Welcome to Changzhou Tenjan Steel Tube Co., Ltd
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◆ Tenjan – Your Trusted Partner for Custom Seamless Alloy Steel Pipes. Scenario-based precision customization: Tailor-made round steel materials, mechanical properties, dimensional accuracy, and shapes to your exact needs—fully compliant with ASTM , DIN/EN , JIS , GOST and other international standards.
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Tailored Solutions for Unique Applications
◆ Special-Section Tubes – Hexagonal, Square, Rectangular, D-Shaped, Triangular, Lemon-shaped, Oval, and other complex cross-sections.
◆ Precision Customization – Material composition, mechanical properties, dimensional accuracy, and geometry tailored to your application.
◆Flexible Ordering – Small batches available with value-added services (machining, etc.)
◆ Tenjan – 21 Years of Expertise in Custom Seamless Carbon Steel Pipes. Integrated large-scale production from raw material customization to finished pipes, with full in-house quality control—no outsourcing.
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STKM11A Seamless Steel Tubes represent Japanese JIS standard low-carbon steel tubular products with carbon content controlled below 0.15%.
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Tailored Solutions for Unique Applications
◆Special-Section Tubes – Hexagonal, Square, Rectangular, D-Shaped, Triangular, Lemon-shaped, Oval, and other complex cross-sections.
◆ Precision Customization – Material composition, mechanical properties, dimensional accuracy, and geometry tailored to your application.
◆Flexible Ordering – Small batches available with value-added services (machining, etc.)
11SMn30 Free-Cutting Steel Seamless Tubes represent a specialized category of high-sulfur phosphorus composite free-cutting steel tubes engineered specifically for high-efficiency machining applications.
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Y15 Free-Cutting Steel Seamless Tubes represent China's GB standard high-sulfur phosphorus composite free-cutting steel tubes specifically engineered for high-volume precision machining applications.
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Seamless Tubes represent a premium-grade, high-sulfur phosphorus lead-free free-cutting steel tubing engineered specifically for automated, high-speed precision machining applications.
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09CrCuSb steel pipe, also known as ND steel Tube or Corten Steel Pipe, is a specialized corrosion-resistant seamless tube specifically designed for harsh environments.
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S355JR Low-Alloy High-Strength Seamless Steel Tubes represent European EN standard low-alloy high-strength structural steel tubes engineered for applications requiring optimal balance between strength, toughness, and cost-effectiveness.
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Q355B Low-Alloy High-Strength Seamless Steel Tubes represent Chinese GB standard low-alloy high-strength structural steel tubes engineered for general industrial applications requiring optimal balance between strength, toughness, and cost-effectiveness.
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ST52 Low-Alloy High-Strength Seamless Steel Tubes represent German DIN standard low-alloy high-strength structural steel tubes engineered for applications requiring optimal balance between strength, toughness, and cost-effectiveness.
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