300 SERIES STAINLESS STEEL
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The 300 series stainless steels are classified as austenitic and are hardenable only by cold working methods. These grades of stainless have approximately 18% to 30% chromium and 6% to 20% nickel as their major alloying additions. This series of stainless steel alloys are known to resist corrosion while maintaining their strength at high temperatures. While the 304 grade is the most widely used alloy of all stainless steels, the 300 series grades are inventoried in stainless steel plate, sheet, bar, pipe, tube and fittings and much more.
WELDED STAINLESS STEEL ORNAMENTAL TUBING - ASTM A554
Outside Dimension Tolerances for Square and Rectangular Tubing
Largest Specified Outside Dimension | Wall Thickness, in. | +/-, in. across Flats, Convexity or | ||
Across Flats, in. | Concavity, incl. | |||
To 1-1/4, incl. | all | 0.015 | ||
Over 1-1/4 to 2-1/2. incl. | all | 0.020 | ||
Over 2-1/2 to 5-1/2, incl. | all | 0.030 | ||
Over 5-1/2 to 8, incl. | all | 0.060 | ||
WELDED STAINLESS STEEL ORNAMENTAL TUBING - ASTM A554:
Wall Thickness Tolerance
+/- 10% of specified wall thickness
WELDED STAINLESS STEEL ORNAMENTAL TUBING - ASTM A554
Maximum Radii of Corners
Wall Thickness, in. | Radii of Corners, max, in. |
Over 0.020 to 0.049, incl. | 3/32 |
Over 0.049 to 0.065, incl. | 1/8 |
Over 0.065 to 0.083, incl. | 9/64 |
Over 0.083 to 0.095, incl. | 3/16 |
Over 0.095 to 0.109, incl. | 13/64 |
Over 0.109 to 0.134, incl. | 7/32 |
Over 0.134 to 0.156, incl. | 1/4 |
Over 0.156 to 0.200, incl. | 3/8 |
Over 0.200 to 0.250, incl. | 1/2 |
Over 0.250 to 0.375, incl. | 3/4 |
