Alloy 20 CB 3 (For Springs)
Alloy 20 CB 3 is an austenitic stainless steel with excellent resistance to hot sulphuric acid and many other aggressive environments that would readily attack stainless steel 316. This alloy exhibits superior resistance to stress-corrosion cracking in boiling 20 to 40% sulphuric acid. It can be used for any TSMC spring product such as wave springs, retaining rings and compression springs.
Nickel Base Wire for wire springs, flat springs and wire products
Key Features
- Excellent resistance to hot sulphuric acid & many other aggressive environments that would attack ST/ST 316
- Superior resistance to stress corrosion cracking in boiling 20 – 40% sulphuric acid
Typical Applications
Chemical and allied industries
Processing of synthetic rubber
High-octane gasoline
Solvents
Pharmaceuticals
Agrichemicals
Approx. Operating Temperature
Chemical Composition
| Element | Ni | Cr | Fe | Mn | C | Cu | Si | S | P | Nb | Mo |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min % | 32.50 | 19.00 | bal | – | – | 3.00 | – | – | – | 8xC | 2.00 |
| Max % | 38.00 | 21.00 | bal | 2.00 | 0.07 | 4.00 | 1.00 | 0.035 | 0.045 | 1.00 | 3.00 |
Wire Type
- Round
- Flat Wire
- Rope/Strand
Specifications
- ISO 15156-3 (NACE MR 0175)
Designations
- W.Nr 2.4660
- UNS N08020
- AWS 130
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