GX2NiCrMoCu25-20-5 (1.4584) chemical composition
Super-austenitic low-carbon grade (cast 904L) with high nickel, molybdenum and copper for sulphuric acid, phosphoric acid and chloride-bearing media where 316-type grades are insufficient. Used for pump and valve parts in fertilizer and chemical plants.
- Designation
- GX2NiCrMoCu25-20-5
- Material no.
- 1.4584
- Standard
- EN 10283
- Also known as
- ≈ 904L / 1.4539 (wrought)
- Family
- Stainless cast steel
Chemical composition (mass %)
| Element | min | max |
|---|---|---|
| CCarbon | – | 0.025 |
| SiSilicon | – | 1.00 |
| MnManganese | – | 2.00 |
| PPhosphorus | – | 0.035 |
| SSulphur | – | 0.02 |
| CrChromium | 19.0 | 21.0 |
| NiNickel | 24.0 | 26.0 |
| MoMolybdenum | 4.00 | 5.00 |
| CuCopper | 1.00 | 3.00 |
| NNitrogen | – | 0.20 |
| FeIron | remainder | |
Basis of values: Limits per EN 10283.
We cast GX2NiCrMoCu25-20-5
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.