PROPRIETARY 304 (18-9E) Stainless steels
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PROPRIETARY 304 (18-9E) Chemical Composition
Aperam, Product Data Sheets,
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PROPRIETARY 304 (18-9E) Physical Properties
Temperature
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PROPRIETARY 304 (18-9E) Heat Treatments
- Annealing
After cold forming (work hardening) and after welding (risk of intergranular corrosion in the weld joint), an annealing treatment for a couple of minutes at 1075 ± 25°C followed by air cooling restores the microstructure (recrystallisation and dissolution of carbides) and eliminates internal stresses. After annealing, pickling followed by passivation is necessary.
Pickling
- Nitric-Hydrofluoric acid mixture (10%HNO3 + 2% HF) at ambient temperature or up to 60°C.
- Sulfuric-nitric acid mixture (10% H2SO4 + 0.5%NHO3) at 60°C
- Descaling pastes for weld areas.
Passivation
- 20-25% HNO3 solution (36° Baumé) at 20°C.
- Passivating pastes for weld zones.
PROPRIETARY 304 (18-9E) Mechanical Properties
Temperature
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PROPRIETARY 304 (18-9E) International Equivalent Materials
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- 391Cross References
- 5Composition
- 12Mechanical Properties
- 53Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- 4Stress-Strain
- 1Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 232Total Suppliers