Stainless Steel Corrugated Flexible Hose

Component

Material Options

Properties

Applications

Standards Compliance

Corrugated Tube

304 Stainless Steel

• Excellent corrosion resistance
• Good flexibility
• Cost-effective

General industrial, food processing, HVAC

ASTM A240, EN 1.4301

316/316L Stainless Steel

• Superior acid/chloride resistance
• Marine-grade
• High-temperature tolerance

Chemical plants, offshore, pharmaceuticals

ASTM A240, EN 1.4401/1.4404

321 Stainless Steel

• Titanium-stabilized for weldability
• Resists carbide precipitation

High-temperature exhaust systems, aerospace

ASTM A240, EN 1.4541

Braiding (Optional)

304/316 SS Wire

• Adds pressure resistance
• Prevents over-extension
• EMI shielding

High-pressure steam, hydraulic systems

SAE J1401, ISO 10380

Inconel 600/625

• Extreme heat resistance (up to 1100°C)
• Oxidation-resistant

Jet engines, nuclear plants

ASTM B166, AMS 5666

End Fittings

304/316 SS

• Corrosion-resistant threading
• Welded/screwed options

Standard industrial connections

ASME B1.20.1 (NPT threads)

Carbon Steel (Galvanized)

• Cost-saving for non-corrosive environments

Low-budget projects (indoor use)

ASTM A153

Inner Liner

PTFE (Teflon)

• Chemical inertness
• Ultra-smooth for food/gas transfer

Semiconductor, ultra-pure fluid handling

FDA 21 CFR 177.1550

Nominal Size (Inch)

Inner Diameter (ID) mm

Outer Diameter (OD) mm

Min. Bend Radius

Pressure Rating (PSI/Bar)

Typical Applications

1/4"

6.0 - 6.5

10 - 12

30 mm

150-300 (10-20 bar)

Instrumentation, gas lines

3/8"

9.0 - 10.0

14 - 16

45 mm

125-250 (8-17 bar)

Hydraulic systems, coolant lines

1/2"

12.0 - 13.5

18 - 20

60 mm

100-200 (7-14 bar)

Compressed air, fuel transfer

3/4"

18.0 - 19.5

25 - 28

90 mm

80-150 (5-10 bar)

Industrial exhaust, steam

1"

24.0 - 26.0

32 - 35

120 mm

60-120 (4-8 bar)

Chemical transfer, HVAC

1.5"

38.0 - 40.0

48 - 52

180 mm

50-100 (3-7 bar)

Water treatment, marine

2"

50.0 - 52.0

62 - 65

240 mm

40-80 (3-5 bar)

Oil/gas pipelines

3"

75.0 - 77.0

90 - 95

360 mm

30-60 (2-4 bar)

Large industrial ducts

4"

100.0 - 102.0

120 - 125

480 mm

20-50 (1-3 bar)

Power plant exhaust

6"

150.0 - 152.0

175 - 180

720 mm

15-30 (1-2 bar)

Heavy industrial ventilation

Industry

Specific Use Cases

Key Benefits

Recommended Material

Oil & Gas

• Offshore rig fuel/oil transfer
• LNG cryogenic piping
• Refinery exhaust systems

• High-pressure resistance
• Corrosion-proof in salty environments
• Explosion-proof (ATEX certified)

316L SS with double braid

Chemical Processing

• Acid/alkali transfer (e.g., sulfuric acid)
• Solvent delivery lines

• Resists chemical degradation
• PTFE-lined options for purity
• Leak-proof joints

316SS + PTFE liner

Power Generation

• Steam turbine exhaust (high-temp)
• Nuclear plant coolant loops

• Handles thermal expansion
• Radiation-resistant alloys
• Minimal maintenance

321SS/Inconel with ceramic insulation

Food & Beverage

• Dairy processing
• Brewery CIP (clean-in-place) systems

• Sanitary design (3-A compliant)
• Electropolished interior
• Bacteria-resistant

316L SS (mirror finish)

Pharmaceutical

• Bioreactor connections
• Sterile water for injection (WFI)

• USP Class VI certified
• Particle-free fluid transfer
• Autoclavable

316L SS + PTFE (ultra-clean)

Aerospace

• Aircraft hydraulic systems
• Rocket engine fuel lines

• Lightweight yet durable
• Vibration damping
• Extreme temp tolerance

Titanium-reinforced 316SS

Semiconductor

• Ultra-pure gas delivery (e.g., argon)
• Wafer etching exhaust

• Zero contamination
• EMI shielding for sensitive equipment

316L SS + conductive braid

HVAC

• Chilled water lines
• High-pressure refrigerant transfer

• Thermal flexibility
• Condensation-resistant
• Noise reduction

304SS with PVC jacket

Marine

• Ship engine exhaust
• Ballast water systems

• Saltwater corrosion resistance
• Fireproof
• Flexible for tight spaces

316SS with marine-grade coatings

Automotive

• Turbocharger exhaust
• EV battery cooling systems

• Heat/fuel resistance
• Compact bending radius
• Longevity under vibration

321SS or aluminized steel