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1.MATERIAL:Seamless Steel Tube, Type SAE-4140 or (42CrMo4), per ASTM A519 or BS EN 10297-1:2003, Aircraft Quality, Hot Rolled, Supplied Condition: Annealed, Ends-plain and square cut.2. ADDITIONAL REQUIREMENTS:2.1 Steel Making Process:Electric Arc Furnace + Ladle Furnace + Vacuum Degassed - (EAF + LF + VD to guaranty: Sulfur 0.035% max., Phosphor 0.035% max.2.3 100% Ultrasonic Test: ASTM E213, defect not larger than 10% nominal Wt.3. Tube Size:OD = 317.5 mm (+/- 3.1mm)Wt = 19 mm (-1.9 / +1.9mm) Length = 2385 mm (-0 / +10mm)Straightness = 1:1000. Qty-20Mton (first article)serial production-200MtonPrice CFR (israel port ASHDOD)