CA6NM (UNS J91540) chemical composition
ASTM 13Cr-4Ni martensitic grade with a molybdenum addition, used normalised and tempered where strength, toughness and cavitation-erosion resistance are needed: hydro turbines, pump impellers and casings, compressor parts. Close to EN 1.4317.
- Designation
- CA6NM
- Material no.
- UNS J91540
- Standard
- ASTM A743
- Also known as
- ≈ 1.4317 GX4CrNi13-4, 13Cr-4Ni
- Family
- Stainless cast steel
Chemical composition (mass %)
| Element | min | max |
|---|---|---|
| CCarbon | – | 0.06 |
| SiSilicon | – | 1.00 |
| MnManganese | – | 1.00 |
| PPhosphorus | – | 0.04 |
| SSulphur | – | 0.03 |
| CrChromium | 11.5 | 14.0 |
| NiNickel | 3.50 | 4.50 |
| MoMolybdenum | 0.40 | 1.00 |
| FeIron | remainder | |
Basis of values: Limits per ASTM A743.
We cast CA6NM
Tsitouras Foundry supplies stainless steel sand castings – and centrifugal castings for bushings and sleeves – with the heat treatment each grade requires (solution annealing; quenching and tempering for martensitic grades), spectrometric chemical analysis, mechanical testing and NDT, EN 10204 3.1 certificates, and CNC machining to the finished part in the group's own machine shop.
- 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.