Home > Welded Tubes > DIN 17457
Reliable welded tubing for industrial fabrication, machinery & general engineering
DIN 17457 defines welded stainless steel tubes intended for industrial and general engineering applications where corrosion resistance, dimensional stability, and fabrication ease are required—but where full pressure certification is not mandatory.
INOX STEEL INDIA supplies DIN 17457 tubes engineered for machinery, equipment fabrication, plant construction, skids, frames, and industrial utility systems.
These are factory-welded stainless steel tubes produced with controlled welding and heat treatment for non-pressure or moderate-duty service.
Typical Grades: 304/304L, 316/316L, 321, 347
Used in: Process equipment, tanks, machine parts, heat exchangers, skids
Typical Grades: 430, 409
Used in: Industrial frames, exhaust components, utility piping, machinery housings
| Feature | DIN 17457 | EN 10217-7 | ASTM A554 |
| Primary Use | Industrial / fabrication | Pressure service | Mechanical / ornamental |
| Pressure Rating | No | Yes | No |
| Finish Focus | Industrial | Industrial / pressure | Decorative / polished |
| Typical Applications | Machinery, frames | Steam, gas, fluids | Railings, architecture |
| OD Range | WT Range | Typical Industrial Use |
| 6 – 19 mm | 0.6 – 1.2 mm | Instrumentation frames |
| 19 – 38 mm | 0.8 – 2.0 mm | Machine structures |
| 38 – 60 mm | 1.2 – 3.0 mm | Process equipment |
| 60 – 114 mm | 2.0 – 5.0 mm | Heavy fabrication |
| 114 – 610 mm | 3.0 – 12.0 mm | Industrial headers |
Standard Lengths: 6 m / 12 m
Custom Supply: Cut-to-length as per fabrication drawings
Shapes: Round, Square, Rectangular (on request)
Typical Service Temperature: Ambient to ~400°C (grade dependent)
| Service Environment | Austenitic Grades | Ferritic Grades |
| General industrial fluids | Excellent | Good |
| Humid / mild chemical | Very good | Good |
| Chloride exposure | Good (316 preferred) | Very good |
| Oxidizing environments | Excellent | Excellent |
| Coastal atmosphere | 316 recommended | Limited |
Certification: EN 10204 3.1 (3.2 on request)
| Grade Group | INR/kg | USD/kg |
| Austenitic 304/304L | ₹ 210 – 300 | $ 2.6 – 3.7 |
| Austenitic 316/316L | ₹ 330 – 470 | $ 4.0 – 5.7 |
| Stabilized 321 / 347 | ₹ 350 – 520 | $ 4.2 – 6.3 |
| Ferritic 409 / 430 | ₹ 150 – 250 | $ 1.8 – 3.0 |
| Surface Condition | Recommended Use |
| As-welded | General fabrication |
| Pickled & passivated | Corrosion-sensitive areas |
| Polished OD | Visible equipment & skids |
No. It is intended for non-pressure or moderate-duty industrial service. 304/304L for general use, 316/316L for higher corrosion, 409/430 for economical industrial applications. Yes—for industrial fabrication where decorative finish is not required. Yes—TÜV, BV, DNV, LR on request. Is DIN 17457 pressure rated?
Which grades are most common?
Can DIN 17457 replace ASTM A554?
Do you provide third-party inspection?