Flexible, Corrosion-resistant Hose For High-pressure Systems
Stainless steel metal hoses offer flexible, corrosion-resistant solutions for high-pressure industrial piping, ensuring durability and vibration control in demanding applications.
Stainless Steel Metal Hose is a highly durable and flexible connector designed for industrial piping systems, offering exceptional corrosion resistance and reliability under high-pressure and extreme temperature conditions. Constructed from T321 or T316L stainless steel with single or double braiding (T304 or T316), these hoses are ideal for applications in chemical processing, oil and gas, HVAC, and boiler pipeline protection. Their corrugated design ensures flexibility, while the braiding enhances pressure capacity, making them suitable for flexible piping solutions in demanding environments.
Available in sizes from 1/4” to 24” (DN6 to DN600), stainless steel metal hoses handle pressures up to 3000 psi (depending on diameter and braiding) and temperatures from -320°F to 1500°F (-196°C to 815°C). They are designed to absorb vibration, accommodate misalignment, and resist abrasion, making them perfect for pipeline vibration control. The hoses are manufactured through annular or helical corrugation processes, with welded fittings (carbon steel, stainless steel, or custom alloys) to ensure leak-proof connections. They comply with standards like ISO 10380, ASME B31.3, and EJMA, ensuring quality and safety.
The corrosion resistance of stainless steel (T316L for enhanced chemical resistance, T321 for high-temperature strength) makes these hoses ideal for handling corrosive fluids, gases, and abrasive materials in industries like petrochemicals, refineries, and power generation. The braided construction provides burst resistance, with double-braided options offering higher pressure ratings for critical applications. These hoses are flexible enough for tight spaces and can be customized with liners for high-velocity flows to reduce turbulence and wear.
Compared to rubber or PVC hoses, stainless steel metal hoses offer superior durability and temperature tolerance, though they are heavier and costlier. Their ability to resist UV, ozone, and extreme climates ensures longevity in harsh environments. They are suitable for cryogenic applications, steam lines, and high-pressure gas transfer, with fittings like flanged, threaded, or welded ends for easy integration into industrial piping systems. Rigorous testing, including hydrostatic, burst, and fatigue tests, ensures compliance with industry standards and reliability in boiler pipeline protection.
Stainless steel metal hoses address challenges like pipeline wear, corrosion, and vibration in high-throughput industrial systems. Their robust, corrosion-resistant design and flexibility make them a preferred choice for engineers seeking reliable flexible piping solutions for extreme conditions, ensuring safety, efficiency, and long-term performance in applications like chemical transfer, steam piping, and oil and gas pipelines.
These hoses are constructed from thin-walled stainless steel tubes that are formed, welded, and corrugated to add flexibility and strength.
Stainless steel metal hoses offer advantages such as high temperature resistance, corrosion resistance, and durability. They are commonly used in industries like oil and gas, chemical processing, power generation, and food processing, where there is a need for reliable and flexible hose assemblies.
These hoses can be single braided or double braided with stainless steel wire braidings for added reinforcement. The braiding provides additional strength and protection against external damage.
Stainless steel metal hoses are available in various sizes, lengths, and pressure ratings to suit different applications. They are often used for applications that require flexible connections, vibration absorption, or where there is movement or misalignment between equipment.
When selecting a stainless steel metal hose, factors such as the type of fluid or gas being conveyed, operating temperature and pressure, and compatibility with the surrounding environment should be considered.
It's important to consult with a reputable manufacturer or supplier to ensure that the stainless steel metal hose chosen meets the specific requirements of the application.
