Home > Welded Tubes > DIN 17457 Stainless Steel Welded Industrial Tubes
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.
Key characteristics include:
Used in: Process equipment • tanks • machine parts • heat exchangers • skids
Used in: Industrial frames • exhaust components • utility piping • machinery housings
Welded Stainless Steel Tubes for Industrial & General Engineering Use
| Section | Parameter | Technical Specification — DIN 17457 Welded Tubes |
|---|---|---|
| Standard | Specification | DIN 17457 — Welded stainless steel tubes for general industrial applications |
| Material Class | Austenitic SS | X5CrNi18-10 (1.4301 / 304), X2CrNi18-9 (1.4307 / 304L), X5CrNiMo17-12-2 (1.4401 / 316), X2CrNiMo17-12-2 (1.4404 / 316L), X6CrNiTi18-10 (321), X6CrNiNb18-10 (347) |
| Ferritic SS | X6Cr17 (1.4016 / 430), X2CrTi12 (1.4512 / 409) | |
| Product Form | Tube Type | Welded stainless steel tubes |
| Supply Condition | As-welded / Pickled & Passivated | |
| Manufacturing Process | Welding | TIG / Plasma / HF / Laser welding |
| Weld Bead | Bead removed or bead rolled | |
| Heat Treatment | Solution annealed (austenitic) / Annealed (ferritic) | |
| Dimensional Range | Outside Diameter (OD) | 6 mm – 610 mm |
| Wall Thickness (WT) | 0.6 mm – 12.0 mm | |
| Length | 6 m / 12 m / cut-to-length | |
| Mechanical Properties (Typical) | Tensile Strength | Austenitic: 520–720 MPa • Ferritic: 430–550 MPa |
| Yield Strength | Austenitic: ≥ 205 MPa • Ferritic: ≥ 275 MPa | |
| Elongation | Austenitic ≥ 35% • Ferritic ≥ 20% | |
| Service Conditions | Pressure | Not primarily pressure-rated (industrial service) |
| Temperature | Suitable for ambient to elevated temperatures | |
| Corrosion Resistance | Austenitic | Excellent general corrosion resistance |
| Ferritic | Good oxidation & SCC resistance | |
| Testing Requirements | Mandatory | Eddy Current / Dimensional / Visual |
| Optional | Hydrostatic, UT, RT, PMI | |
| End Finish | Tube Ends | Plain / Deburred / Beveled |
| Surface Finish | Mill, Pickled, Polished (if required) | |
| Typical Applications | Industrial | Fabrication, machinery, process equipment |
| Structural | Frames, supports, skids | |
| Utilities | Fluid transfer (non-pressure critical) | |
| HSN Code | Stainless Tubes | 73064000 |
| 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 |
Industrial Fabrication
Process Equipment
Plant Construction
Automotive & OEM
Standard OD × WT Range (Industrial & Fabrication Use)
| Outside Diameter (OD) | Wall Thickness (WT) | Typical Industrial Use |
|---|---|---|
| 6 – 19 mm | 0.6 – 1.2 mm | Instrumentation frames, light fabrication |
| 19 – 38 mm | 0.8 – 2.0 mm | Machine structures, utility piping |
| 38 – 60 mm | 1.2 – 3.0 mm | Process equipment, skids |
| 60 – 114 mm | 2.0 – 5.0 mm | Heavy fabrication, supports |
| 114 – 610 mm | 3.0 – 12.0 mm | Industrial headers, structural use |
Standard Lengths: 6 m / 12 m | Custom Supply: Cut-to-length as per fabrication drawings | Shapes: Round • Square • Rectangular (on request)
DIN 17457 tubes are designed for industrial service, not mandatory pressure certification.
Austenitic Grades (304 / 316 / 321 / 347)
Ferritic Grades (409 / 430)
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 (SCC resistant) |
| Oxidizing environments | Excellent | Excellent |
| Coastal atmosphere | 316 recommended | Limited |
Manufacturing Welding
Heat Treatment & Fabrication Behaviour
INOX supplies DIN 17457 tubes ready for fabrication without additional processing.
Mandatory Tests
Optional / Buyer-Specified Tests
Certification: EN 10204 3.1 (3.2 on request)
| Requirement | Recommended Standard |
|---|---|
| Industrial fabrication | DIN 17457 |
| Pressure piping | EN 10217-7 |
| Decorative / ornamental | ASTM A554 |
| Heat exchanger | ASTM A249 |
| Grade Group | Indicative Price (INR/kg) | Indicative Price (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 |
(Prices vary with OD, WT, finish & inspection scope.)
| Surface Condition | Recommended Use |
|---|---|
| As-welded | General fabrication |
| Pickled & passivated | Corrosion-sensitive industrial areas |
| Polished OD | Visible equipment & skids |
1. Fabrication-Focused Manufacturing
2. Wide Grade Selection for Cost Optimization
3. Ready for OEMs, Fabricators & EPC Contractors
4. Lifecycle Cost Advantage
DIN 17457 avoids unnecessary over-specification while delivering dependable performance in industrial environments—reducing material and fabrication cost.
Industrial Fabrication
Process Equipment
Plant Construction
Automotive & OEM
DIN 17457 stainless steel welded tubes supplier | DIN stainless steel industrial pipe manufacturer | Austenitic stainless steel welded tubes DIN | Ferritic stainless steel welded tubes DIN
Supply Regions: India • UAE • Saudi Arabia • Qatar • Oman • Kuwait • Africa • Europe • Southeast Asia
Standard Packaging
Export / Project Packaging
Documentation
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
steel@inoxsteelindia.in
+91 9930796690
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?
INOX STEEL INDIA supplies DIN 17457 stainless steel welded industrial tubes in austenitic and ferritic grades including 304, 316, 321, 347, 409 and 430. Ideal for industrial fabrication, machinery, skids and process equipment. EN 10204 certified and export ready.