Brand2738

Cold Work Mold Steel with Enhanced Hardness, Toughness, and Machinability

Typically utilized in applications, such as matrices for machinery intended for die casting, production of moulds for plastic injection moulding and synthetic plastic moulds dies. Its excellent machinability and enhanced hardenability make it particularly suitable for manufacturing large moulds.

Product description

This steel falls under the category commonly labeled as Mold Steels. Nickel and chromium are the alloying elements that enhance hardness and toughness. It is a cold work tool steel with good machinability, excellent polishability and suitability for texturing. It offers improved through hardenability compared to 1.2311.

Manufacture

SIMOLD 2738 is made by SIJ Acroni and SIJ Metal Ravne. The manufacturer depends on the steel's final form, affecting its physical properties and chemical composition.

Standards & certificates

Material number

1.2738

Ravne

UTOPNIN

DIN

40CrMnNiMo8-6-4

AISI/SAE

P20 Mod.

Properties

Density[g/cm³]:7.80
Elasticity[10³ x N/mm²]:205
Hardness[HRC]:28 - 52

Chemical composition

In weight %

C0.40
Si0.30
Mn1.45
Cr1.95
Mo0.20
Ni1.05

Product forms

Flat sections

rolled
Wup to 1500 mm
Tup to 600 mm

Round bars

forged
Lup to 6000 mm
up to 1000 mm

Square section

forged
Wup to 1000 mm

Continuous Cooling Transformation (CCT)

Tempering

Hardening

Harden from a temperature of 840 - 880°C followed by oil, air or warm bath (180 - 220°C) quenching. Hardness after quenching is 52 HRC.

Forging

Hot forming temperature: 1093 - 898°C.

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.

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