The inner tube of metal bellows hose is spiral or annular thin-wall stainless steel bellows, the outer braid mesh of bellow pipe(corrugated pipe) is made of stainless steel wire and steel belt according to certain parameters,the joints or flanges on both ends of the hose are matched to the joint or flange of the customer's pipe.
| Nominal diameter DN | Inner diameter | Outer diameter | Minimum bending | Working pressure | |||
|---|---|---|---|---|---|---|---|
| Bellows | Braid mesh | Static | Dynamic | Single braid mesh | Double braid mesh | ||
| 8 | 8.8 | 13.2 | 14.4 | 50 | 110 | 15 | 20 |
| 10 | 11.7 | 16.5 | 17.7 | 65 | 145 | 185 | 20 |
| 15 | 13.5 | 19.5 | 21.1 | 80 | 180 | 18 | 20 |
| 20 | 20.0 | 27 | 28.6 | 120 | 270 | 10 | 15 |
| 25 | 27.0 | 34.5 | 36.1 | 160 | 360 | 6.3 | 10 |
| 32 | 32.0 | 40 | 41.6 | 175 | 400 | 4.0 | 6.3 |
| 40 | 39.6 | 52 | 53.6 | 225 | 510 | 4.0 | 6.3 |
| 50 | 49.7 | 62 | 63.6 | 280 | 640 | 3.0 | 5.0 |
| 65 | 61.2 | 80.2 | 81.8 | 410 | 915 | 3.0 | 5.0 |
| 80 | 79.0 | 96.3 | 97.9 | 486 | 1030 | 3.0 | 5.0 |
| 100 | 101.2 | 119.6 | 121.2 | 610 | 1340 | 2.5 | 4.0 |
| 125 | 124.1 | 145.3 | 146.9 | 700 | 1540 | 2.5 | 4.0 |
| 150 | 149.4 | 180.8 | 182.4 | 810 | 1780 | 2.5 | 4.0 |
| Element | T321 (%) | T316L (%) |
|---|---|---|
| Carbon (C) | ≤0.08 | ≤0.03 |
| Chromium (Cr) | 17.0-19.0 | 16.0-18.0 |
| Nickel (Ni) | 9.0-12.0 | 10.0-14.0 |
| Molybdenum (Mo) | – | 2.0-3.0 |
| Titanium (Ti) | 5xC-0.70 | – |
| Iron (Fe) | Balance | Balance |
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 515-690 |
| Yield Strength (MPa) | 205-275 |
| Elongation (%) | ≥40 |
| Pressure Rating (psi) | Up to 3000 (varies by size) |
| Temperature Range (°C) | -196 to 815 |
Stainless steel hoses are available in different types to suit various industrial applications. Each type offers unique advantages in terms of flexibility, pressure resistance, and durability.
Designed with continuous corrugations for excellent flexibility and bending capability. Ideal for absorbing vibrations, compensating for thermal expansion, and accommodating movement in piping systems.
Consist of a corrugated inner hose with an external stainless steel braid that enhances pressure resistance and strength. Commonly used in high-pressure and demanding industrial applications.
Basic corrugated hoses without an outer braid. Lightweight, flexible, and easy to handle—ideal for low-pressure or less demanding applications where maximum flexibility is required.
| Grade | C (% max) | Mn (% max) | Si (% max) | P (% max) | S (% max) | Cr (%) | Ni (%) | Mo (%) | N (% max) |
|---|---|---|---|---|---|---|---|---|---|
| 304 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-11.0 | - | 0.10 |
| 304L | 0.03 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | - | 0.10 |
| 316 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.10 |
| 316L | 0.03 | 2.00 | 1.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.10 |
The low carbon content in 304L and 316L enhances weldability, while molybdenum in 316 and 316L improves resistance to pitting and crevice corrosion, making Stainless steel metal hose ideal for harsh environments.
| Grade | Tensile Strength (min, MPa) | Yield Strength (min, MPa) | Elongation (min, %) | Hardness (max, HB) | Hardness (max, HRB) |
|---|---|---|---|---|---|
| 304 | 515 | 205 | 40 | 201 | 92 |
| 304L | 485 | 170 | 40 | 201 | 92 |
| 316 | 515 | 205 | 40 | 217 | 95 |
| 316L | 485 | 170 | 40 | 217 | 95 |
These mechanical properties make Stainless steel metal hose suitable for applications requiring high strength and corrosion resistance, such as architectural structures, marine environments, and chemical processing.
