Bright Annealed Sanitary Seamless Tube ASTM A270 TP316L 1.4404
ASTM A270 specification is covering the grade of welded, seamless austenitic/ferrite and heavily cold worked welded SS sanitary tubing. Those are intended for use in the food industry, dairy industry and are also having special surface finishes.
A270 TP316L sanitary stainless pipe works well in elevated pressure applications and showcases enhanced strength allowing it to be very robust in harsh environments. The pipes are also tolerant to pitting by acids and crevice corrosion in the system.
ASTM A270 TP316L sanitary stainless pipe usually refers to the small pipe diameters, normally from 1/2” to 2 1/2”, thickness from 0.049 inch (1.24mm) to 0.15 inch (3.81mm). The maximum outer diameter of ASTM A270 TP316L tubing is 12 inch (316L.8 mm). ASTM A270 TP316L tubing using inch pound as the standard unit of measure. ASTM A270 TP316L Tube wall thickness tolerance shall not vary more than 12.5%.
Advantage of Austenitic:
Austenitic steel grades are very formable and weldable. These sanitary tubes are made of a highly corrosion-resistant, maintenance-free substance that provides hardness at low temperatures and maintains mechanical properties even when temperatures climb to high levels. Austenitic steel grades have 30-minute fire resistance in stainless steel systems without extra fire safety.
ASTM A270 TP316L Stainless Steel Tube Chemical Composition
| Grade | UNS | C | Mn | P | S | Si | Cr | Ni | Mo |
| ASTM A270 TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
ASTM A270 TP316L Mechanical Properties
| Material | Heat | Temperure | Tensile Strength | Yield Strength | Elongation %, Min |
| Treatment | Min. | Ksi (MPa), Min. | Ksi (MPa), Min. |
| | º F(º C) | | |
| Asme A270 TP316L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
TP316L Equivalent
| Grade | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| TP316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316LS11 / 316LS13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17‐11‐02 / Z3CND18‐14‐03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
Physical properties of ASTM A270 TP316L stainless steel in the annealed condition
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) |
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C |
| ASTM A270 TP316L | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Applications:
- Chemical and petrochemical
- Power generation
- Renewable energy
- Pulp and Paper
- Process piping
- Pharmaceutical
- Food and beverage
- Oil and gas
- Mining
- Water/waste
- Marine Industry
- Fertilizers
Size Inspection
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