Alloy Wire International
Datasheet: Hastelloy˘ B-3
Hastelloy˘ B-3
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. B-3 also has excellent resistance to pitting corrosion and to stress-corrosion cracking. Hastelloy B-3 is not recommended in the presence of ferric or cupric salts. Like other nickel alloys, Hastelloy B-3 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.
Available in all profile options
Key Features
Hastelloy B-3 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 B-3 is known to be suitable for the following applications:
Designations
W.Nr 2.4600
UNS N10675
AWS 051
Specifications
ASTM B335
ASTM B619
Chemical Composition
The chemical composition of Hastelloy B-3 is indicated in the table below:
| Element | Min % | Max % |
|---|---|---|
| Ni | 65.00 | – |
| Cr | 1.00 | 3.00 |
| Mo | 27.00 | 32.00 |
| Fe | 1.00 | 3.00 |
| W | – | 3.00 |
| C | – | 0.01 |
| Si | – | 0.10 |
| Co | – | 3.00 |
| Mn | – | 3.00 |
| V | – | 0.20 |
| P | – | 0.03 |
| S | – | 0.01 |
| Ti | – | 0.20 |
| Cu | – | 0.20 |
| Al | – | 0.50 |
| Zr | – | 0.10 |
| Nb/Cb | – | 0.20 |
| Ta | – | 0.20 |
| Ni+Mo | 94.00 | 98.00 |
Alloy Details
Hastelloy B-3 density, melting point, coefficient of expansion, and modulus of elasticity is indicated in the table below:
| 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 of finished parts
The typical heat treatment of Hastelloy B-3:
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
|---|---|---|---|---|
| Annealed or Spring Temper | Stress Relieve | 400 – 450 °C (750 – 840 °F) | 2 Hr | Air |
Properties
The typical mechanical properties of Hastelloy B-3:
| 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 |
The above tensile strength ranges are typical. If you require different please ask.
*Trade name of Haynes International
