Труба стали углерода ДТК безшовная | Структурная механическая стальная трубка 20 #

Product Overview

DTC 20 # carbon steel seamless pipe is a high ‑quality structural steel tube manufactured via hot ‑rolling and cold ‑drawing piercing technology, with no welded joint on the pipe body. The uniform wall thickness and excellent mechanical properties make it ideal for structural applications and machining. Our seamless pipes are widely used in machinery manufacturing, structural supports, automotive components, equipment fabrication and general engineering projects.

Core Product Advantages

• Seamless Integral Structure: No weld seam, uniform mechanical properties throughout the pipe
• Excellent Machinability: 20 # carbon steel grade offers good cutting and drilling performance
• Uniform Wall ThicknessPrecise thickness control for consistent structural strength
• High Tensile Strength: Reliable load ‑ bearing capacity for structural applications
• Precise Dimensions: Tight tolerances for accurate machining and assembly
• Versatile Applications: Suitable for machining, bending, welding and fabrication

Available Steel Grades

• 20 # carbon steel – standard structural and machining grade
• 45 # carbon steel – high ‑strength mechanical grade
• Q355B low ‑alloy steel – high ‑strength structural grade

Technical Specifications

• Material: 20 #, 45 #, Q355B carbon steel
• Production Process: Hot ‑ rolled / Cold ‑ drawn seamless piercing
• Outer Diameter: 10mm ‑ 219mm
• Wall Thickness: 2mm ‑ 30mm
• Standard Length: 6m, 9m, 12m (custom cut ‑ t‑ length available)
• Surface Treatment: Black (as ‑ rolled), Galvanized, Oiled, Painted
• Tolerance: OD ± 0,5%, WT ± 10%
• Executive Standard: GB/T 8162, ASTM A53, EN 10210, JIS G3445

Application Scenarios

• Machinery parts and components manufacturing
• Structural supports and frames
• Automotive and vehicle components
• Equipment fabrication and engineering
• Construction steel structure
• Hydraulic cylinder tubes
• Bearing and shaft applications
• General mechanical engineering

Quality Assurance

DTC structural seamless steel pipes are manufactured under strict ISO 9001 quality management systems and comply with national and international steel standards. Every batch undergoes chemical composition analysis, tensile strength testing, hardness testing, dimensional inspection and surface quality verification before delivery. We provide complete material test reports (MTR) for engineering bidding and project acceptance.

Contact us for size selection, grade options and bulk‑ order quotation!