SUSgoods: What is the Diameter and Thickness Tolerance of your Stainless Steel?
Our Tubes are strictly produce by ASTM A554 standard tolerance. With the strict control of outside diameter and thickness tolerance, our products can be suitable for the inner and outer casing and assemblage application.
Diameter and Thickness Tolerance of Round Tubes | |||||
Standard | Outside Diameter (mm) | Thickness (mm) | Outer Diameter Tolerance (mm) | Thickness Tolerance (mm) | Length Tolerance (mm) |
ASTM A554 | ≤12.7 | 0.51-1.24 | ±0.10 | ±10.00%T | +4.8 -0 |
| 12.7～25.4 | 0.51-1.65 | ±0.13 | |||
| 1.65-3.40 | ±0.25 | ||||
| 25.4～38.1 | 0.64-1.65 | ±0.20 | |||
| 1.65-3.40 | ±0.25 | ||||
| 38.1-50.8 | 0.64-1.24 | ±0.25 | |||
| 1.24-2.11 | ±0.28 | ||||
| 2.11-3.78 | ±0.30 | ||||
| 50.8～63.5 | 0.81-1.65 | ±0.30 | |||
| 1.65-2.77 | ±0.33 | ||||
| 63.5～88.9 | 2.77-4.19 | ±0.36 | |||
| 0.81-4.19 | ±0.36 | ||||
| 88.9~127.0 | 0.89-4.19 | ±0.51 | |||
| >4.19 | ±0.64 | ||||
| 127.0~190.5 | 1.24-6.35 | ±0.64 | |||
| >6.35 | ±0.76 | ||||
Square and Rectangular Tubes | |||||
Max Radii of Corners | Outside Diameter Tolerance | Twist Tolerance | |||
Wall Thickness (mm) | Radii of Corners, Max (mm) | Largest Normial Outside Dimension | Across Flats Across Flats Convexity or Comcavity | Outside Diameter (mm) | Tolerance (mm) |
>0.51-1.24 | 2.40 | ≤31.80 | ±0.38 | ≤12.70 >12.70-38.10 >38.10-63.50 >63.50-101.60 >101.60-152.40 >152.40 | 1.53 2.30 2.84 3.82 7.54 11.37 |
>1.24-1.65 | 3.20 | ||||
>1.65-2.11 | 3.60 | >31.80-63.50 | ±0.51 | ||
>2.11-2.42 | 4.80 | ||||
>2.42-2.77 | 5.20 | >63.5-139.70 | ±0.76 | ||
>2.77-3.40 | 5.60 | ||||
>3.40-3.96 | 6.40 | >139.70-203.20 | ±1.52 | ||
>3.96-5.08 | 9.50 | ||||
>5.08-6.35 | 12.70 | ||||
