ASME A554
ASME A554 Welded Stainless Steel Mechanical Tubing
ASME A554 is the standard specification for welded stainless steel mechanical tubing used in structural and ornamental applications. These tubes are manufactured for superior mechanical strength, surface finish, corrosion resistance, and aesthetic appeal, making them ideal for architectural, automotive, furniture, and industrial applications.
ASME A554 tubing is produced in round, square, rectangular, and custom shapes, offering high durability and excellent forming and polishing characteristics. Austenitic, ferritic, and duplex grade options ensure the right balance of strength, corrosion resistance, and cost-effectiveness for diverse requirements.
Key Features
Excellent corrosion resistance and durability
High mechanical strength
Superior surface finish & aesthetic appeal
Available in polished, matte, and custom finishes
Excellent formability & weldability
Suitable for decorative & load-bearing applications
Available in round, square, rectangular & custom shapes
Available ASME A554 Stainless Steel Grades
Austenitic Grades
- MT-301
- MT-302
- MT-304 / TP304 (most commonly used)
- MT-304L /
- TP304L
- MT-305
- MT-309S
- MT-310S
- MT-316 / TP316
- MT-316L / TP316L
- MT-317
- MT-317L
- MT-321
- MT-330
- MT-347
Ferritic Grades
- MT-405
- MT-409 / TP409
- MT-410
- MT-429
- MT-430 / TP430
- MT-434
- MT-436
- MT-439
Austenitic-Ferritic (Duplex) Grades
- S31803
- S32003
- S32101
- S32202
Product Specifications
| Property | Specification |
|---|---|
| Standard | ASME A554 |
| Product Form | Welded Mechanical Tubing |
| Shapes | Round, Square, Rectangular, Custom Profiles |
| Finishes | 180, 240, 320, 400 Grit, Mirror, Satin, Brushed |
| Weld Condition | As Welded / Bright Annealed |
| Tolerance | As per ASME A554 requirements |
| Material Grades | Austenitic / Ferritic / Duplex Stainless Steel |
Available Size Range
| Shape | Size Range |
|---|---|
| Round Tubes | 6 mm to 508 mm OD |
| Square Tubes | 10×10 mm to 300×300 mm |
| Rectangular Tubes | 10×20 mm to 250×400 mm |
| Wall Thickness | 0.5 mm to 12 mm |
| Length | Up to 12 meters (custom cut lengths available) |
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength | 485 – 750 MPa (depending on grade) |
| Yield Strength | 170 – 450 MPa |
| Elongation | 30% Min |
| Hardness (HRB) | 90 Max (Austenitic) |
Manufacturing & Finishing
High-frequency welding
Solution annealed (for select grades)
Weld bead removal (internal & external on request)
Polished (Mirror, Satin, Hairline, Matte)
Dimensional accuracy & straightness control
Applications
Architectural & Decorative Tubing
Handrails & Railings
Automotive Exhaust Systems
Furniture & Interior Design
Structural & Fabrication Works
Food & Pharmaceutical Equipment
Conveyor & Support Systems
Marine & Chemical Environments (316/316L & Duplex)