Duplex Tube Fittings is a combination of advanced-geometry shape for the back ferrule and a ferrule hardening process. We manufacturer Super Duplex Steel Tube Fittings which are rich in Chromium, Molybdenum and Nickel content, with added Nitrogen that acts as an intensifying force against corrosive activities. Super Duplex Ferrule Tube Fittings are available in sizes from 1/4 to 3/4 in.

Super Duplex Tube Fittings

Duplex Compression Fittings

Super Duplex Ferrule Tube Fittings
Duplex Compression Fittings are most durable tube fittings designed as leak-free and strong connections. High-Quality Super Duplex Compression Tube Fittings with robust tube grip with patented, two-ferrule technology is resistant to vibration fatigue and withstands high pressures and temperature extremes. Our Super Duplex Hydraulic Fittings are made of high mechanical properties, with an austenitic-ferritic microstructure that reflects a high tensile strength of 116 ksi, used as fittings for load handling equipment in the steel construction industry. Duplex Ferrule Tube Fittings deliver a leak-tight, gas-tight seal in an easy-to- install, disassemble and reassemble form.
Special price offer on Super Duplex Compression Fittings, Super Duplex S2507 Instrumentation Fittings, Super Duplex Steel Uns S32750 Ferrule Fittings, Super Duplex Male Elbow, UNS S32760 Compression Fittings if you are from Germany, UK, Canada, France, Netherlands, Sweden, Italy, Malaysia, Philippines, South Africa, Zimbabwe, Finland, China. Call for price list of Super Duplex Instrumentation Fittings or Super Duplex Ferrule Tube Fittings in below Rajkot, Pune, Mumbai, Ghaziabad, Bhosari, Ahmedabad, Vadodara, Bangalore, Delhi, Chennai, Ludhiana.
Table of Content
| Specifications | ASTM A276 ASME SA 479 |
| Pressure Ratings | Up to 11 000 psig (760 bar) |
| Tube Size | 6mm to 38mm to 1/4″ to 1 1/2″ |
| Thread | NPT, BSP, BSPT, UNF, ISO, SAE etc. |
| Materials of construction | Including stainless steel and other materials optimized for strength, corrosion-resistance, weldability and ductility |
| End Connections |
|
| Types |
NPT, ISO/BP, SAE/MS, AN, weld ends, port connectors, sanitary flanges, tube adapters |
| Sizes |
1/16 to 2 in.; 2 to 50 mm |
| Configurations |
Straights, elbows, tees, crosses, caps, plugs, nuts and ferrules Chromatograph and Column End |
| Pressure Ratings | Up to 20 000 psig (1378 bar) |
| Temperature Ratings | Up to 1000°F (537°C) |
| Materials of construction | 316 Stainless Steel Alloy 2507 Alloy 625 |
| End Connections |
|
| Sizes |
1/4 to 1-1/2 in. |
| Configurations |
Straights, elbow, tees |
| Pressure Ratings | Up to 60 000 psig (4134 bar) |
| Temperature Ratings | Up to 1000°F (537°C) |
| Materials of construction | 316 Stainless Steel Alloy 2507 Alloy 625 |
| End Connections |
|
| Sizes |
1/4 to 9/16 in. |
| Configurations |
Straights, elbow, tees |

| OD | OD Actual | Thread Designation - Nominal Size | Thread per inch | |
| (fraction inch) | (inches) | (inches) | NPT | BSP |
| 5/16 | 0.3125 | 1/16 | 27 | 28 |
| 13/32 | 0.405 | 1/8 | 27 | 28 |
| 35/64 | 0.540 | 1/4 | 18 | 19 |
| 43/64 | 0.675 | 3/8 | 18 | 19 |
| 27/32 | 0.840 | 1/2 | 14 | 14 |
| 1-3/64 | 1.050 | 3/4 | 14 | 14 |
| 1-5/16 | 1.315 | 1 | 11-1/2 | 11 |
| 1-21/32 | 1.660 | 1-1/4 | 11-1/2 | 11 |
| 1-29/32 | 1.900 | 1-1/2 | 11-1/2 | 11 |
| 2-3/8 | 2.375 | 2 | 8 | 11 |
| 2-7/8 | 2.875 | 2-1/2 | 8 | 11 |
| 3-1/2 | 3.5 | 3 | 8 | 11 |
| 4 | 4.0 | 3-1/2 | 8 | 11 |
| 4-1/2 | 4.5 | 4 | 8 | 11 |
| 5-5/8 | 5.563 | 5 | 8 | 11 |
| 6-5/8 | 6.625 | 6 | 8 | 11 |
Common Features of Super Duplex Tube Fittings are as follows:
| Density (Kg.m-1) | 7810 |
| Magnetic Permeability | 33 |
| Young’s Modulus (N/mm2) | 199 x 103 |
| Specific Heat, 20°C (J.Kg-1.°K-1) | 475 |
| Fracture Toughness, Kq (MPa.m) | 475 |
| Specific Electrical Resistance, 20°C (µO.m) | 0.80 |
| Thermal conductivity, 20°C | 14.2 |
| Mean coefficient of thermal expansion | 11.1 x 10-6 |
| Super Duplex 2507 | |
|---|---|
| Ni | 6 – 8 |
| Cr | 24 – 26 |
| Fe | Balance |
| Mo | 3 – 5 |
| C | 0.030 max |
| N | 0.24 – 0.32 |
| Mn | 1.20 max |
| Cu | 0.50 max |
| Si | 0.80 max |
| P | 0.035 max |
| S | 0.020 max |
| 0.2% Proof Stress (N/mm2 ) [ksi] minimum | 550[79.8] |
|---|---|
| Tensile Strength (N/mm2) [ksi] minimum | 800 [116] |
| Elongation (%) minimum | 25 |
| Hardness (HBN) | 270 max |
| Reduction of Cross Section Area (%) | 45 |

