SITHERM S2343R
SITHERM S2343R is a general-purpose hot work tool steel, providing a favorable combination of toughness, wear resistance and ease of machining operation.
It is produced using the ESR remelting procedure, ensuring the highest purity for demanding applications such as:
- High runner high pressure die casting tools
- Molding of transparent optical plastics (e.g., car lights)
Tools made from this steel can be water cooled and subject to nitriding treatment without appreciable loss of hardness.
Impact toughness of this steel is considerably higher compared to SITHERM 2344R, at the expense of slightly lower hardness and wear resistance.
SITHERM 2343R is certified according to NADCA#229, however HTS is able to guarantee significantly higher mechanical properties and stricter control of microstructure.
Key Properties
Toughness
- Guaranteed impact toughness
- Hardness: 44–46 HRC (Standard EN ISO 148-2018)
Impact Toughness Table (Block size / NADCA#207-2016 – KV2 in Joules)
| Block size (mm) / NADCA#207-2016: KV2 (J) |
| <810 x 365 | <1010 x 450 | >1010 x 460 | NADCA#229 | ||||
| Avg. | Min. | Avg. | Min. | Avg. | Min. | Avg. | Min. |
| 23 | 18 | 23 | 17 | 23 | 16 | 19 | 15 |
Microstructure
Acceptable microstructure for block size:
- ≤ 810 × 365 mm: AS1–AS6
- 810 × 365 mm: AS1–AS9
(All microstructures etched with 5% Nital)
“AS” – Rating acceptability criteria of annealed microstructure according to NADCA#229-2016, 500× magnification.
Applications
- High runner high pressure die casting tools
- Transparent optical plastic molding (e.g., car lights)
- Hot work applications requiring high impact toughness and good machinability
Certifications
- NADCA#229 certified
- Higher-than-standard mechanical properties and microstructure control guaranteed by HTS
Downloads
Product Data Sheet
You can find more detailed information in the downloadable datasheet.
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