In order to solve the cumbersome and difficult to remember stainless steel grades, improve the practicability of the brand representation, and the contrast with the international standard grades, China has formulated the "Universal Code System for Steel and Alloy Grades", such as 06Cr19Ni10, corresponding to 304. Different grades of stainless steel have different ingredients, but they all have a national standard. The standards of each country are also different.
| No | China (GB) | Japan (JIS) | American | Korea (KS) | EU (BS EN) | India (IS) | Australia (AS) | Taiwan (CNS) | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Old | New (07.10) | SUS | ASTM | UNS | STS | EN | IS | AS | CNS | |
| Austenitic Stainless Steel | ||||||||||
| 1 | 1Cr17Mn6Ni5N | 12Cr17Mn6Ni5N | SUS201 | 201 | S20100 | STS201 | 1.4372 | 10Cr17Mn6Ni4N20 | 201-2 | 201 |
| 2 | 1Cr18Mn8Ni5N | 12Cr18Mn9Ni5N | SUS202 | 202 | S20200 | STS202 | 1.4373 | — | — | 202 |
| 3 | 1Cr17Ni7 | 12Cr17Ni7 | SUS301 | 301 | S30100 | STS301 | 1.4319 | 10Cr17Ni7 | 301 | 301 |
| 4 | 0Cr18Ni9 | 06Cr19Ni10 | SUS304 | 304 | S30400 | STS304 | 1.4301 | 07Cr18Ni9 | 304 | 304 |
| 5 | 00Cr19Ni10 | 022Cr19Ni10 | SUS304L | 304L | S30403 | STS304L | 1.4306 | 02Cr18Ni11 | 304L | 304L |
| 6 | 0Cr19Ni9N | 06Cr19Ni10N | SUS304N1 | 304N | S30451 | STS304N1 | 1.4315 | — | 304N1 | 304N1 |
| 7 | 0Cr19Ni10NbN | 06Cr19Ni9NbN | SUS304N2 | XM21 | S30452 | STS304N2 | — | — | 304N2 | 304N2 |
| 8 | 00Cr18Ni10N | 022Cr19Ni10N | SUS304LN | 304LN | S30453 | STS304LN | — | — | 304LN | 304LN |
| 9 | 1Cr18Ni12 | 10Cr18Ni12 | SUS305 | 305 | S30500 | STS305 | 1.4303 | — | 305 | 305 |
| 10 | 0Cr23Ni13 | 06Cr23Ni13 | SUS309S | 309S | S30908 | STS309S | 1.4833 | — | 309S | 309S |
| 11 | 0Cr25Ni20 | 06Cr25Ni20 | SUS310S | 310S | S31008 | STS310S | 1.4845 | — | 310S | 310S |
| 12 | 0Cr17Ni12Mo2 | 06Cr17Ni12Mo2 | SUS316 | 316 | S31600 | STS316 | 1.4401 | 04Cr17Ni12Mo2 | 316 | 316 |
| 13 | 0Cr18Ni12Mo3Ti | 06Cr17Ni12Mo2Ti | SUS316Ti | 316Ti | S31635 | — | 1.4571 | 04Cr17Ni12MoTi20 | 316Ti | 316Ti |
| 14 | 00Cr17Ni14Mo2 | 022Cr17Ni12Mo2 | SUS316L | 316L | S31603 | STS316L | 1.4404 | 02Cr17Ni12Mo2 | 316L | 316L |
| 15 | 0Cr17Ni12Mo2N | 06Cr17Ni12Mo2N | SUS316N | 316N | S31651 | STS316N | — | — | 316N | 316N |
| 16 | 00Cr17Ni13Mo2N | 022Cr17Ni13Mo2N | SUS316LN | 316LN | S31653 | STS316LN | 1.4429 | — | 316LN | 316LN |
| 17 | 0Cr18Ni12Mo2Cu2 | 06Cr18Ni12Mo2Cu2 | SUS316J1 | — | — | STS316J1 | — | — | 316J1 | 316J1 |
