
Tungsten Tool Steel for Hot Work Applications
SITHERM 2581 is a specialized tungsten tool steel designed for demanding hot work environments. It is ideal for use in pressure die casting, extrusion, and hot forming processes. This steel is particularly suited for tooling applications involving copper and its alloys, such as die casting molds and extrusion dies.
Industries in detail
SITHERM 2581 data sheet
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Product advantages
SITHERM 2581 has high tungsten content which is beneficial for hot strength at red heat, although toughness is somewhat reduced.
Manufacture
SITHERM 2581 is made by SIJ Metal Ravne.
Standards & certificates
Material number
1.2581
Ravne
UTOP2
DIN
X30WCrV9-3
AISI/SAE
H21
Properties
Chemical composition
In weight %
Product forms
Hardening
Harden from a temperature of 1080 - 1160°C followed by air, oil or warm bath quenching. Hardness after quenching is 47 - 53 HRC.
Forging
Hot forming temperature: 1150 - 926°C.
Continuous Cooling Transformation (CCT)
Tempering
Disclaimer
Applications specifically suggested for the materials described are intended only for illustrative purposes, enabling the reader to make their own assessments. They are not to be construed as warranties, whether express or implied, regarding fitness for any particular purpose.
The information and data are provided for informational purposes only and may be revised at any time without notice.
Unless otherwise specified, all registered trademarks are the property of SIJ – Slovenska industrija jekla, d.d. (Slovenian Steel Group) and its subsidiaries (SIJ Group).
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