Klein UNIBIT Step-Drill Bit Sharpening Instructions
Weight of steel tubing in lbs. per foot. 10.6802 X Wall Thickness X (Diameter – Wall Thickness) Yield Strength comparison (Approximate PSI) Mild steel tube = 40,000. Black iron pipe = 47,000. Stainless Steel = 65,000. 4130 Chromoly = 101,000. Gauge 22 21 20 19 18 17 16 15 14 13 12 11 10 Wall Thickness-Based on 1” Tube ................
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