Home > Stainless Steel > Stainless Steel 304 Hydraulic Fittings
Paul Tube Fittings, based in Houston, USA, is a trusted name in manufacturing and supplying top-notch Stainless Steel 304 Hydraulic Fittings. With a focus on precision engineering and a commitment to customer satisfaction, the company provides durable and cost-effective solutions for fluid and gas control systems. Their SS 304 hydraulic fittings are popular across various industries thanks to their outstanding formability, resistance to corrosion, and impressive mechanical strength. Paul Tube Fittings guarantees that each product adheres to strict quality standards and is built to perform reliably in moderate pressure and temperature settings. These fittings are perfect for general-purpose hydraulic systems in both commercial and light industrial applications.
Stainless Steel 304 Hydraulic Fittings are crafted from an austenitic stainless steel alloy that contains 18–20% chromium and 8–10.5% nickel. This unique blend provides the material with remarkable corrosion resistance across a variety of environments, along with excellent ductility and toughness. Typically, these fittings boast a tensile strength of about 515 MPa (75,000 psi) and a yield strength of 205 MPa (30,000 psi). Additionally, SS 304 is non-magnetic in its annealed state and offers good weldability and machinability, making it an ideal choice for hydraulic fittings in non-aggressive to mildly corrosive settings.
| DESIGN STANDARD | DIN 2353/ ISO 8434-1 |
| MATERIAL | SS 304 ,SS 304L |
| SERIES | LL- LOW PRESSURE , L- MEDIUM PRESSURE, S- HIGH PRESSURE |
| WORKING PRESSURE | (LOW) LL SERIES – 100 BAR |
| (MEDIUM) L SERIES – 100 BAR TO 500 BAR | |
| (HEAVY) S SERIES – 200 BAR TO 800 BAR | |
| SIZE RANGE | LL SERIES – 4LL TO 12LL |
| L SERIES – 6L TO 42L | |
| S SERIES – 6S TO 38S | |
| CONNECTIONS | TUBE TO TUBE , TUBE TO MALE THREAD , TUBE TO FEMALE THREAD , TUBE TO BUTT WELD , TUBE TO SOCKET WELD , TUBE TO JIC 37* , TUBE TO 24* CONE, TUBE TO SWIVEL END , TUBE TO ADJUSTBALE STANDPIPE |
| WELD NIPPLE TO MALE THREAD , WELD NIPPLE TO FEMALE THREAD , WELD NIPPLE TO BUTT WELD , WELD NIPPLE TO SOCKET WELD , WELD NIPPLE TO 24* CONE , WELD NIPPLE TO 37* JIC , WELD NIPPLE TO SWIVEL | |
| BODY TYPE | FORGED, BAR STOCK |
| SURFACE | STAINLESS STEEL 304- EXPORT BRIGHT FINISH, SHORT BLASTED FINISH, ELECTROPLATED FINISH |
| TEMPERATURE | STAINLESS STEEL 304 – (-60*C TO 400*C) |
Grade | Mn | C | Si | S | Cr | P | N | Mo | |
| 304 | minimum maximum | – | – | – | – | 18.0 | – | – | – |
| 304L | minimum maximum | – | – 0.030 | – | – | 18.0 | – | – | – |
| 304H | minimum maximum | – | 0.04 | – | – | 18.0 | -0.045 | – | – |
Grade | (% in 50mm) Elongation minimum | 0.2% Proof Yield Strength (MPa) minimum | Strength of Tensile (MPa) minimum | Plate Hardness | |
Brinell (HB) max | Rockwell B (HR B) max | ||||
304 | 40 | 205 | 515 | 201 | 92 |
304L | 40 | 170 | 485 | 201 | 92 |
304H | 40 | 205 | 515 | 201 | 92 |
Grade | British | Euronorm | UNS No. | SS | JIS | ||
European Standards | British Standards | Name | DIN No. | ||||
304 | 58E | 304S31 | X5CrNi18-10 | 1.4301 | S30400 | 2332 | SUS 304 |
304L | – | 304S11 | X2CrNi19-11 | 1.4306 | S30403 | 2352 | SUS 304L |
304H | – | 304S51 | X6CrNi18-11 | 1.4948 | S30409 | – | – |
Contact us to get a quick quote for your requirement.
Stainless Steel 304 Hydraulic Fittings find their place in numerous industries where affordable, corrosion-resistant solutions are essential for fluid power systems. You’ll commonly see these fittings in HVAC systems, food and beverage processing, water treatment facilities, pharmaceutical manufacturing, and general production. They are perfect for connecting tubes and hoses in hydraulic and pneumatic systems that operate under moderate pressure. SS 304 fittings from Paul Tube Fittings deliver exceptional reliability, making them a go-to choice for various applications.
Please feel free to contact us if you need any further information or for enquiry.
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