
Stainless Steel Flexible Hose: Technical Specifications, Pressure Ratings & Industrial Selection Guide (Europe 2026)
What Is a Stainless Steel Flexible Hose?
A stainless steel flexible hose is a corrugated metal hose made from stainless steel (AISI 304 or AISI 316), reinforced with single or double stainless steel braid, designed for high-pressure and high-temperature fluid transfer applications.
It is widely used in:
Steam lines
Hydraulic systems
Chemical processing plants
HVAC installations
Power generation facilities
Gas and oil pipelines
In demanding European industrial environments, stainless steel braided hoses provide superior durability compared to rubber or PTFE hoses.
Why Stainless Steel Flexible Hoses Are Preferred in Europe
European industries operate under strict safety and pressure equipment regulations. A properly engineered metal corrugated hose ensures:
✔ High pressure resistance (up to 210 bar)
✔ Wide temperature range (-270°C to +600°C)
✔ Excellent vibration absorption
✔ Thermal expansion compensation
✔ 100% leak-tight performance
✔ Long service life
Compliance with EN ISO 10380 and PED (Pressure Equipment Directive) is critical for EU projects.
Technical Specifications
|
Parameter |
Typical Value |
|
Material |
AISI 304 / AISI 316 Stainless Steel |
|
Pressure Rating |
0.1 – 210 bar |
|
Burst Pressure |
Approx. 4x working pressure |
|
Temperature Range |
-270°C to +600°C |
|
Standard |
EN ISO 10380 |
|
Braid Type |
Single / Double Braid |
Important:
Working pressure must be reduced at elevated temperatures according to material strength reduction factors.
Material Selection: 304 vs 316 Stainless Steel Hose
AISI 304
General industrial use
Water, air, non-aggressive fluids
AISI 316
Superior corrosion resistance
Chemical plants
Marine environments
Offshore applications
For aggressive media, AISI 316 stainless steel flexible hose is strongly recommended.
Applications in European Industry
Steam Systems
High temperature and pressure fluctuations require metal expansion capability.
Chemical Processing
Corrosion-resistant stainless steel braided hoses prevent leaks and contamination.
Hydraulic Power Units
Double-braided hoses are used to handle dynamic pressure loads.
HVAC & District Heating
Flexible connections absorb vibration and thermal movement.
Oil & Gas
Fire-resistant and high-pressure-rated metal hoses ensure operational safety.
Pressure & Mechanical Load Considerations
A stainless steel flexible hose must be selected based on:
Maximum working pressure
Peak temperature
Media compatibility
Minimum bend radius
Axial, lateral, and angular movement
Vibration frequency
Certification requirements
Metal hoses are NOT designed to withstand torsional stress.
Improper installation reduces fatigue life significantly.
Minimum Bend Radius & Fatigue Life
Each hose diameter (DN) has a defined minimum bend radius.
Exceeding this limit may cause:
Corrugation cracking
Braid failure
Leakage
Premature fatigue failure
Dynamic applications require larger bend radii than static installations.
Stainless Steel Flexible Hose Price in Europe (2026)
The price of a stainless steel flexible hose depends on:
DN size
Length
Braid layers
Material grade (304 vs 316)
End fittings (DIN, ANSI, BSP, NPT)
CE / PED certification
Low-cost hoses may have thinner walls and reduced braid density, leading to shorter service life.
Total Cost of Ownership (TCO) should be considered rather than unit price.
Stainless Steel Flexible Hose vs Rubber Hose
|
Feature |
Rubber Hose |
Stainless Steel Flexible Hose |
|
High Temperature |
Limited |
Excellent |
|
High Pressure |
Moderate |
High |
|
Fire Resistance |
No |
Yes |
|
Chemical Resistance |
Limited |
High |
|
Service Life |
Shorter |
Longer |
For heavy-duty industrial applications, metal hoses provide higher operational reliability.
Frequently Asked Questions (FAQ)
What pressure can a stainless steel flexible hose handle?
Up to 210 bar depending on diameter and braid configuration.
Can stainless steel hoses be used for steam?
Yes, up to +600°C with appropriate design.
Is AISI 316 better than 304?
Yes, for corrosive and marine environments.
Are stainless steel flexible hoses PED compliant?
Yes, when manufactured according to EU Pressure Equipment Directive requirements.
Conclusion
A properly engineered stainless steel flexible hose is not just a connector — it is a safety-critical pressure component in industrial systems.
Correct selection ensures:
✔ Operational safety
✔ Reduced downtime
✔ Lower maintenance costs
✔ Compliance with European standards
✔ Long-term system reliability
For industrial applications in Europe, engineering-based hose selection is essential.