| 18 | 00Cr18Ni14Mo2Cu2 | 022Cr18Ni14Mo2Cu2 | SUS316J1L | — | — | STS316J1L | — | — | — | 316J1L |
| 19 | 0Cr19Ni13Mo3 | 06Cr19Ni13Mo3 | SUS317 | 317 | S31700 | STS317 | — | — | 317 | 317 |
| 20 | 00Cr19Ni13Mo3 | 022Cr19Ni13Mo3 | SUS317L | 317L | S31703 | STS317L | 1.4438 | — | 317L | 317L |
| 21 | 0Cr18Ni10Ti | 06Cr18Ni11Ti | SUS321 | 321 | S32100 | STS321 | 1.4541 | 04Cr18Ni10Ti20 | 321 | 321 |
| 22 | 0Cr18Ni11Nb | 06Cr18Ni11Nb | SUS347 | 347 | S34700 | STS347 | 1.4550 | 04Cr18Ni10Nb40 | 347 | 347 |
| Austenitic-Ferritic Stainless Steel (Duplex) | ||||||||||
| 23 | 0Cr26Ni5Mo2 | — | SUS329J1 | 329 | S32900 | STS329J1 | 1.4477 | — | 329J1 | 329J1 |
| 24 | 00Cr18Ni5Mo3Si2 | 022Cr19Ni5Mo3Si2N | SUS329J3L | — | S31803 | STS329J3L | 1.4462 | — | 329J3L | 329J3L |
| Ferritic Stainless Steel | ||||||||||
| 25 | 0Cr13Al | 06Cr13Al | SUS405 | 405 | S40500 | STS405 | 1.4002 | 04Cr13 | 405 | 405 |
| 26 | — | 022Cr11Ti | SUH409 | 409 | S40900 | STS409 | 1.4512 | — | 409L | 409L |
| 27 | 00Cr12 | 022Cr12 | SUS410L | — | — | STS410L | — | — | 410L | 410L |
| 28 | 1Cr17 | 10Cr17 | SUS430 | 430 | S43000 | STS430 | 1.4016 | 05Cr17 | 430 | 430 |
| 29 | 1Cr17Mo | 10Cr17Mo | SUS434 | 434 | S43400 | STS434 | 1.4113 | — | 434 | 434 |
| 30 | — | 022Cr18NbTi | — | — | S43940 | — | 1.4509 | — | 439 | 439 |
| 31 | 00Cr18Mo2 | 019Cr19Mo2NbTi | SUS444 | 444 | S44400 | STS444 | 1.4521 | — | 444 | 444 |
| Martensitic Stainless Steel | ||||||||||
| 32 | 1Cr12 | 12Cr12 | SUS403 | 403 | S40300 | STS403 | — | — | 403 | 403 |
| 33 | 1Cr13 | 12Cr13 | SUS410 | 410 | S41000 | STS410 | 1.4006 | 12Cr13 | 410 | 410 |
| 34 | 2Cr13 | 20Cr13 | SUS420J1 | 420 | S42000 | STS420J1 | 1.4021 | 20Cr13 | 420 | 420J1 |
| 35 | 3Cr13 | 30Cr13 | SUS420J2 | — | — | STS420J2 | 1.4028 | 30Cr13 | 420J2 | 420J2 |
| 36 | 7Cr17 | 68Cr17 | SUS440A | 440A | S44002 | STS440A | — | — | 440A | 440A |
Delivery
Inner plastic film packing, outer standard export wooden case packing.
Courier company transport, air freight and sea transport. It depends on your actual order details and quantity.
Stainless steel metal hose are essential in industries requiring flexible, corrosion-resistant solutions for thermal expansion and vibration control in piping systems.
Absorbs thermal expansion in pipelines and refineries.
Handles corrosive media and vibrations.
Protects boilers and turbines from thermal stress.
Ensures leak-free operation in piping systems.
Manages cryogenic temperatures and vibrations.
Reduces noise and vibration in piping.
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