF16949: Automotive-grade quality for precision parts.
TS (Pressure Pipe): Safety compliance for critical infrastructure (e.g., pipelines, boilers).
ISO9001: General excellence in process management.
Plus optional third-party validation (TÜV/SGS) for added credibility in regulated markets like aerospace, energy, or medical devices.
Our enterprise has been cooperating with Changzhou Tenjan Steel Tube Co., Ltd. for many years, mainly adopting Tenjan Steel Tube's drive shafts for agricultural machinery. The application of Tenjan St...
Read More
In geological exploration work, the quality of pipes directly affects the exploration efficiency and accuracy. China Coal Group faces serious challenges when conducting exploration work under complex ...
Read More
As a key component affecting the handling safety and driving experience of heavy trucks, the quality of the steering mechanism is directly related to the performance of the vehicle under complex trans...
Read More
In the field of automotive parts processing, seamless steel tubes play a pivotal role. Its high precision, high strength and good corrosion resistance make it an ideal material for many automobile par...
Read More
With the promotion of clean energy, Sifang Clean Energy is actively innovating in the field of small boilers, striving to provide users with efficient and environmentally friendly energy solutions. In...
Read More
Our enterprise has been cooperating with Changzhou Tenjan Steel Tube Co., Ltd. for many years, mainly adopting Tenjan Steel Tube's drive shafts for agricultural machinery. The application of Tenjan St...
Read MoreIn geological exploration work, the quality of pipes directly affects the exploration efficiency and accuracy. China Coal Group faces serious challenges when conducting exploration work under complex ...
Read MoreAs a key component affecting the handling safety and driving experience of heavy trucks, the quality of the steering mechanism is directly related to the performance of the vehicle under complex trans...
Read MoreIn the field of automotive parts processing, seamless steel tubes play a pivotal role. Its high precision, high strength and good corrosion resistance make it an ideal material for many automobile par...
Read MoreWith the promotion of clean energy, Sifang Clean Energy is actively innovating in the field of small boilers, striving to provide users with efficient and environmentally friendly energy solutions. In...
Read More
In the world of steel manufacturing, precision and perf...
Read More
Galvanized steel is widely used in industries ranging f...
Read More
In the world of steel manufacturing, precision matters....
Read More
In the steel pipe manufacturing industry, finish rolled...
Read MoreIn the world of steel manufacturing, precision and performan...
In the steel pipe manufacturing industry, finish r...
As an important raw material for industrial manufa...
Home Tubes and Pipes Capabilities Case Studies Blogs About Get a Quote
Seamless Steel Tubes Special-Shaped Seamless Steel Tubes Cold Drawn Steel Profiles & Bars Cold-Drawn Welded Tubes Rebar Couplers
Oil & Petrochemical Industry Automotive & Motorcycle Components Mechanical Engineering Components Mining Construction Support Structures High-Pressure Boiler System Construction Machinery Geological Drilling Agricultural Machinery Parts Industrial Fluid Transfer Systems
© 2024 Changzhou Tenjan Steel Tube Co., Ltd All rights reserved. Privacy StatementTerms-ConditionsSitemap
