Grade 7 Ti-Pd Eccentric Titanium Reducer On Pipe Joint ASTM B363
for Chemical
A reducing pipe is a specialized type of pipe fitting where the
cross-sectional radii of the two ends differ.
The deformation characteristic of the reducer involves determining
the diameter of the tube billet based on constant volume before and
after plastic deformation of the metal material. The tube billet
diameter is smaller than that of the reducer. During the
deformation process, controlled by the core mold, the inner arc is
compressed, compensating for metal movement to other thinned parts
due to diameter expansion, resulting in a reducer with uniform wall
thickness.
The hot push forming process for concentric reducer pipe formation
utilizes a special reducer pusher, core mold, and heating device.
The tube billet is set on the mold and moved forward by the pusher
while being heated and expanded during the process of diameter and
bend forming.
| Type | Material | Specifications | Standard | Technique | Surface Finished | Quality Control | Application |
|---|
| Concentric Reducer R(C) | Pure titanium or Titanium alloy, Carbon Steel, Alloy Steel,
Stainless Steel, NO2200, NO2201, MONEL400, INCONEL 600, ZR702 | Outer diameter DN15-1200 NPS 1/2"-48", Wall thickness 1-15MM
Sch5s-Sch160 | ASTM B363, ASME B16.9, ASME SB363, ANSI B16.9 | Welded, Forged, Rolled, Seamless | Sand blasting, Polishing, Pickling | 100% X-ray detection (RT), 100% Surface penetrant inspection (PT) | Chemical, Petroleum, Machinery, Industry, etc. |
| Eccentric Reducer R(E) | Pure titanium or Titanium alloy, Carbon Steel, Alloy Steel,
Stainless Steel, NO2200, NO2201, MONEL400, INCONEL 600, ZR702 | Outer diameter DN15-1200 NPS 1/2"-48", Wall thickness 1-15MM
Sch5s-Sch160 | ASTM B363, ASME B16.9, ASME SB363, ANSI B16.9 | Welded, Forged, Rolled, Seamless | Sand blasting, Polishing, Pickling | 100% X-ray detection (RT), 100% Surface penetrant inspection (PT) | Chemical, Petroleum, Machinery, Industry, etc. |
Chemical Composition of ASME B16.9 WPT7 Ti-0.2Pd
| N | C | H | Fe | O | Al | V | Pa | Mo | Ni | Ti |
| Gr 7 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | / | / | 0.12~0.25 | / | / | balance |
Tensile Requirements of ASME B16.9 WPT7 Ti-0.2Pd
| Grade | Tensile strength(min) | Yeild strength(min) | Elongation(%) |
| ksi | MPa | ksi | MPa |
| 7 | 90 | 620 | 70 | 438 | 15 |
Characteristics of Titanium Pipe Fittings
Titanium, being a rare metal, is processed into various products to
meet specific requirements, with titanium pipe fittings being one
such product. The key characteristics are as follows:
1. Corrosion Resistance: Titanium pipe fittings excel in wet air
and seawater environments, exhibiting significantly higher
corrosion resistance compared to stainless steel. They demonstrate
robust resistance to pitting, acidic, and stress corrosion.
2. Excellent Low-Temperature Resistance: Titanium alloys maintain
their mechanical properties even at low temperatures.
3. High Strength: With a density of approximately 4.51g/cm³,
titanium alloys are around 60% lighter than steel. The specific
strength (strength/density) of titanium alloys surpasses that of
other metal structural materials by a considerable margin.
4. Superior Thermal Strength: Titanium pipes can endure prolonged
exposure to temperatures up to 450°C while retaining their
strength. Conversely, aluminum alloy's specific strength diminishes
at 150°C. Titanium alloys operate effectively at temperatures below
500°C, whereas aluminum alloys operate below 200°C.
5. Smooth Surface: Titanium pipe fittings boast a smooth surface
devoid of scaling layers, significantly reducing scaling
coefficients. Their strength surpasses that of high-quality steel,
showcasing excellent heat resistance, low-temperature toughness,
and fracture toughness. Primarily, titanium products find
applications in aircraft, rockets, missile structures, and titanium
fixation devices.
