TP316L Stainless Steel Pipe Tube / DN10 -DN400 Stainless Steel Hollow Tube ASTM A312 / ASTM A789
| Products | TP316L Stainless Steel Pipe |
| Type | Seamless Pipe |
| Grade | 304 304L 309S 310S 316L 321 317L 316Ti 2205 2507 904L |
| Out Diameter | OD10 - 406mm |
| Length | 6m or custom cutting any length as request |
| Thickness | SCH10 SCH40 SCH80 SCH160 or unstandard size |
| Loading Port | Shanghai Port |
| MOQ | 500 kgs |
| Packing | standard Packing suit for export |
Chemical Composition of 316L stainless Steel Pipe
| Grade | UNS Designation | C,% (Max) | Mn,% Max | P,% Max | S,% Max | Si,% Max | Cr,% | Ni,% | Mo,% |
| TP316L | S31603 | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
Mechanical Properties of 316L stainless Steel Pipe
| Alloy | Temper | Tensile Strength Min, psi (MPa) | Yield Strength, 0.2% Offset, min, psi (MPa) | Elongation in2 in. or 50mm (or 4D), min, % |
| UNS S31603 | Solution Annealed | 70(485) | 25 (170) | 35 |
Tolerances in Wall Thickness
| NPS Designator | Tolerance, % from Nominal | |
| Over | Under | |
| 1/8 to 2-1/2 incl., all t/D ratios | 20 | 12.5 |
| 3 to 18 inch., t/D up to 5% incl. | 22.5 | 12.5 |
| 3 to 18 inch., t/D>5% | 15 | 12.5 |
| 20 and larger, welded, all t/D ratios | 17.5 | 12.5 |
| 20 and larger, seamless, t/D up to 5% incl. | 22.5 | 12.5 |
| 20 and larger, seamless, t/D>5% | 15 | 12.5 |
Note: t = Nominal Wall Thickness; D = Ordered Outside Diameter
Tolerances in Outside Diameter
| NPS Designator | Tolerances in Outside Diameter | |||
| Over | Under | |||
| in. | mm | in. | mm | |
| 1/8 to 1-1/2, incl | 1/64 (0.015) | 0.4 | 1/32 (0.031) | 0.8 |
| Over 1-1/2 to 4, incl | 1/32 (0.031) | 0.8 | 1/32 (0.031) | 0.8 |
| Over 4 to 8, incl | 1/16 (0.062) | 1.6 | 1/32 (0.031) | 0.8 |
| Over 8 to 18, incl | 3/32 (0.093) | 2.4 | 1/32 (0.031) | 0.8 |
| Over 18 to 26, incl | 1/8 (0.125) | 3.2 | 1/32 (0.031) | 0.8 |
| Over 26 to 34, incl | 5/32 (0.156) | 4 | 1/32 (0.031) | 0.8 |
| Over 34 to 48, incl | 3/16 (0.187) | 4.8 | 1/32 (0.031) | 0.8 |
Straightness Tolerances
| Specified OD, in. | Specified Wall Thickness, in. | Maximum Curvature in any 3ft, in. | Maximum Curvature i Total Length, in. |
| Up to 5.0 incl. | Over 3% OD to 0.5, incl. | 0.03 | 0.010 x length, ft |
| Over 5.0 to 8.0, incl. | Over 4% OD to 0.75, incl. | 0.045 | 0.015 x length, ft |
| Over 8.0 to 12.75, incl. | Over 4% OD to 1.0, incl. | 0.06 | 0.020 x length, ft |
Tests of TP316L Stainless Steel Seamless Pipe
1.Chemical Analysis (ASTM E345)
2.Mechanical Properties (Tension: ASTM E8)
3.Nondestructive Test
3.1:100% Hydrostatic Test
3.2:According to ASTM A450/A450M



