Alloy 20 Flanges (UNS N08020) are highly demanded in industries dealing with sulphuric acid and other aggressive chemicals. Designed as per ASTM and ASME standards, these flanges ensure superior corrosion resistance and excellent mechanical strength. Sunrise Industries manufactures Alloy 20 Weld Neck Flanges, Slip-On Flanges, and Blind Flanges in various pressure ratings and dimensions. Known for their durability and precision, these flanges are widely used in chemical, pharmaceutical, and power generation industries. With custom manufacturing facilities, we supply Alloy 20 Flanges worldwide, ensuring reliable performance, safe connections, and long service life in critical piping systems.
Alloy 20 Flanges Manufacturer & Supplier
ASTM B564 Alloy 20 Industrial Flanges Specification:
Grades : Alloy 20 (UNS 08020)
Standards: ASTM, ASME, ANSI, JIS, DIN, BSNA 11, EN Ni 99.2, JIS NW 2200, GOST-НП-2, AWWA, Custom Drawings
Specifications: ASTM B 564 / ASME SB 564
Size: 1/8″ TO 48″ NB
Class: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64.
Wall Thickness: From 2 to 40 mm.
Schedule: Sch. 5 TO Sch. XXS.
Type: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ).
Form: Slip On (SORF), WNRF, Blind, Socket Weld, Orifice, WNRTJ, BLRTJ, Threaded, Groove & Tongue, Lap Joint, Square Flanges & As Per Clients Required.
Our Alloy 20 Flanges Fittings conforms to NACE MR0175/ISO 15156.
| Standard | WERKSTOFF NR. | UNS | GOST | AFNOR | OR | JIS | BS | EN |
|---|---|---|---|---|---|---|---|---|
| Hastelloy B2 | 2.4617 | N10665 | --- | --- | --- | --- | --- | --- |
| Grade | Ni | Mo | C | P | Mn | Ti | Si | Cu | Mb | Cr | N |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Hastelloy B2 | Bal. | 26.0 - 30.0 | 0.02 max | 0.04 max | 0.1 max | - | 0.1 max | - | 1.0 max | - | Bal. |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2% offset) | Elongation |
|---|---|---|---|---|
| 9.2 g/cm3 | 1370 °C (2500 °F) | Psi – 1,15,000 , MPa – 760 | Psi – 52,000 , MPa – 350 | 40 % |
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As your one-stop manufacturing partner, Sunrise Industries maintains a complete inventory of ready-to-sell raw materials alongside custom parts fabrication and full engineering services. From prototyping to production, we provide everything at a single location—serving all industrial sectors and transforming manufacturing value chains.