stainless steel
corrugated pipe
Stainless steel pipe & tube is all we do. Flexible corrugated pipe in 304 and 316L, sized to ISO 10380 (minimum bore ≥ 98% of DN) on ASTM A269 base tube, with end fittings and assemblies to your drawing and an EN 10204 3.1 MTC with every lot.
Unlike generic bulk tubing suppliers, TeCarve delivers fully welded end assemblies (fixed/floating ANSI/DIN/JIS flanges, BSP/NPT threaded male/female fittings, camlocks, and quick couplings) and pressure-tests finished assemblies per the applicable standard or order before dispatch.
Flexible Corrugated Stainless Steel Pipes for Fluid & HVAC Systems
Specifications
Available Sizes by Standard
Markets: Global — corrugated stainless steel hose/pipe (pipework and hose assemblies)
| DN | TeCarve OD (mm)† | TeCarve WT (mm)† | ISO 10380 Min. ID (mm)* |
|---|---|---|---|
| DN8 | 10.0 | 0.20 | 7.84 |
| DN10 | 13.5 | 0.20 | 9.80 |
| DN15 | 17.2 | 0.25 | 14.70 |
| DN20 | 21.7 | 0.25 | 19.60 |
| DN25 | 27.5 | 0.30 | 24.50 |
| DN32 | 35.0 | 0.30 | 31.36 |
| DN40 | 41.0 | 0.35 | 39.20 |
| DN50 | 52.0 | 0.40 | 49.00 |
| DN65 | 68.0 | 0.50 | 63.70 |
| DN80 | 82.0 | 0.50 | 78.40 |
| DN100 | 106.0 | 0.60 | 98.00 |
| DN150 | 156.0 | 0.80 | 147.00 |
| DN200 | 207.0 | 1.00 | 196.00 |
| DN300 | 309.0 | 1.50 | 294.00 |
*Per ISO 10380 §4.2, the standard's only dimensional requirement is: internal diameter shall not be less than 98% of the nominal size (DN) designation. †OD/WT are TeCarve's standard commercial hose construction (not an ISO-tabulated tolerance); corrugation depth/pitch specified per application (flexible hose vs. rigid expansion joint).
- Supply Length / Form: Up to 12 m per length; longer continuous coils available on request
- Available Grades: 304, 304L, 316, 316L
- Surface Finish: Annealed or bright
- Tolerance Compliance: Per ISO 10380 (min. ID requirement) and JIS G3459 / GB/T 19228 base-tube tolerance tables
Markets: Japan, Southeast Asia — base tube for corrugated pipe/hose manufacture
| OD (mm) | WT (mm) | OD Tol. | WT Tol. |
|---|---|---|---|
| 17.3 | 1.65 | ±0.40mm (±2.3%) | ±0.21mm (±12.5%) |
| 27.2 | 2.10 | ±0.40mm (±1.5%) | ±0.26mm (±12.5%) |
| 48.6 | 2.80 | ±0.36mm (±0.75%) | ±0.35mm (±12.5%) |
| 89.1 | 3.20 | ±0.67mm (±0.75%) | ±0.40mm (±12.5%) |
| 165.2 | 4.00 | ±1.24mm (±0.75%) | ±0.50mm (±12.5%) |
- Supply Length / Form: Up to 12 m per length; longer continuous coils available on request
- Available Grades: 304, 304L, 316, 316L
- Surface Finish: Annealed or bright
- Tolerance Compliance: Per ISO 10380 (min. ID requirement) and JIS G3459 / GB/T 19228 base-tube tolerance tables
Markets: China domestic & Belt-and-Road — press-fit/corrugated pipe systems
| OD (mm) | WT (mm) | OD Tol. | WT Tol. |
|---|---|---|---|
| 15 | 0.6 | ±0.15mm (±1.0%) | ±0.08mm (±12.5%) |
| 22 | 0.7 | ±0.22mm (±1.0%) | ±0.09mm (±12.5%) |
| 28 | 0.8 | ±0.28mm (±1.0%) | ±0.10mm (±12.5%) |
| 42 | 1.0 | ±0.42mm (±1.0%) | ±0.13mm (±12.5%) |
| 54 | 1.2 | ±0.54mm (±1.0%) | ±0.15mm (±12.5%) |
| 76 | 1.5 | ±0.76mm (±1.0%) | ±0.19mm (±12.5%) |
- Supply Length / Form: Up to 12 m per length; longer continuous coils available on request
- Available Grades: 304, 304L, 316, 316L
- Surface Finish: Annealed or bright
- Tolerance Compliance: Per ISO 10380 (min. ID requirement) and JIS G3459 / GB/T 19228 base-tube tolerance tables
For corrosive-process service conditions, explore our chemical and petrochemical industry solutions.
Get Your Corrugated Pipe & Hose Quote
Sourcing flexible stainless steel corrugated pipe, annular hoses, or expansion joints for gas lines, HVAC plumbing, solar thermal systems, or vibration isolation? Contact our engineering sales desk for live factory pricing, corrugation pitch options, custom braided jacketing, and flexible trial orders (100–300 kg MOQ supported).
Instant pricing, tooling setup, and raw strip material availability directly from our sales desk within 2 hours.
Short corrugated pipe samples provided for flexibility bending tests, pitch inspection, and end-fitting swaging trials.
Verify dynamic fatigue resistance, fitting welding, or assembly line fit with low-MOQ trial quantities.
Pressure testing per the applicable standard or order, with complete EN 10204 3.1 traceability.
