ASTM A179 Cold Drawn Seamless Tube is a specifically engineered for high-performance heat exchangers, condensers, and boiler systems.This product delivers exceptional reliability in demanding thermal transfer environments.
Specifications & Properties
Material: Seamless cold-drawn low-carbon steel
Primary Application: Tubular heat exchangers, condensers, and similar heat transfer apparatus.
Standard Dimensions: Outer Diameter (O.D.) range typically from 6.0 mm to 114.0 mm, with Wall Thickness (W.T.) from 1 mm to 15 mm.
Chemical Composition: Controlled low carbon content (0.06%-0.18%), manganese (0.27%-0.63%), with low limits for sulfur and phosphorus (≤0.035%) to ensure material purity and performance.
Mechanical Performance: Minimum tensile strength of 325 MPa, yield strength of 180 MPa, and elongation ≥35%, providing excellent structural integrity.
Temperature Range: Suitable for stable operation within a broad temperature spectrum, particularly in high-pressure steam systems.
Manufacturing Process: Tubes undergo a final cold-drawing process followed by heat treatment above 650°C to relieve stresses and optimize the ferrite-pearlite microstructure.
Quality Assurance: Strict testing protocols including flattening tests, flaring tests, and hydrostatic tests ensure each tube meets the standard's rigorous requirements for high-pressure, leak-free service
Advantages & Features
Superior Surface Finish: The cold-drawn process yields smooth, scale-free inner and outer surfaces, enhancing heat transfer efficiency and minimizing flow resistance
High Precision: Tight dimensional tolerances on outer diameter and wall thickness facilitate precise fabrication and assembly.
Excellent Formability: Demonstrates outstanding performance in cold bending, flaring, and flattening tests without cracking, allowing for complex component shaping.
Robust Performance: Combines high strength with good ductility and hardness control (≤72 HRB), ensuring long-term durability under thermal cycling and pressure
Typical Applications
ASTM A179 Cold Drawn Seamless Tubes are the material of choice across multiple critical industries:
Power Generation & Boilers: Essential for economizers, reheater tubes, and other boiler components where efficient heat exchange under high temperature and pressure is paramount.
Chemical & Petrochemical Processing: Used in heat exchanger networks for processing and transferring various media, benefiting from its consistent performance
Oil & Gas: Employed in condenser systems and heat recovery units, where reliable sealing and pressure containment are crucial.
General Mechanical Engineering: Also suitable for hydraulic cylinders, bearing sleeves, and other precision mechanical parts requiring high-quality seamless tubing
Compliance & Certification
ASTM A179 also typically meet the equivalent ASME SA-179 specification
They are available in various delivery conditions (annealed, normalized) and can be supplied with plain, beveled, or threaded ends to suit project requirements. Third-party inspections (e.g., TUV, SGS) are commonly offered to validate compliance.
This tubing represents a foundational component for engineers designing efficient, safe, and durable heat transfer systems, backed by a long-established and trusted material standard
contact
Kevin
Tianjin shenzhoutong steel pipe co.,ltd
kevin@tjshenzhoutong.com
Mob/whatsapp/wechat +86 15267768016
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