Home > Stainless Steel > Stainless Steel 304 Hydraulic Fittings
Ayten Tube Fittings is a reputable manufacturer and supplier located in Addis Ababa, Ethiopia. They focus on providing top-notch Stainless Steel 304 Hydraulic Fittings that ensure secure and leak-proof hydraulic connections. Crafted from high-quality SS 304, these fittings boast outstanding corrosion resistance, mechanical strength, and a long lifespan. Thanks to their precision engineering, they deliver reliable performance even under high pressure and in tough industrial environments. Stainless Steel 304 Hydraulic Fittings are perfect for fluid transfer, instrumentation, and hydraulic systems across various sectors, including automotive, marine, petrochemical, power generation, and food processing, where durability, hygiene, and consistent performance are crucial.
Stainless Steel 304 Hydraulic Fittings consist of 18–20% chromium, 8–10.5% nickel, and a maximum of 0.08% carbon, which helps maintain a stable austenitic structure with excellent corrosion resistance and formability. They have a tensile strength of around 515 MPa, a yield strength of 205 MPa, and demonstrate impressive elongation and toughness. SS 304 retains its strength and oxidation resistance up to 870°C, making it reliable in demanding situations. Its unique blend of chemical composition and mechanical durability makes it ideal for high-pressure hydraulic systems and environments with corrosive fluids.
| 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 are widely utilized in hydraulic and pneumatic systems, as well as in oil and gas facilities, chemical industries, and marine applications where secure, leak-proof connections are essential. Their resistance to corrosion makes them perfect for water treatment systems, food processing lines, and pharmaceutical uses, helping to maintain hygiene and prevent contamination. In sectors like construction, automotive, and aerospace, they play a crucial role in ensuring efficient fluid transmission and pressure control. Additionally, SS 304 fittings are favored in power plants and manufacturing units because they can handle vibrations, pressure changes, and thermal stress, guaranteeing safety, reliability, and long-lasting operational stability.
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