Home > Welded Tubes > ASTM A554
Tubes designed for strength, beauty, and durability across architectural, structural & decorative applications.
ASTM A554 defines welded stainless steel tubes manufactured specifically for mechanical and ornamental use. These tubes are known for high formability, excellent corrosion resistance, superior surface polish, strong weld integrity, lightweight structural strength, and aesthetic appearance for visible installations.
From architectural facades to interior railings, furniture frames, automotive trims, and designer structures, ASTM A554 tubes deliver performance that other metals simply cannot match.
These are welded stainless steel tubes produced with precision strip, tight dimensional control, and polished finishes suitable for visible, high-aesthetic, or structural applications.
| Feature | Mechanical Tubes | Ornamental Tubes |
| Purpose | Load-bearing, structural | Aesthetic, decorative |
| Strength | Higher (thicker WT) | Medium |
| Finish | Mill / polish | 400 grit / Mirror / HL / PVD |
| Shape | Round, square, rectangle | Square, rectangle, custom |
| Usage | Frames, supports | Railings, facades, interiors |
ASTM A554 covers both mechanical and ornamental tubes depending on grade and finish.
304 / 304L — The Most Versatile Grade
Excellent strength, good corrosion resistance, ideal for indoor & outdoor architecture.
316 / 316L — Marine & Coastal Specialists
Molybdenum improves pitting resistance; used in luxury interiors, coastal projects, swimming pools and chemical environments.
201 / 202 — Economical Ornamental Grades
Cost-effective grades suitable for indoor decorative fabrication such as furniture and light railings.
409 / 430 — Automotive & Industrial Grades
Ferritic stainless steels used for automotive trims, exhausts and industrial applications.
| OD (mm) | WT (mm) | Application |
| 6 – 19 | 0.5 – 1.2 | Furniture, display systems |
| 19 – 50.8 | 0.7 – 2.0 | Railings, gates, canopies |
| 50.8 – 76.2 | 1.2 – 3.0 | Structural frames |
| 76.2 – 168 | 1.5 – 6.0 | Heavy ornamental columns |
| Finish | Best For |
| Mill Finish | Hidden structural parts |
| 180 / 240 Grit | Furniture & indoor fabrication |
| 320 / 400 Grit | Architectural interiors |
| 8K Mirror | Luxury interiors |
| Hairline (HL) | Elevations & partitions |
| PVD Coated | Premium decor |
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) |
| 304/304L | 515–630 | 205–215 |
| 316/316L | 530–700 | 215–230 |
| 201/202 | 480–550 | 200–240 |
| 409/430 | 380–520 | 170–210 |
| Grade | Finish | Price (INR/kg) |
| 201/202 | Polished | ₹160 – ₹240 |
| 304/304L | Polished | ₹240 – ₹380 |
| 316/316L | Polished | ₹380 – ₹550 |
| Mirror / PVD | Special | Premium add-on |
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