Austenitic cast iron (Ni-Resist)
EN-GJSA-XNiSiCr30-5-5 (5.3508) chemical composition
Austenitic cast iron EN-GJSA-XNiSiCr30-5-5
A spheroidal-graphite Ni-Resist (D-4) with high silicon and chromium, giving the best oxidation and scaling resistance of these grades. Chosen for parts exposed to hot gases, such as exhaust manifolds, turbocharger housings and furnace components.
- Designation
- EN-GJSA-XNiSiCr30-5-5
- Material no.
- 5.3508
- Standard
- EN 13835
- Also known as
- Ni-Resist D-4, ASTM A439 D-4, GGG-NiSiCr 30 5 5
- Family
- Austenitic cast iron (Ni-Resist)
Chemical composition (mass %)
| Element | min | max |
|---|---|---|
| CCarbon | – | 2.60 |
| SiSilicon | 5.00 | 6.00 |
| MnManganese | 0.50 | 1.50 |
| PPhosphorus | – | 0.08 |
| CrChromium | 4.50 | 5.50 |
| NiNickel | 28.0 | 32.0 |
| CuCopper | – | 0.50 |
| FeIron | remainder | |
Basis of values: Limits per EN 13835.
We cast EN-GJSA-XNiSiCr30-5-5
We sand cast Ni-Resist grades and machine them in the group's own CNC machine shop; every melt is checked by spectrometer, with EN 10204 3.1 certificates.
- 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.