Brand2343

Chromium Tool Steel for High-Stress Applications

SITHERM 2343 is an exceptional tool steel known for its excellent toughness, hardness, and wear resistance, even under high temperatures. It is ideal for use in highly stressed structural parts such as aircraft landing gear, where it maintains ductility and toughness at strength levels around 275 ksi and resists softening up to 537°C. This steel is also perfect for hot forging tools for light metals, pressure die casting tools, and various dies, mandrels, punches, knives, and molds. Additionally, SITHERM 2343 can be water-cooled, enhancing its versatility in demanding environments.

Product advantages

H11 is one of the hot work, chromium type tool steels. It is relatively low in carbon content and has good toughness and deep hardnesss by air quench from heat treatment. It has a good combination of toughness, hardness and wear resistance in hot conditions. It is also resistant to softening and cracking.

Manufacture

SITHERM 2343 is made by SIJ Metal Ravne.

Standards & certificates

Material number

1.2343

Ravne

UTOPMO1

DIN

X38CrMoV5-1

EN

X37CrMoV5-1

AISI/SAE

H11

Properties

Modulus of elasticity[MPa]:165 - 215
Density[g/cm³]:7.64 - 7.80
Thermal conductivity[W/mK]:25 - 29.3
Electrical resistivity[Ω mm²/m]:0.52 - 0.96
Specific heat[J/kgK]:0.46 - 0.59

Chemical composition

In weight %

C0.37
Si1.0
Mn0.38
Cr5.15
Mo1.30
V0.40

Product forms

Flat sections

rolled
Wup to 1000 mm
Tup to 500 mm

Round bars | Forged

forged
Lup to 6000 mm
up to 1000 mm

Square section

forged
Wup to 600 mm

Forging

Hot forming temperature: 1100-900°C. 

Hardening

Harden from a temperature of 1000 - 1040°C followed by air, oil or warm bath quenching at 500 - 550°C. Hardness after quenching is 50 - 56 HRC.

Continuous Cooling Transformation (CCT)

Tempering

Disclaimer

The information and data presented herein are typical or average values. The typical properties of the materials described are provided solely to assist readers in making their own evaluations and decisions. These values are not guaranteed.
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).
Copyright © 2024 by SIJ Group. All rights reserved. Contact us for further information.

Got a question?

We've got the answers! Our team is here to help you with anything you need.

Marketing

SIJ Group
Marketing
SIJ Group
SIJ Group