S350RHot Work Tool Steel
SITHERM S350R is a versatile modified steel grade with high toughness and excellent thermal fatigue resistance. It is ideal for die casting light metals and alloys, die forging, and extrusion processes. With superior toughness, achieving up to an average Charpy V-notch value of 29 Joules at 44-46 HRC, SITHERM S350R is perfect for highly stressed hot-work structural parts. Additionally, its good polishability makes it suitable for plastic molding and glass processing applications.
Industries in detail
SITHERM S350R data sheet
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Product advantages
IMPACT TOUGHNESS
KV impact specimens (EN ISO148-1:2017 / ASTM A370-05-17) are used to test impact toughness in transverse direction. Specimens are quenched and tempered to 45+/-1 HRC, and test is performed at 20 ̊C. Average impact toughness of forged quality is higher than 24 Joule for the average forging size of 1000 × 400 mm. (NADCA#229-2016).
QUALITY COMPARISON
SITHERM S350R is a premium tool steel of high toughness produced by SIJ Group. The chart below shows its toughness compared to SITHERM 2343 and SITHERM 2344 hot-work tool steels. Hot-work tool steel SITHERM S350R with increased toughness is especially suitable for applications with a risk of gross cracking.
Manufacture
SITHERM S350R is made by SIJ Metal Ravne.
Standards & certificates
Material number
1.2343
AISI/SAE
H11 mod
Properties
Chemical composition
In weight %
Product forms
Hardening
Hardness after hardening is 50-54 HRC (1680 - 1916 N/mm²).
Tempering
Continuous Cooling Transformation (CCT)
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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