Kc Impex stands at the forefront among suppliers and manufacturers of Hastelloy B3 Fasteners, renowned for their exceptional resistance to hydrochloric acid across all concentrations and temperatures. Notably, Hastelloy B-3 exhibits significantly enhanced structural stability compared to its predecessors, minimizing concerns during welding, fabrication, and service. This nickel-molybdenum alloy offers outstanding resistance to pitting, corrosion, and stress-corrosion cracking, coupled with superior thermal stability surpassing that of alloy B-2.
Hastelloy UNS N10675 Fasteners find wide applicability in aircraft, furnace components, chemical process equipment, honeycombs, and gas turbine combustion section components. This alloy demonstrates exceptional resistance to sulfuric, acetic, formic, and phosphoric acids, as well as other non-oxidizing media. The special chemistry of B-3 Alloy Fasteners ensures superior thermal stability compared to its predecessors, notably surpassing HASTELLOY B-2 alloy. Hastelloy B3 is renowned for its corrosion resistance in non-oxidizing environments, particularly against HCl. HASTELLOY B-3 Din 2.4617 Fasteners represent a notable addition to the Ni-Mo family of alloys, featuring a specially engineered chemistry for enhanced performance.
Standard HASTELLOY B3 Fasteners specifications as per Fasteners manufacturers.
| Material | Hastelloy B3 |
| Specification | IS/BS/ASTM |
| Standards | ASTM B335 |
| Size | 3 mm to 200 mm |
| Length | M02 to M30 |
Each HASTELLOY B3 Fasteners have unique design each of them are used in specific applications. Some of them are mentioned below.
Note that this chart includes only some of the most common sizes of HASTELLOY B3 Bolt. There are many other sizes available as well, and some applications may require custom sizes or special configurations.
Nickel (Ni)
Approximately 65%
Molybdenum (Mo)
Approximately 28-30%
Chromium (Cr)
Approximately 1%
Iron (Fe)
Approximately 1-3%
Tungsten (W)
0.50%
Cobalt (Co)
Approximately 1%
Manganese (Mn)
1 max%
Vanadium (V)
0.35 max%
Silicon (Si)
0.08 max%
Carbon (C)
0.01 max%
Sulfur (S)
0.03 max%
Phosphorus (P)
0.04 max%
| Density | 9.22 g/cm³ (0.333 lb/in³) |
| Melting Point | 1370 °C (2500 °F) |
| Tensile Strength | : 105 ksi (724 MPa) minimum |
| Yield Strength (0.2%Offset) | 45 ksi (310 MPa) minimum |
| Elongation | 40% minimum |
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