ASTM B462 Nickel Alloy Pipe Flanges
- UNS N08020, UNS N08367, UNS R20033, UNS N06030, UNS N06022, UNS N06200, UNS N10276, UNS N10665, and UNS N10675
- Flange Standard: ASME B16.5, ASME B16.47 Series A & B, EN 1092-1
- OD: NPS 3/8″-48″, WT: SCH 5S, 10S, 40S, 80S, XS, XXS
- Flange Type: WNRF, BLRF, SORF, THRRF, SWRF, LJ, RTJ
Features
ASTM B462 Forged or Rolled Nickel Alloy Pipe Flanges
Chemical Composition (wt.%)
| Element | UNS N08020 | UNS N08367 | UNS R20033 | UNS N06030 | UNS N06022 | UNS N06200 | UNS N10276 | UNS N10665 | UNS N10675 |
| C, max | 0.07 | 0.03 | 0.015 | 0.03 | 0.015 | 0.01 | 0.01 | 0.02 | 0.01 |
| Mn,max | 2.00 | 2.00 | 2.00 | 1.50 | 0.50 | 0.50 | 1.00 | 1.00 | 3.00 |
| P, max | 0.045 | 0.04 | 0.02 | 0.04 | 0.02 | 0.025 | 0.04 | 0.04 | 0.03 |
| S, max | 0.035 | 0.03 | 0.01 | 0.02 | 0.02 | 0.01 | 0.03 | 0.03 | 0.01 |
| Si, max | 1.00 | 1.00 | 0.50 | 0.80 | 0.08 | 0.08 | 0.08 | 0.10 | 0.10 |
| Ni | 32.00-38.00 | 23.50–25.50 | 30.0–33.0 | Rem. | Rem. | Rem. | Rem. | Rem. | Rem. |
| Cr | 19.00–21.00 | 20.00–22.00 | 31.0–35.0 | 28.0–31.5 | 20.0–22.5 | 22.0–24.0 | 14.5–16.5 | 1.0 max | 1.0–3.0 |
| Mo | 2.00–3.00 | 6.00–7.00 | 0.50–2.0 | 4.0–6.0 | 12.5–14.5 | 15.0–17.0 | 15.0–17.0 | 26.0–30.0 | 27.0–32.0 |
| Cu | 3.00–4.00 | 0.75 max | 0.30–1.20 | 1.0–2.4 | – | 0.3–1.9 | – | – | 0.2 |
| Nb+Ta | 8×C–1.00 | – | – | 0.30–1.50 | – | – | – | – | – |
| N | – | 0.18–0.25 | 0.35–0.60 | – | – | – | – | – | – |
| Fe | Rem. | Rem. | Rem. | 13.0-17.0 | 2.0-6.0 | 3.0 max | 4.0-7.0 | 2.0 max | 1.0-3.0 |
Mechanical Properties
| UNS No. | Tensile Strength (ksi) | Tensile Strength (MPa) | Yield Strength (ksi) | Yield Strength (MPa) | Elongation (%) | Reduction of Area (%) |
| N08020 | 80 | 551 | 35 | 241 | 30 | 50 |
| N08367 | 95 | 655 | 45 | 310 | 30 | 50 |
| R20033 | 109 | 750 | 55 | 380 | 40 | – |
| N06030 | 85 | 586 | 35 | 241 | 30 | – |
| N06022 | 100 | 690 | 45 | 310 | 45 | – |
| N06035 | 85 | 586 | 35 | 241 | 30 | – |
| N06200 | 100 | 690 | 45 | 310 | 45 | – |
| N10276 | 100 | 690 | 41 | 283 | 40 | – |
| N10665 | 110 | 760 | 51 | 350 | 40 | – |
| N10675 | 110 | 760 | 51 | 350 | 40 | – |
Technical Specifications
| Specification | Value |
| Material Standard | ASTM B462 Forged or Rolled Nickel Alloy Pipe Flanges |
| Material Grade | UNS N08020, UNS N08367, UNS R20033, UNS N06030, UNS N06022, UNS N06200, UNS N10276, UNS N10665, and UNS N10675 |
| Corrosion Resistance | Excellent |
| Manufacturing Process | Forged or Rolled |
| Types | Welding Neck Raised Face (WNRF), Blind Raised Face (BLRF), Slip-on Raised Face (SORF), Threaded Raised Face (THRRF), Socket Welded Raised Face (SWRF), Ring Type Joint |
| Working Pressure | ASME B16.5: 150LBS, 300LBS, 400LBS, 600LBS, 900LBS, 1500LBS, 2500LBS, 3000LBS ASME B16.47-A: 150LBS, 300LBS, 400LBS, 600LBS, 900LBS ASME B16.47-B: 75LBS, 150LBS, 300LBS, 400LBS, 600LBS, 900LBS EN 1092-1: PN6, PN10, PN16, PN25, PN40, PN63/PN100 |
| Dimension | NPS 3/8″-48″, WT: SCH 5S, 10S, 40S, 80S, XS, XXS |
| Flange standard | ASME B16.5, ASME B16.47 SERIES A & B, EN 1092-1 |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical Analysis, Tensile Test, UT/ET |
Packing
Small diameter packed in plywood box; large diameter packed on plywood pallets.
Application
Chemical Processing: These flanges are used in environments with corrosive chemicals and high temperatures.
Oil and Gas Industry: They are employed in offshore drilling, pipelines, and refineries where resistance to corrosive elements is required.
Power Generation: ASTM B462 flanges are used in power plants, especially in steam and high-pressure gas systems.
Marine and Offshore: Due to their resistance to corrosion from saltwater and harsh marine conditions.
Pharmaceutical Industry: These flanges can be used in equipment with critical contamination and corrosion resistance.
Food and Beverage Processing: They are used in systems where sanitary conditions and resistance to aggressive cleaning agents are required.
Pulp and Paper Industry: These flanges can withstand the chemicals used in paper production and processing.
Wastewater Treatment: Their corrosion-resistant properties make them suitable for systems handling various wastewater types.
