Hastelloy B3, 2.4600, N10675, Nickel Alloy Spring Wire
Hastelloy B3, 2.4600, N10675, Nickel Alloy Spring Wire
This Nickel-Molybdenum alloy gives excellent resistance to hydrochloric acid at all concentrations and temperatures from ambient to high. It also withstands sulphuric, acetic, formic and phosphoric acids and other non-oxidizing media. B3 also has excellent resistance to pitting corrosion and to stress-corrosion cracking. Hastelloy B3 is not recommended in the presence of ferric or cupric salts. Like other nickel alloys, Hastelloy B3 is ductile and can be formed and welded. It resists stress corrosion cracking in chloride-bearing solutions, and is able to withstand fluoride-bearing media and concentrated sulfuric acid, both of which result in damage to zirconium alloys.
Size
Diameter: 0.1 - 40mm
Shape: round, square, flat, special shaped
Key Features
Hastelloy B3 offers the following key features:
Excellent corrosion resistance to hydrochloric acid at all concentrations and temperatures
Withstands sulphuric, acetic, formic & phosphoric acids & other non-oxidising media
Excellent resistance to pitting corrosion & stress corrosion cracking
Typical Applications
Hastelloy B3 is known to be suitable for the following applications:
Chemical processing
Designations
W.Nr 2.4600
UNS N10675
AWS 051
Specifications
ASTM B335
ASTM B619
Chemical Composition
| Element | Min % | Max % |
| Ni | 65 | – |
| Cr | 1 | 3 |
| Mo | 27 | 32 |
| Fe | 1 | 3 |
| W | – | 3 |
| C | – | 0.01 |
| Si | – | 0.1 |
| Co | – | 3 |
| Mn | – | 3 |
| V | – | 0.2 |
| P | – | 0.03 |
| S | – | 0.01 |
| Ti | – | 0.2 |
| Cu | – | 0.2 |
| Al | – | 0.5 |
| Zr | – | 0.1 |
| Nb/Cb | – | 0.2 |
| Ta | – | 0.2 |
| Ni+Mo | 94 | 98 |
Physical Properties
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
| 9.22 g/cm³ | 1418 °C | 10.6 μm/m °C (20 – 100 °C) | 83 kN/mm² | 216 kN/mm² |
| 0.333 lb/in³ | 2585 °F | 5.7 x 10-6 in/in °F (70 – 212 °F) | 12038 ksi | 31329 ksi |
Heat treatment
| Condition | Type | Temperature | Time | Cooling |
| Annealed or Spring Temper | Stress Relieve | 400 – 450 °C (750 – 840 °F) | 2 Hr | Air |
Mechanical Properties
| Annealed | Approx. tensile strength | <1200 N/mm² | <174 ksi |
| Approx. operating temperature depending on load** and environment | -200 to +400 °C | -330 to +750 °F | |
| Spring Temper | Approx. tensile strength | 1600 – 2000 N/mm² | 232 – 290 ksi |
| Approx. operating temperature depending on load** and environment | -200 to +400 °C | -330 to +750 °F |
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