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Super alloys are also referred to as high performance alloys. They contain many elements in a variety of combinations so as to achieve the desired result. These alloys can function under very high temperatures and severe mechanical stress, and also where high surface stability is required. They have good creep and oxidation resistance. Strengthening of super alloys is performed by solid-solution hardening, work hardening, and precipitation hardening methods.
Chemical Composition
The following table shows the chemical composition of HASTELLOY(r) B-3.
Element | Content (%) |
Nickel, Ni | 65 min |
Molybdenum, Mo | 27-32 |
Cobalt, Co | 3 max |
Manganese, Mn | 3 max |
Tungsten, W | 3 max |
Iron, Fe | 1-3 |
Chromium, Cr | 1-3 |
Aluminum, Al | 0.5 max |
Copper, Cu | 0.2 max |
Niobium, Nb | 0.2 max |
Tantalum, Ta | 0.2 max |
Titanium, Ti | 0.2 max |
Vanadium, V | 0.2 max |
Zirconium, Zr | 0.1 max |
Phosphorus, P | 0.03 max |
Sulfur, S | 0.01 max |
Carbon, C | 0.01 max |
Physical Properties
The physical properties of HASTELLOY(r) B-3 are outlined in the following table.
Properties | Metric | Imperial |
Density | 9.13 g/cm³ | 0.33 lb/in³ |
Mechanical Properties
The mechanical properties of HASTELLOY(r) B-3 are provided below.
Properties | Metric | Imperial |
Tensile strength (0.125in.) | 0.88 GPa | 129 ksi |
Yield strength (0.125in.) | 0.44 GPa | 64.5 ksi |
Elongation at break (0.125in.) | 57.50% | 57.50% |
Other Designations
Equivalent materials to HASTELLOY(r) B-3 are:
ASTM B333
ASTM B335
ASTM B366
ASTM B564
ASTM B619
ASTM B622
Limiting Factors of Hastelloy B-3
Alloy B-3 has poor corrosion resistance to oxidizing environments, therefore, it is not recommended for use in oxidizing media or in the presence of ferric or cupric salts because they may cause rapid premature corrosion failure. These salts may develop when hydrochloric acid comes in contact with iron and copper. Therefore, if this nickel steel alloy is used in conjunction with iron or copper piping in a system containing hydrochloric acid, the presence of these salts could cause the alloy to fail prematurely.
In what forms is Hastelloy B-3 Available at Mega Mex?
Sheet
Plate
Bar
Pipe (welded & seamless)
Fittings
Elbows, tees, stub-ends, returns, caps, crosses, reducers, pipe nipples. etc.
Wire
What are the characteristics of Hastelloy B-3?
Maintains excellent ductility during transient exposures to intermediate temperatures
Excellent resistance to pitting, corrosion and stress-corrosion cracking
Excellent resistance to knife-line and heat-affected zone attack
Excellent resistance to acetic, formic and phosphoric acids and other non-oxidizing media
Resistance to hydrochloric acid at all concentrations and temperatures
Thermal stability superior to alloy B-2
Finishes
#1 - Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
#2D - Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process. #2B - Smooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
#BA- Bright annealed cold rolled and bright annealed
#CBA- Course bright annealed cold rolled matte finish and bright anneal
#2 - Cold Rolled #2BA- Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part. Polished - Various grit finish for specific polish finished requirements.
Super alloys are also referred to as high performance alloys. They contain many elements in a variety of combinations so as to achieve the desired result. These alloys can function under very high temperatures and severe mechanical stress, and also where high surface stability is required. They have good creep and oxidation resistance. Strengthening of super alloys is performed by solid-solution hardening, work hardening, and precipitation hardening methods.
Chemical Composition
The following table shows the chemical composition of HASTELLOY(r) B-3.
Element | Content (%) |
Nickel, Ni | 65 min |
Molybdenum, Mo | 27-32 |
Cobalt, Co | 3 max |
Manganese, Mn | 3 max |
Tungsten, W | 3 max |
Iron, Fe | 1-3 |
Chromium, Cr | 1-3 |
Aluminum, Al | 0.5 max |
Copper, Cu | 0.2 max |
Niobium, Nb | 0.2 max |
Tantalum, Ta | 0.2 max |
Titanium, Ti | 0.2 max |
Vanadium, V | 0.2 max |
Zirconium, Zr | 0.1 max |
Phosphorus, P | 0.03 max |
Sulfur, S | 0.01 max |
Carbon, C | 0.01 max |
Physical Properties
The physical properties of HASTELLOY(r) B-3 are outlined in the following table.
Properties | Metric | Imperial |
Density | 9.13 g/cm³ | 0.33 lb/in³ |
Mechanical Properties
The mechanical properties of HASTELLOY(r) B-3 are provided below.
Properties | Metric | Imperial |
Tensile strength (0.125in.) | 0.88 GPa | 129 ksi |
Yield strength (0.125in.) | 0.44 GPa | 64.5 ksi |
Elongation at break (0.125in.) | 57.50% | 57.50% |
Other Designations
Equivalent materials to HASTELLOY(r) B-3 are:
ASTM B333
ASTM B335
ASTM B366
ASTM B564
ASTM B619
ASTM B622
Limiting Factors of Hastelloy B-3
Alloy B-3 has poor corrosion resistance to oxidizing environments, therefore, it is not recommended for use in oxidizing media or in the presence of ferric or cupric salts because they may cause rapid premature corrosion failure. These salts may develop when hydrochloric acid comes in contact with iron and copper. Therefore, if this nickel steel alloy is used in conjunction with iron or copper piping in a system containing hydrochloric acid, the presence of these salts could cause the alloy to fail prematurely.
In what forms is Hastelloy B-3 Available at Mega Mex?
Sheet
Plate
Bar
Pipe (welded & seamless)
Fittings
Elbows, tees, stub-ends, returns, caps, crosses, reducers, pipe nipples. etc.
Wire
What are the characteristics of Hastelloy B-3?
Maintains excellent ductility during transient exposures to intermediate temperatures
Excellent resistance to pitting, corrosion and stress-corrosion cracking
Excellent resistance to knife-line and heat-affected zone attack
Excellent resistance to acetic, formic and phosphoric acids and other non-oxidizing media
Resistance to hydrochloric acid at all concentrations and temperatures
Thermal stability superior to alloy B-2
Finishes
#1 - Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
#2D - Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process. #2B - Smooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
#BA- Bright annealed cold rolled and bright annealed
#CBA- Course bright annealed cold rolled matte finish and bright anneal
#2 - Cold Rolled #2BA- Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part. Polished - Various grit finish for specific polish finished requirements.
