The calculated strength from a Slip On flange under internal pressure is of the order of two-thirds that of Welding Neck flanges, and their life under fatigue is about one-third that of the latter. The connection with the pipe is done with 2 fillet welds, as well at the outside as also at the inside of the flange.
The Ring Type Joint flanges are typically used in high pressure (Class 600 and higher rating) and/or high temperature services above 800°F (427°C). They have grooves cut into their faces which steel ring gaskets. The flanges seal when tightened bolts compress the gasket between the flanges into the grooves, deforming (or Coining) the gasket to make intimate contact inside the grooves, creating a metal to metal seal.
Inconel 625 is a corrosion and oxidation resistant nickel alloy that is used both for its high strength and outstanding aqueous corrosion resistance. Its outstanding strength and toughness is due to the addition of niobium which acts with the molybdenum to stiffen the alloy's matrix. Alloy 625 has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions. This nickel alloy has excellent weldability and is frequently used to weld AL-6XN. This alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Some typical applications Inconel 625 is used in are chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.
SpecificationASTM B564-19 Standard Specification for Nickel Alloy ForgingsASTM B564-19 Standard Specification for Nickel Alloy Forgings.
| B564 N06625 Flange Size Chart | 1/2"(15 NB) to 48"(1200NB) DN10~DN5000 |
|---|---|
| B564 UNS N06625 SORF Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| B564 Gr. N06625 Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| ASTM B564 UNS N06625 Flange Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| ASTM B564 N06625 Flange JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| ASTM B564 N06625 Flange UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| SB564 N06625 FlangeEN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Most common types of SB 564 UNS N06625 Flange | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| ASTM B564 UNS N06625 Flange Production technique | Forged, Heat treated and machined |
Chemical Composition
| Cr | Mo | Co | Nb+Ta | Al | Ti | C | Fe | Mn | Si | P | S | Ni | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 20 | 8 | -- | 3.15 | -- | -- | -- | -- | -- | -- | -- | -- | Balance |
| Max | 23 | 10 | 1 | 4.15 | .4 | .4 | .1 | 5 | .5 | .5 | .015 | .015 | Balance |
Mechanical Properties
Temp° F | Tensile (psi) | .2% Yield (psi) | Elongation in 2"(%) |
|---|---|---|---|
70 | 144,000 | 84,000 | 44 |
400 | 134,000 | 66,000 | 45 |
600 | 132,000 | 63,000 | 42.5 |
800 | 131,500 | 61,000 | 45 |
1000 | 130,000 | 60,500 | 48 |
1200 | 119,000 | 60,000 | 34 |
1400 | 78,000 | 58,500 | 59 |
1600 | 40,000 | 39,000 | 117 |
- 1. Engine thrust-reverser systems
- 2. Specialized seawater equipment
- 3. Chemical process equipment
