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Related Tradenames:
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AL 330 (tm), Carlson Alloy 330 (tm), Nicrofer
3718 (tm), RA 330 (tm)
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Chemistry Data :
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| - Carbon |
0.08 max |
- Lead |
0.005 max |
- Silicon |
0.75 - 1.5 |
| - Chromium |
17 - 20 |
- Manganese |
2 max |
- Sulphur |
0.03 max |
| - Copper |
1 max |
- Nickel |
34 - 37 |
- Tin |
0.025 max |
| - Iron |
Balance |
- Phosphorus |
0.03 max |
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Principal Design Features :
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330 is an austenitic, nickel-chromium-iron-silicon
alloy. It combines excellent resistance to carburization and
oxidation at temperatures up to 2200 F(1200 C) with high strength.
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Applications :
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Extensively used in high temperature environments
where resistance to the combine effects of thermal cycling
and carburization is necessary. Used in a variety of furnace
components as well as in gas turbines, heat exchangers, general
heat treating equipment and neutral and cyanide salt pots.
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| Corrosion Resistance |
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Successfully resists oxidation and carburization
at temperatures up to 2200 F. SS330 will remain austenitic at
all temperatures and is totally immune to sigma phase formation. |
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Machinability :
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With proper practices this alloy can be satisfactorily
machined. Slow speeds, positive feeds, sulphurized lubricants
and rigid mounts are generally recommended.
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Welding :
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Can be successfully welded using GAW techniques.
Use either 330 or Inco 800 filler materials.
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Hot Working :
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Any hot work should commence at 2100-2150 F and
finish at 1800 F.
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Cold Working :
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Due to its relatively high strength and work
hardening rate, 330 is more difficult to cold form than standard
18-8 stainless steels. Expect to use higher forces than normal
and note its' elevated springback.
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Annealing :
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Soak at 2050-2200 F, air quench.
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Hardening :
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330 will not respond to heat treatment.; it will
only harden upon cold reduction.
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