Standards
→ Scroll right for full chemistry & mechanical data
| Grade | US (UNS) | EN (W.Nr.) | Japan (JIS) | China (GB/T) | C % (Max) | Si % (Max) | Mn % (Max) | P % (Max) | S % (Max) | Cr % | Ni % | Mo % | Tensile σb (Min.) | Yield σ0.2 (Min.) | Elongation (Min.) | Hardness (Max) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 304 | S30400 | 1.4301 | SUS304 | 06Cr19Ni10 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-11.0 | — | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | ≤92 HRB / ≤215 HV |
| 304L | S30403 | 1.4307 | SUS304L | 022Cr19Ni10 | 0.030 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | — | 485 MPa (70 ksi) | 170 MPa (25 ksi) | 35% | ≤92 HRB / ≤215 HV |
| 316 | S31600 | 1.4401 | SUS316 | 06Cr17Ni12Mo2 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | ≤95 HRB / ≤215 HV |
| 316L | S31603 | 1.4404 | SUS316L | 022Cr17Ni12Mo2 | 0.030 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 485 MPa (70 ksi) | 170 MPa (25 ksi) | 35% | ≤95 HRB / ≤215 HV |
| 321 | S32100 | 1.4541 | SUS321 | 06Cr18Ni11Ti | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | 9.0-12.0 | — | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | ≤95 HRB / ≤215 HV |
- Standards Conformance: ASTM A269 · ISO 10380 · JIS G3459 · GB/T 19228
- Delivery Condition: Solution Annealed & Pickled (AP) / Bright Annealed (BA) / Polished, or as requested.
- Mill Test Certificate: 100% full material traceability with EN 10204 3.1 MTC provided with every shipment.
Features
• Flexible yet durable
• High vibration and pressure resistance
• Easy to bend and install
• Excellent corrosion resistance
• Gas piping and flexible connectors
• Solar water heating systems
• HVAC expansion joints and pumps
• Industrial automation and sensors
Applications
For flexible piping and vibration-absorbing lines, see how to verify our corrugation forming lines, pressure testing, and raw material certificates.
Quality Control
• Leak / pressure test per standard or order
• Dimensional & mechanical property inspection
• Material traceability and PMI testing
• Conformance to global safety certifications
packaging
PVC Wrapping
& End Caps
Custom Barcoding
& Labeling
Anti-Corrosion
& Moisture Protection
Seaworthy Wooden Cases & Pallets
Corrugated Pipe Workshop & Shipping Photos
Real product, inspection, packaging and loading photos.
Tailored Solutions, Timely Fulfillment
CUSTOMIZATION
& DELIVERY
Flexible Custom Manufacturing
We customize stainless steel corrugated pipe by outer diameter, wall thickness, requested length, grade, annealed or bright finish, and single-layer or double-layer corrugated construction.
Low MOQ & Rapid Prototyping
MOQ is as low as 100–300 kg for flexible trial orders, with small batch customization and sample production supported, helping you shorten your development cycle and market entry.
Optimized Lead Time
In-stock standard sizes ship within 7–10 days. Custom specifications typically ship within 10–25 days after deposit, depending on order volume, dimensions, and surface finish. The full cycle—from inquiry and drawing confirmation through sampling, production, inspection, and dispatch—typically takes 33–55 days for custom items.
Global Logistics & On-Time Delivery
For corrugated pipe shipments worldwide, PVC wrapping and end caps are emphasized together with anti-corrosion and moisture protection for flexible formed surfaces.
How your order is made, checked and shipped
Tube forming at the partner factory
Heat treatment (annealing)
Dimensional inspection
Alloy verification with a handheld analyzer
Export packing
Container loading
What Overseas Buyers Say About TeCarve Tubing
“I've received the goods and everything is fine.”
“The goods already send to customers. I am waiting for the next order from them.”
“…there is no need of inspection this time… I trust in your product.”
Frequently Asked Questions
What is stainless steel corrugated pipe?
Stainless steel corrugated pipe features annular or helical corrugations that provide axial flexibility, absorb thermal expansion, reduce vibration transmission, and increase flow turbulence for heat transfer enhancement. It is used in flexible couplings, exhaust flex joints, and compact heat exchangers.
What grades are used for stainless steel corrugated pipe?
Corrugated pipe is available in grades 304, 316L, and 321. Grade 316L is preferred for chemical and seawater service. Grade 321 is used for high-temperature exhaust and boiler applications rated up to 850°C continuous service.
What sizes are available for corrugated stainless steel pipe?
Corrugated pipe is available in OD from 6 mm to 2000 mm with wall thickness from 0.15 mm to 25 mm. Corrugation pitch ranges from 2–5 mm for heat transfer enhancement to 8–20 mm for high-flexibility and expansion-joint applications. Custom corrugation geometry engineered to pressure and flexibility requirements.
How much axial and angular flexibility does corrugated stainless steel pipe provide?
Corrugated stainless steel pipe typically allows axial compression and extension of 10–30% of free length and angular deflection of 5–30° depending on wall thickness and corrugation geometry. This makes it ideal for vibration isolation and compensating pipe misalignment.
What are the main applications for corrugated stainless steel pipe?
Key applications include residential and commercial gas flex connectors, marine and automotive exhaust flex joints, heat exchanger tubes for turbulent-flow enhancement, corrugated stainless steel tube (CSST) underground gas distribution, and industrial vibration-damping pipe connections.
What standards govern TeCarve corrugated stainless steel pipes?
Corrugated pipe sizes are supplied to ISO 10380 dimensional guidelines (minimum bore ≥ 98% of DN). Base raw tubes conform to ASTM A269 in 304 and 316L. Rigid pressure pipe standards like ASTM A249 do not apply to flexible corrugated geometries.
What material test certificates are supplied with corrugated pipe orders?
Every shipment includes an EN 10204 3.1 Mill Test Certificate issued by the producing partner factory's QC department, verifying chemical composition and mechanical properties.
Contact TeCarve