CD3MCuN (UNS J93373) chemical composition
Low-carbon, copper-bearing super duplex with higher molybdenum and nitrogen and a specified PREN ≥ 40. Suited to seawater and acid-chloride service; a near cast equivalent of UR 52N+ / S32520.
- Designation
- CD3MCuN
- Material no.
- UNS J93373
- Standard
- ASTM A890 Grade 1C
- Also known as
- A890 1C, ≈ UR 52N+ / S32520 / F59 (cast)
- Family
- Duplex & super duplex stainless cast steel
Chemical composition (mass %)
| Element | min | max |
|---|---|---|
| CCarbon | – | 0.03 |
| SiSilicon | – | 1.10 |
| MnManganese | – | 1.20 |
| PPhosphorus | – | 0.03 |
| SSulphur | – | 0.03 |
| CrChromium | 24.0 | 26.7 |
| NiNickel | 5.60 | 6.70 |
| MoMolybdenum | 2.90 | 3.80 |
| CuCopper | 1.40 | 1.90 |
| NNitrogen | 0.22 | 0.33 |
| FeIron | remainder | |
Basis of values: Limits per ASTM A890 Grade 1C.
Additional requirements: PREN: %Cr + 3.3 %Mo + 16 %N ≥ 40
We cast CD3MCuN
Tsitouras Foundry casts duplex and super duplex pump casings, impellers and process components, with heat treatment, 3D-printed sand cores for complex passages, CNC machining and dynamic balancing in the group's own shops. Every heat is analysed by OES and supplied with an EN 10204 3.1 certificate.
- Sand casting at our foundry in Mandra, Attica; centrifugal casting for bushings, sleeves and liners
- Heat treatment at the foundry (water, oil or air quench); CNC machining in our machine shop in Perama
- Spectrometer analysis of every heat, mechanical testing and NDT
- EN 10204 3.1 inspection certificates; ISO 9001 (both plants) and ISO 14001 (foundry) certified
Other grades in this family
For information only, without warranty: limits per the cited standard or, where stated, typical or house values; ≈ marks a comparable grade, not an equivalent. The current edition of the standard, the purchase order and the drawing govern.