AS1528.1 Stainless Steel Sanitary Tubes
SANITARY TUBE AS1528.1 were designed specifically for tube installation in the dairy industry, but they are now commonly used in food and beverage processing and the pharmaceutical industries where crevice-free hygienic conditions are required. and also fulfills the quality requirement of ASTM A270 and 3A standard, using the best-quality stainless steel of TP304/304L/316L. It is a requirement for application in the Australia and New Zealand Food/Dairy Industy.
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| Production Standard: | AS1528.1 |
| Material Grades: | TP304/304L, TP316/316L |
| Tube OD: | 12.7mm – 219.1mm |
| Wall Thickness: | 1.20mm – 2.60mm |
| Tube Type: | Seamless or Welded |
| Surface: | ≤20μ-in Ra (0.5 μm) ID, ≤30μ-in Ra (0.8 μm) OD |
| Test Standard: | ASTM A270 |
| Test Content: | Flange & Flaring Test, Reverse Flattening Test, Roughness Test, Hydrostatic/Pneumatic Test, Eddy Current Test (NDT), Surface Finish Verification, Dimensional Inspection, Material Certification |
| Certificate: | ISO 9001:2015, PED 2014/68/EU, AD 2000-W0 |
- Production Standard:
- Material Grades:
- Tube OD:
- Wall Thickness:
- Tube Type:
- Surface:
- Test Content:
- Certificate:
- AS1528.1
- TP304/304L , TP316/316L
- 12.7mm - 219.1mm
- 1.20mm - 2.60mm
- Seamless or Welded
- ≤20μ-in Ra (0.5 μm) ID, ≤30μ-in Ra (0.8 μm) OD
- Flange & Flaring Test, Reverse Flattening Test, Roughness Test, Hydrostatic/Pneumatic Test, Eddy Current Test (NDT), Surface Finish Verification, Dimensional Inspection, Material Certification
- ISO 9001:2015, PED 2014/68/EU, AD 2000-WO
| Size OD | Tolerance of OD | Wall Thickness | Tolerance on Wall Thickness | Tolerances on Length | Weight KG/M |
|---|---|---|---|---|---|
| 12.70 | +/- 0.1 | 1.20 | +/- 10.0% | +3, -0 | 0.344 |
| 15.88 | +/- 0.1 | 1.20 | +/- 10.0% | +3, -0 | 0.439 |
| 19.05 | +/- 0.1 | 1.20 | +/- 10.0% | +3, -0 | 0.534 |
| 25.40 | +/- 0.1 | 1.60 | +/- 10.0% | +3, -0 | 0.949 |
| 38.10 | +/- 0.1 | 1.60 | +/- 10.0% | +3, -0 | 1.103 |
| 50.80 | +/- 0.1 | 1.60 | +/- 10.0% | +3, -0 | 1.455 |
| 63.50 | +/- 0.1 | 1.60 | +/- 10.0% | +3, -0 | 1.961 |
| 76.20 | +/- 0.1 | 1.60 | +/- 10.0% | +3, -0 | 2.467 |
| 101.60 | +/- 0.1 | 1.60 | +/- 10.0% | +3, -0 | 2.973 |
| 114.30 | +/-0.38 | 2.00 | +/- 10.0% | +3, -0 | 5.595 |
| 139.70 | +/-0.38 | 2.00 | +/- 10.0% | +3, -0 | 6.860 |
| 168.30 | +/-0.76 | 2.60 | +/- 10.0% | +3, -0 | 10.732 |
| 219.10 | +/-1.55 | 2.60 | +/- 10.0% | +3, -0 | 14.022 |
| Element | 304 (ASTM A270/A269) | 316L (ASTM A270/A269) | Key Difference |
|---|---|---|---|
| Chromium (Cr) | 18.0–20.0% | 16.0–18.0% | 316L has slightly less Cr but compensates with Mo. |
| Nickel (Ni) | 8.0–10.5% | 10.0–14.0% | Higher Ni in 316L improves acid resistance. |
| Molybdenum (Mo) | Not Present | 2.0–3.0% | Mo in 316L resists chlorides & harsh chemicals (e.g., bleach, salt). |
| Carbon (C) | ≤0.08% | ≤0.03% | 316L’s ultra-low C prevents weld decay. |
| Manganese (Mn) | ≤2.0% | ≤2.0% | Similar in both grades. |
| Silicon (Si) | ≤1.0% | ≤1.0% | Similar in both grades. |
| Phosphorus (P) | ≤0.045% | ≤0.045% | Minimized for weldability. |
| Sulfur (S) | ≤0.03% | ≤0.03% | Minimized for corrosion resistance. |
| Iron (Fe) | Balance (~67–71%) | Balance (~62–68%) | 316L has less Fe due to higher Ni/ |
