ASTM A554 TP316L Stainless Steel Square Tube
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ASTM A554 is the standard specification for stainless steel mechanical tubing. ASTM A554 TP316L welded mechanical tubing is produced by flattening steel and using an automated welding process (without the use of filler material). In this grade, ASTM A554 TP316L stainless steel round tubing is the most common shape. A554 TP316L stainless steel square tubing has a square cross-section.
These tubes are available in sizes up to 16 inches in diameter and with wall thicknesses exceeding 0.51 mm. TP316L tubing in this series can be cut, beveled, and threaded as needed. Before shipment, ASME SA554 TP316L stainless steel welded tubes undergo various chemical composition requirements and testing procedures to ensure their suitability for high-temperature and high-pressure applications. For more information or pricing on TP316L A554 tubing, please feel free to contact us. Email: info@gneestainless.com


ASTM A554 TP316L Stainless Steel Pipe Specifications
Specifications: ASTM A554 TP316L / SA554 TIS
Pipe Wall Thickness Schedule: SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS.
Outer Diameter: 9.5mm - 139.7mm Welded Pipe Sizes: 6NB to 1200NB
Wall Thickness: 0.6 - 3.05mm
Grades: ASTM A554 (MT304, MT316) JIS G3446 (SUS304TK, SUS316TK) CNS 5802 (304TK, 316TK)
SA 554 TP 316L Welded Tube Chemical Composition
| Grade | Mo | C | Si | P | Mn | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| ASTM A554 316L | min. | 2.0-3.0 | – | – | – | – | – | 16.0 | 10.0 | – |
| max. | 0.035 | 0.75 | 0.045 | 2.0 | 0.030 | 18.0 | 14.0 | – | ||
Mechanical Properties of ASTM A554 Grade 316L ERW Tube
| Grade | Yield Strength 0.2% Proof (MPa) min | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| ASTM A554 316L | 170 | 485 | 40 | 95 | 217 |
SA 554 UNS S31603 Mechanical Tubing Physical Properties
| Grade | Thermal Conductivity (W/m.K) | Mean Coefficient of Thermal Expansion (m/m/0C) | Specific Heat 0-1000C (J/kg.K) | Density (kg/m3) | Elastic Modulus (GPa) | Electrical Resistivity (n.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| at 1000C | at 5000C | 0-1000C | 0-3150C | 0-5380C | |||||
| ASTM A554 316L | 16.3 | 21.5 | 15.9 | 16.2 | 17.5 | 500 | 8000 | 193 | 740 |
Heat Treatment Of ASTM A554 Grade Mt316 Mechanical Tubing
| Heat Treatment Process | Temperature Range |
|---|---|
| Stress Relieving | 425–870°C (800–1600°F) |
| Pickling and Passivation | Not applicable (surface treatment) |
| Annealing (Solution Annealing) | 1010–1120°C (1850–2050°F) |
| Weld Annealing | 1010–1120°C (1850–2050°F) |
SA 554 Grade TP316L EFW Tubing Applications
High Pressure Applications
Chemical Refinery
High Temperature Application
Nuclear Power Plants
Water Pipe Line
Oil and Gas Industry
Paper & Pulp Companies
ASTM A554 MT316 Welded Stainless Steel Mechanical Tubing Price
| Size | Price in USD |
|---|---|
| OD 1-1/4 X 0.065 | $ 2.24 |
| 3 X 1 X 0.120 | $ 2.08 |
| 1.25 X 1.25 X 0.083 | $ 2.27 |
| 6 X 2 X 0.120 | $ 2.28 |
| OD 1-5/8 X 0.120 | $ 2.27 |
| OD 1.5 X 0.065 | $ 2.26 |
| 1 X 1 X 0.120 | $ 2.22 |
| 1 X 1 X 0.065 | $ 2.28 |







