A519 Grade 4140 Mechanical Tubing
ASTM A519 Grade 4140 seamless mechanical tubing, 88 mm OD with 10.2 mm wall, for machinery shafts. Classified HTS 7304.59.80.20: seamless alloy steel, circular, correct OD/wall specs. Heat-treated for high tensile strength applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
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Import Tips & Compliance
• ASTM A519 material cert proves mechanical tubing specs and seamless process
• Cold-drawn finish doesn't change classification from hot-finished tubes
• Shaft end-use keeps it as tube; not shaft until machined to final form
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