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Product Overview
ASTM A554 Stainless Steel Round Tubes
ASTM A554 and JIS G3446 welded stainless steel round tubes, grades 304/304L, 316/316L, 201/202, for mechanical and structural applications.
Product Introduction
A stainless steel round tube to ASTM A554 and JIS G3446, grades 304/304L, 316/316L, 201/202, for mechanical and structural applications.
STAINLESS STEEL ROUND TUBES
Standard: ASTM A554 / JIS G3446
Material: 304/304L, 316/316L, 201, 202, 430, 409/409L
General Size Scope
| Item | Specification |
|---|---|
| Outer Diameter | 6.0 mm ~ 406.4 mm (max 16 inch) |
| Wall Thickness | Minimum 0.51 mm (0.020 inch); common range: 0.6-6.0 mm |
| Standard Length | 6000 mm fixed length; random length 4000-7000 mm; custom cut-to-length |
| Tube End | Deburred plain end |
| Surface Options | Mill finish, Bright Annealed, No.4 Hairline (180#/240#/320#/400#), Mirror polish |
Dimensional Tolerances (A554 Round Tube)
| Parameter | Permissible Tolerance |
|---|---|
| Outer Diameter | OD ≤25.4 mm: ±0.13 mm; 25.4-38.1 mm: ±0.20 mm; 38.1-50.8 mm: ±0.25 mm; 50.8-63.5 mm: ±0.30 mm; 63.5-88.9 mm: ±0.36 mm; 88.9-127 mm: ±0.51 mm; >127 mm: ±1.0% OD |
| Wall Thickness | ±10% of nominal wall thickness |
| Straightness | Max. 0.76 mm per 0.9 m |
| Ovality | ≤2% of nominal OD |
Popular Commercial Size Table (Round Tube ASTM A554)
| OD (mm) | Nominal Size (inch) | Common Wall Thickness (mm) | Theoretical Weight TP304 (kg/m) |
|---|---|---|---|
| 12.7 | 1/2" | 0.6 / 0.8 / 1.0 | 0.18 / 0.23 / 0.28 |
| 15.9 | 5/8" | 0.8 / 1.0 / 1.2 | 0.29 / 0.36 / 0.42 |
| 19.05 | 3/4" | 0.8 / 1.0 / 1.2 / 1.5 | 0.36 / 0.44 / 0.52 / 0.64 |
| 22.23 | 7/8" | 1.0 / 1.2 / 1.5 | 0.52 / 0.61 / 0.75 |
| 25.4 | 1" | 1.0 / 1.2 / 1.5 / 2.0 | 0.60 / 0.71 / 0.87 / 1.14 |
| 31.75 | 1-1/4" | 1.0 / 1.2 / 1.5 / 2.0 | 0.76 / 0.90 / 1.11 / 1.45 |
| 38.1 | 1-1/2" | 1.2 / 1.5 / 2.0 / 2.5 | 1.09 / 1.34 / 1.76 / 2.17 |
| 42.4 | — | 1.5 / 2.0 / 2.5 | 1.50 / 1.97 / 2.43 |
| 44.45 | 1-3/4" | 1.5 / 2.0 / 2.5 | 1.58 / 2.08 / 2.56 |
| 50.8 | 2" | 1.5 / 2.0 / 2.5 / 3.0 | 1.81 / 2.38 / 2.94 / 3.48 |
| 63.5 | 2-1/2" | 2.0 / 2.5 / 3.0 | 3.00 / 3.70 / 4.38 |
| 76.2 | 3" | 2.0 / 2.5 / 3.0 / 4.0 | 3.62 / 4.47 / 5.30 / 6.91 |
| 88.9 | 3-1/2" | 2.5 / 3.0 / 4.0 | 5.24 / 6.22 / 8.17 |
| 101.6 | 4" | 2.5 / 3.0 / 4.0 / 5.0 | 6.00 / 7.12 / 9.32 / 11.46 |
| 114.3 | 4-1/2" | 3.0 / 4.0 / 5.0 | 8.02 / 10.51 / 12.94 |
| 127.0 | 5" | 3.0 / 4.0 / 5.0 | 8.97 / 11.77 / 14.49 |
| 139.7 | 5-1/2" | 3.0 / 4.0 / 5.0 | 9.91 / 13.02 / 16.04 |
| 152.4 | 6" | 3.0 / 4.0 / 5.0 | 10.86 / 14.28 / 17.59 |