Learn about ASTM B564 Inconel 601 flange specifications
Learn about ASTM B564 Inconel 601 flange specifications
ASTM B564 Inconel 601 flanges are nickel-chromium alloy pipe fittings (UNS N06601) known for their excellent high-temperature strength and oxidation resistance, widely used in chemical, aerospace, and power generation industries. These flanges are available in various pressure ratings (150# to 2500#) and sealing face types (RF, FF, RTJ), with sizes ranging from 1/2 inch to 48 inches, conforming to standards such as ASME SB-564. Due to their aluminum content, these flanges perform exceptionally well in harsh high-temperature environments, exhibiting superior thermal stability and corrosion resistance.
What is SB 564 material?
ASTM B564 is the standard specification for nickel alloy forgings. The ASME SB 564 specification covers nickel alloy forgings. These alloys are classified into different grades based on their chemical composition. Each alloy must undergo chemical analysis to determine its chemical composition.
Inconel 601 is a nickel-chromium alloy known for its excellent high-temperature oxidation resistance and corrosion resistance. This makes it an ideal material for high-temperature applications, such as in the chemical, petrochemical, and aerospace industries.
Inconel 601 flanges are available in a variety of sizes, pressure ratings, and types, including weld neck flanges, slip-on flanges, socket weld flanges, blind flanges, and threaded flanges. This allows customers to choose the most suitable flange for their specific needs.
Inconel 601 Flanges Standard Specifications
Standards
ASTM B564/ ASME SB564, ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820
Dimensions
ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Class
150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40.
Forms
SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle
Size Range (inches)
From ½" (15 NB) to 48″ (1200NB)
Face Type
Flat Face (FF), Raise Face (RF), Ring Joint (RJT)
Inconel 601 Flanges Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| 601 | 2.4851 | N06601 | NCF 601 | NA 49 | XH60BT | NC23FeA | NiCr23Fe |
Alloy 601 Flanges Chemical Composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
|---|---|---|---|---|---|---|---|---|
| 601 | 0.10 max | 1.0 max | 0.5 max | 0.015 max | 1.0 max | Balance | 58.0 – 63.0 | 21.0 – 25.0 |
Inconel 601 WNRF Flange Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|---|
| 601 | 8.1 g/cm3 | 1411 °C (2571 °F) | Psi – 80,000 , MPa – 550 | Psi – 30,000 , MPa – 205 | 30 % |
ASTM B564 Inconel 601 Flanges Dimenssional Tolerance
| WELDING NECK FLANGES | ||||
|---|---|---|---|---|
| 0 | Outside Diameter | When 0 is 24″or less | ±0.06″ | ±1.6 mm |
| When O is over 24" | ±0.12″ | ±3.2 mm | ||
| R | Diameter of Contact Face | 0.06" (1.6 mm) raised face | ±0.03″ | ±0.8 mm |
| 0.25″ (6.4 mm) raised face | ±0.02″ | ±0.5 mm | ||
| A | Diameter of Hub at Point of Welding | NPS 5 and smaller | +0.09″, -0.03″ | +2.4 mm, -0.8 mm |
| NPS 6 and larger | +0.16″, -0.03″ | +4.0 mm, -0.8 mm | ||
| B | Inside Diameter | NPS 10 and smaller | ±0.03″ | ±0.8 mm |
| NPS 12 to 18, inclusive | ±0.06″ | ±1.6 mm | ||
| NPS 20 and larger | +0.12″, -0.06" | +3.2 mm, -1.6 mm | ||
| X | Diameter of Hub at Base | When Hub Base is 24″ or less | ±0.06″ | ±1.6 mm |
| When Hub Base is over 24″ | ±0.12″ | ±3.2 mm | ||
| c | Thickness | NPS 18 and smaller | +0.12″, -0.00″ | +3.2 mm, -0.0 mm |
| NPS 20 and larger | +0.19″, -0.00″ | +4.8 mm, -0.0 mm | ||
| Drilling | Bolt Circle Diameter | ±0.06″ | ±1.6 mm | |
| Bolt Hole Spacing | ±0.03″ | ±0.8 mm | ||
| Eccentricity of Bolt Circle and Facing with Respect to Bore | NPS 21/2 and smaller | ±0.03″ | ±0.8 mm | |
| NPS 3 and larger | ±0.06″ | ±1.6 mm | ||
| Length Through Hub | NPS 10 and smaller | ±0.06″ | ±1.6 mm | |
| NPS 12 and larger | ±0.12″ | ±3.2 mm | ||
| SLIP-ON, LAP JOINT, SOCKET WELDING, THREADED AND BLIND FLANGES | ||||
|---|---|---|---|---|
| O | Outside Diameter | When O is 24″ or less When O is over 24″ |
±0.06″ ±0.12″ | ±1.6 mm ±3.2 mm |
| R | Diameter of Contact Face | 0.06″ (1.6 mm) raised face 0.25″ (6.4 mm) raised face | ±0.03″ ±0.02″ | ±0.8 mm ±0.5 mm |
| B | Inside Diameter at Face of Socket Welding Flanges
Inside Diameter of Slip-On, Lap Joint, and Socket Welding |
NPS 10 and smaller NPS 12 through 18, inclusive NPS 20 and larger |
±0.03″ ±0.06″ +0.12″, -0.06″ | ±0.8 mm ±1.6 mm +3.2 mm, -1.6 mm |
| NPS 10 and smaller NPS 12 and larger |
+0.03″, -0.00″ +0.06″, -0.00″ | +0.8 mm, -0.0 +1.6 mm, -0.0 mm |
||
| Q | Counterbore, Threaded Flanges | NPS 10 and smaller NPS 12 and larger |
+0.03″, -0.00″ +0.06″, -0.00″ | +0.8 mm, -0.0 + 1.6 mm, -0.0 mm |
| X | Diameter of Hub at Base | NPS 12 and smaller NPS 14 and larger |
+0.09″, -0.06″ ±0.12″ | +2.4 mm, -1.6 ±3.2 mm |
| c | Thickness | NPS 18 and smaller NPS 20 and larger |
+0.12″, -0.00″ +0.19″, -0.00″ | +3.2 mm, -0.0 +4.8 mm, -0.0 mm |
| Drilling | Bolt Circle Diameter Bolt Hole Spacing | ±0.06″ ±0.03″ | ±1.6 mm ±0.8 mm |
|
| Eccentricity of Bolt Circle and Facing with Respect to Bore | NPS 2V2 and smaller NPS 3 and larger |
±0.03″ ±0.06″ | ±0.8 mm ±1.6 mm |
|
| Overall Length Through Hub | NPS 18 and smaller NPS 20 and larger |
+0.12", -0.03" +0.19", -0.03" |
+3.2 mm, -0.8 mm +4.8 mm, -1.6 mm |
|
Typical applications of Inconel 601 flanges:
Heat treatment: Furnaces, thermocouple protection tubes, oxygen injection tubes.
Chemical processing: Corrosive environments, reactors.
Aerospace and power generation: High-temperature components.
Oil and gas: Environments with high temperatures and corrosive conditions.
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Gnee Steel is a professional manufacturer of nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. For inquiries about alloy material prices or customized alloy material solutions, please feel free to contact us via email at ss@gneemetal.com for a quote.
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