| Material |
Hastelloy B3 (Nickel-Molybdenum Solid Solution Alloy) |
| Standard / Classification |
UNS N10675 | DIN 2.4600 | Alloy B-3
- Density: 9.22 g/cm³
- Melting Range: 1370 - 1418°C (2500 - 2585°F)
|
| Mechanical Properties |
- Tensile Strength: ≥ 760 MPa (110 ksi)
- Yield Strength (0.2% Offset): ≥ 350 MPa (51 ksi)
- Elongation (%): ≥ 40%
- Hardness (Rockwell B): ≤ 100 HRB
|
| Chemical Composition (%) |
Ni: 65.0 Min (Balance) | Mo: 27.0 - 32.0 | Cr: 1.5 - 3.0 | Fe: 1.5 - 3.0 | W: 3.0 Max | Co: 3.0 Max | Mn: 3.0 Max | Al: 0.50 Max | Ti: 0.20 Max | C: 0.01 Max | Si: 0.10 Max |
| Manufacturing Specification |
Washers are typically stamped or machined from Hastelloy B3 plate, sheet, or strip. Material strictly conforms to ASTM B333 (Standard Specification for Nickel-Molybdenum Alloy Plate, Sheet, and Strip). Dimensional tolerances strictly follow DIN 125, DIN 9021, or ASME B18.22.1. |
| Types Available |
Flat Washers (Form A / Form B), Spring Lock Washers, Belleville Washers, Machined Washers, and Custom Punched Washers. |
| Properties & Applications |
Crucial for distributing bearing loads in highly specific chemical processing applications. Hastelloy B3 washers offer the same exceptional resistance to hydrochloric acid as B2, but with vastly superior thermal stability, preventing embrittlement and stress corrosion cracking during installation or temperature fluctuations. Important Engineering Note: Do not utilize Hastelloy B3 washers in oxidizing environments or in systems where iron or copper piping might introduce ferric or cupric salts into the media. |
| Marking |
Due to size constraints and stamping limitations on thin-gauge materials, flat washers are generally not permanently marked unless specifically requested by the client or required by a custom specification. |
| Qualification & Acceptance |
Independently tested for hardness, chemical analysis, and supplied with EN 10204 Type 3.1 Material Test Certification. |
