HT PIPE Suppliers Manufacturers Hastelloy Pipes according to ASTM B474 and ASTM B622.
Alloy B3 UNS N10675 Pipe Description
Hastelloy B-3 / UNS N10675 / 2.4600 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion, and stress-corrosion cracking plus, thermal stability superior to that of alloy B-2. In addition, this nickel steel alloy has great resistance to knife-line and heat–affected zone attack. Alloy B-3 pipe also withstands sulfuric, acetic, formic and phosphoric acids, and other non-oxidizing media. Furthermore, this nickel alloy has excellent resistance to hydrochloric acid at all concentrations and temperatures. Hastelloy B-3's distinguishing feature is its ability to maintain excellent ductility during transient exposures to intermediate temperatures. Such exposures are routinely experienced during heat treatments associated with fabrication.
Excellent Weldability: Hastelloy B3 alloy exhibits good weldability, allowing for the fabrication of complex structures and assemblies using various welding techniques, including electric fusion welding.
Hastelloy B3 UNS N10675 Pipe SPECIFICATION
- Dimensions: ASTM, ASME and API
- Standard: ASTM B474 / ASME SB 474
- Size: 15 NB to 150 NB IN (ANSI B36.10)
- Outer diameter: 1/2" - 48"
- Specialized in: Large Diameter Size
- Grade: UNS N10675 Hastelloy B3
- Schedule: SCH 5 - SCH XXS
- Type : Welded / ERW / Fabricated
- Length : Single Random, Double Random & Cut Length.
- End: Plain End, Beveled End, Threaded
ASTM B474-03(2009) Standard
Standard Specification for Electric Fusion Welded Nickel and Nickel Alloy Pipe.
This ASTM B474 specification covers electric fusion welded pipe suitable for high-temperature or corrosive service. The pipes are designated into five classes namely Class 1, Class 2, Class 3, Class 4 and Class 5, according to how they are to be welded. The joints shall be full penetration double-welded or single-welded butt joints employing fusion welding processes.
ASTM B474 Recommended Heat Treatment
| Alloy | UNS Designation | PWHTA, B Deg. F. (Deg. C) |
Quench |
|---|---|---|---|
| 200 (Ni) | N02200 | 1650-1700 (900 to 928) | Rapid Air/water |
| 201 (Low C) | N02201 | 1650-1700 (900 to 928) | Rapid Air/water |
| 400 (Ni-Cu) | N04400 | 1650-1700 (900 to 928) | Rapid Air/water |
| X (Ni-Cr-Mo-Fe) | N06002 | 2150 (1177)C | Rapid Air/water |
| C22D (Low C-Ni-Mo-Cr) | N06022 | 2050-(1120)C | Rapid Air/water |
| G30D (Ni-Cr-Fe-Mo-Cu) | N06030 | 2150 (1177)C | Rapid Air/water |
| C2000D(Ni-Cr-Mo-Cu) | N06200 | 2075-2125 (1135-1163)B | Rapid Air/water |
| 230D (Ni-Cr-W-Mo) | N06230 | 2150-2250 (1177-1232)B | Rapid Air/water |
| 600 (Ni-Cr-Fe) | N06600 | 1800-1850 (983 to 1010) | Rapid Air/water |
| 601 (Ni-Cr-Fe-Al) | N06601 | 1600-1650 (874 to 900)E | Rapid Air/water |
| 625 (Ni-Cr-Mo-Cb) Grade 1 | N06625 | 1600 (871)C | Rapid Air/water |
| 625 (Ni-Cr-Mo-Cb) Grade 2 | N06625 | 2000 (1093)C | Rapid Air/water |
| G3D (Ni-Cr-Fe-Mo-Cu) | N06985 | 2100-2150 (1147 to 1177)B | Rapid Air/water |
| Alloy 20 (Cr-Ni-Fe-Mo-Cu-Cb) | N08020 | 1700-1850 (927 to 1010) | Rapid Air/water |
| ... | N08024 | 1925-1975 (1052 to 1079) | Rapid Air/water |
| ... | N08026 | 2050-2200 (1121 to 1204) | Rapid Air/water |
| 825 (Ni-Fe-Cr-Mo-Cu) | N08825 | 1700-1800 (930 to 980)E | Rapid Air/water |
| C276 (Low C-Ni-Mo-Cr) | N10276 | 2050 (1121)C | Rapid Air/water |
| B2 (Ni-Mo) | N10665 | 1950 (1065)C | Rapid Air/water |
| B3D (Ni-Mo) | N10675 | 1950 (1065)C | Rapid Air/water |
A Recommended temperatures-Different temperatures may be selected by either the purchaser or the manufacturer.
B Set temperatures, ±25°F (±14°C).
C Minimum set temperature.
D Registered Trademark of Haynes International.
E Heat treatment is highly dependent on intended service temperature - consult material manufacturer for specific heat treatments for end use temperature.
Applications of ASTM B474 Hastelloy B3 EFW Pipe:
- Chemical processing equipment such as reactors, vessels, and piping systems.
- Pharmaceutical manufacturing equipment where corrosion resistance is critical.
- Pollution control devices such as scrubbers and exhaust systems.
- Aerospace and marine engineering applications.
- Heat exchangers and condensers in various industrial processes.
