Introduction
The KDA1 is a general-purpose hot-tool steel with a higher strength at high temperature and tenacity than the general-purpose hot-tool steel KDS (equivalent to SKD61). We are a trusted KDA1 supplier, ensuring top-quality steel for your industrial needs.
Grades Equivalent
| STANDARD | BRAZIL | AUSTRIA | EN |
|---|---|---|---|
| 1.2344 | VM13IM | W302 | X40CrMoV5-1 |
| SLOVANIA | ITALY | JIS | S.KOREA |
|---|---|---|---|
| UTOP M02-EFS | ESKY0S2 | SKD61 | STD61 |
| TAIWAN | CZECH REP. | CHINA | AMERICA |
|---|---|---|---|
| GMH13 | TLIEFS | YTR5 | H-13 |
Features of KDA1
1. Superior heat-check resistance
Hard to crack in comparison with the SKD61, and has a finer structure.
Has superior heat-check resistance equivalent to the KDA1S and offers longer service life.
2. Superior tenacity
80% or more higher tenacity than the SKD61 (in the T direction).
Good tenacity equivalent to the KDA1S.
3. Superior heat-softening resistance
Twice as high heat-softening resistance as the SKD61 maintains high hardness for a long time.
| Applications | Position of KDA1 | Heat-check resistance |
| + Tools for hot projection + Hot forging dies |  |  |
| Thermal processing characteristics | |
 |   |
| Melting-loss resistance | Heat-softening resistance |
| The KDA1 features superior melting-loss resistance to the SKD61, which is remarkably improved by surface treatment.  | The KDA1 features superior heat-softening resistance to the SKD61. |
| Strength and tenacity | |
The KDA1 features superior tenacity to the SKD61. |  |
| Physical properties | |||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
The KDA1 has smaller thermal expansion than the SKD61. Lower thermal conductivity than the SKD61 yields less temperature gradient.
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