Applications:
Alloy 330 is extensively used in high temperature environments where resistance to the combined effects of thermal cycling and carburization is necessary. Applications include:
- Chemical and Petrochemical Processing: cracked ammonia components, petrochemical furnace parts, heat exchangers, flares, etc
- Thermal Processing: heat-treat furnace containers & compartments, high temperature fans, salt pots, etc
- Ore Processing: perlite system and equipment
- Power Generation: boiler fixtures, gas turbine components, etc
Value Added Services:
- Need a special length?
- We can custom level 3/8″ thick x 72″ x 186″ from our plate line to reduce scrap
- Polish plate inventory available
- We supply #4, #6, and #8 mirror finish
- Special polishes available
- Plate processing
- Dynamic water jet cutting
- Plate shearing
- Saw cutting
- Plasma cutting and high quality plasma cutting
- Machine cut rings and discs
We are Alloy 330 Plate and Processed Flat Bar provides superior resistance to corrosion and heat exposure, in even the most demanding environments.
Corrosion Resistance:
- Provides high level of corrosion resistance especially with regards to oxidation, carburization, and nitridation
- Has great oxidation resistance and resists scale formation up to about 2000°F due to its chromium and nickel content
- Excellent resistance to carburization due to its 34 to 37% nickel and silicon content
- Exhibits resistance to nitrogen containing atmospheres where the oxygen content is low
- High nickel content also makes it highly resistant to chloride stress corrosion cracking and sigma phase embrittlement
Hardening:
Alloy 330 will not respond to heat treatment; will only harden upon cold work
Machinability
Rigid mounts, sulfurized lubricants, positive feeds and slow speeds are recommended for machining grade 330 stainless steel.
Welding
Grade 330 stainless steel can be welded using GAW techniques.
Hot Working
Hot working of grade 330 stainless steel can be performed at 1149 to 1177°C (2100 to 2150°F).
Cold Working
It is difficult to perform cold working in grade 330 stainless steel as the steel has high strength and work hardening rate. However, this steel can be cold worked using strong forces.
Annealing
Grade 330 stainless steel can be annealed at 1121 to 1204°C (2050 to 2200°F).
Chemical Properties:
| Element | Average Nominal % |
|---|---|
| Chromium | 18.00 – 22.00 |
| Nickel | 34.00 37.00 |
| Carbon | 0.08 Max |
| Silicon | 1.00 – 1.50 |
| Manganese | 2.00 Max |
| Phosphorus | 0.03 Max |
| Sulfur | 0.03 Max |
| Copper | 1.00 Max |
| Iron | Balance |
