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Iyle Tube Fittings has established itself as a reliable manufacturer and supplier in South Africa, focusing on top-notch Duplex Steel Hydraulic Fittings. They’ve built a solid reputation for their dedication to precision, durability, and reliability, serving industries that require exceptional corrosion resistance and mechanical strength. Their Duplex Steel fittings are designed to excel in extreme conditions, ensuring both safety and efficiency in hydraulic systems. With a strong emphasis on innovation, thorough quality control, and customer satisfaction, Iyle Tube Fittings delivers solutions that align with international standards. Their wide range of products caters to various industrial applications, making them a go-to partner for hydraulic system needs throughout South Africa and beyond.
Duplex Steel Hydraulic Fittings are crafted from a unique blend of austenitic and ferritic stainless steel, resulting in a balanced microstructure that boosts strength and corrosion resistance. Typically, they contain 18–25% chromium, 4–7% nickel, along with trace amounts of molybdenum and nitrogen, which provide outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, duplex steel showcases impressive tensile strength (around 620–880 MPa) and excellent yield strength (approximately 450–620 MPa), making it perfect for high-pressure hydraulic systems. Its durability guarantees a long service life, even in tough and corrosive environments.
| DESIGN STANDARD | DIN 2353/ ISO 8434-1 |
| MATERIAL | DUPLEX 2205 |
| SERIES | LL- LOW PRESSURE , L- MEDIUM PRESSURE, S- HIGH PRESSURE |
| WORKING PRESSURE | 1 BAR TO 700 BAR |
| SIZE RANGE | 6 MM TO 42 MM |
| 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 | EXPORT BRIGHT FINISH, SHORT BLASTED FINISH, ELECTROPLATED FINISH |
ELEMENT | DUPLEX 2205 | DUPLEX 31803 |
|---|---|---|
NI | 4.50 – 6.50 | 4.50 – 6.50 |
C | 0.030 max | 0.030 max |
MN | 2.00 max | 2.00 max |
P | 0.030 max | 0.030 max |
S | 0.20 max | 0.020 max |
SI | 1.00 max | 1.00 max |
CR | 21.0 – 23.0 | 22.0 – 23.0 |
MO | 2.50 – 3.50 | 3.0 – 3.5 |
N | 0.08 – 0.20 | 0.14 – 0.20 |
FE | 63.54 min | 63.72 min |
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| 31803 | 450 min. | 620 min. | 25 min. | 293 max. |
| 2205 | 450 min. | 655 min. | 25 min. | 293 max. |
| Density (Kg.m-1) | 7810 |
| Magnetic Permeability | <50 |
| Young’s Modulus (N/mm2) | 190 x 10^3 |
| Specific Heat, 20°C (J.Kg-1.°K-1) | 400 |
| Specific Electrical Resistance, 20°C (µO.m) | 0.85 |
| Thermal conductivity, 20°C | 15 |
| Mean coefficient of thermal expansion | 11 x 10^-6 |
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Duplex 2205 Plate | 1.4462 / 1.4462 | UNS S31803 / UNS S32205 |
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Duplex Steel Hydraulic Fittings find their place in industries where hydraulic systems face high pressure and corrosive conditions. They’re particularly suited for oil and gas, petrochemical, marine, and chemical processing applications, ensuring leak-free and dependable fluid transfer. Their corrosion resistance makes them ideal for environments rich in seawater, acids, and chlorides. Additionally, they’re utilized in power generation, desalination plants, and offshore platforms where strength, safety, and longevity are paramount. By providing sturdy connections in hydraulic systems, these fittings play a crucial role in maintaining operational efficiency.
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