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Super Alloy HASTELLOY(r) G30(r) alloy(tm) |
Related Metals: |
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HASTELLOY(r) G30(r) alloy
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Specifications: |
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ASTM B366
ASTM B581
ASTM B582
ASTM B619
ASTM B622
DIN 2.4603
UNS N06030 |
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Chemistry Data |
Carbon |
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0.03 max |
Chromium |
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28 - 31.5 |
Cobalt |
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5 max |
Copper |
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1 - 2.4 |
Iron |
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13 - 17 |
Manganese |
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1.5 max |
Molybdenum |
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4 - 6 |
Nickel |
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Balance |
Niobium |
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0.3 - 1.5 |
Phosphorus |
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0.04 max |
Silicon |
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0.8 max |
Sulphur |
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0.02 max |
Tungsten |
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1.5 - 4 |
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General Information |
Principal Design Features |
A corrosion resistant alloy of nickel-chromium-molybdenum that is especially good for use in oxidizing acids. |
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Applications |
Chemical process equipment involving pickling acids, phosphoric acid, nitric acid, and sulfuric acid as well as nitric/hydrofluoric acid. Commonly used in reheater tubes, pump components, agitator blades and reboilers in nuclear waste reprocessing. Also u |
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Machinability |
Conventional machining techniques used for iron based alloys may be used. Machining characteristics are somewhat similar to those for the austenitic (300 Series) stainless steels. This alloy does work-harden during machining and has higher strength and " |
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Forming |
May be formed by conventional means. |
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Corrosion Resistance |
This alloy has excellent resistance to corrosion from phosphoric acid as well as resisting attack by oxidizing acids such as nitric/hydrofluoric, sulfuric, and nitric/hydrochloric. It resists pitting in an acidic chloride solution to a much higher temper |
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Welding |
The commonly used welding methods work well with this alloy. Matching alloy filler metal should be used. If matching alloy is not available then the nearest alloy richer in the essential chemistry (Ni, Co, Cr, Mo) should be used. All weld beads should |
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Heat Treatment |
The alloy may be annealed. Also it is important to solution-anneal after hot forming so as to restore corrosion resistance of the alloy. |
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Forging |
No data. However the alloy has good ductility and thus is capable of being forged. |
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Cold Working |
Cold forming may be done using standard tooling although plain carbon tool steels are not recommended for forming as they tend to produce galling. Soft die materials (bronze, zinc alloys, etc.) minimize galling and produce good finishes, but die life is |
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Annealing |
Anneal at 2150 F followed by water quench or rapid air cooling. |
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Hardening |
Hardens due to cold working only. |
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Physical Data |
Density (lb / cu. in.) |
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0.297 |
Specific Gravity |
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8.22 |
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) |
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0.109 |
Electrical Resistivity (microhm-cm (at 68 Deg F)) |
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698 |
Melting Point (Deg F) |
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2500 |
Thermal Conductivity |
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71 |
Mean Coeff Thermal Expansion |
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7.1 |
Modulus of Elasticity Tension |
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29.3 |
