A179 A214 Precision cold-drawn tubeprecision-drawn tube) is a high-precision steel pipe material manufactured from cold-drawn seamless tube. It belongs to the category of .
, and mechanical properties.
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ASTM A179 ASTM A214 Round Precision Seamless Cold Drawn Steel Tube |
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DIN2391, EN10305, ASTM A519, GB/T 8713 |
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ST45, ST52, E355, E355R, STKM13C, 27SiMn, SAE1020, C20, Q235B, CK45 etc. |
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BK+S Condition |
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50-299mm |
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40-250mm |
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H8-H11 |
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0.5/1000mm |
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0.2-0.4um |
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Honed tube for hydraulic cylinder, crane, Injection machine and construction machine application. |
Process Characteristics of Precision Cold-Drawn Tubes
Cold drawing refers to the process of pulling metal billets through dies at room temperature to reduce their cross-sectional area and increase their length. Compared to hot rolling or hot extrusion, cold drawing significantly improves the of the tubing. Specifically, the process characteristics of precision cold-drawn tubes include:
: During cold drawing, the metal tubing undergoes multiple drawing and straightening processes, allowing the tolerances for outer diameter and wall thickness to be controlled within tight ranges, meeting high-precision requirements.
: The surface of cold-drawn tubing is smooth, reducing the need for subsequent machining and enabling direct use in certain precision components.
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