SIMOLD 2312 Steel
Designation by Standards
Brand Name | Ravne | Mat. No. | DIN | EN | AISI/SAE |
SIMOLD 2312 | UTOPN | 1.2312 | 40CrMnMoS8-6 | - | - |
Chemical Composition (in weight %)
C | Si | Mn | Cr | Mo | Ni | V | W | Others |
0.40 | 0.40 | 1.50 | 1.90 | 0.20 | - | - | - | - |
Description
Cold working tool steel. It is generally supplied hardened and tempered to 880-1080 N/mm2. Higher sulphur content proviedes good machinability at relatively high hardness.Possibility of nitriding. Steel has good polishability.
Applications
Tools for plastics processing and moulds for pressure die casting.
Physical properties (average values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210 Density [g/cm3]: 7.83
Thermal conductivity [W/m.K]: 33.3
Electric resistivity [Ohm mm2/m]: 0.19 Specific heat capacity[J/g.K]: 0.46
Coefficient of Linear Thermal Expansion 10-6 oC-1
20-100oC | 20-200oC | 20-300oC | 20-400oC | 20-500oC | 20-600oC | 20-700oC |
11.7 | 13.1 | 13.5 | 14.0 | 14.4 | 14.6 | 14.7 |
Continuous Cooling Transformation (CCT) Diagram
Time-Temperature Transformation (TTT) Diagram
Soft Annealing
Heat to 710-740oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 230.
Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to approx. 650oC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden from a temperature of 830-880oC followed by oil or quenching or warm bath quenching 180-220oC. Hardness after quenching is 51 HRC.
Tempering
Tempering temperature: See the data bellow.
Tempering Temperature (oC) vs. Hardness (HRC)
100oC | 200oC | 300oC | 400oC | 500oC | 600oC | 700oC |
51 | 50 | 48 | 46 | 42 | 36 | 28 |
Tempering Diagram
Forging
Hot forming temperature: 1050-850oC.
Machinability
No data.
Forms manufactured: Please see the Dimensional Sales Program.
Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes. There is no representation that the recipient of this literature will receive updated editions as the become available.
Unless otherwise specified, registered trademarks are property of SIJ Metal Ravne company. Copyright 2016 by SIJ Metal Ravne d.o.o. All rights reserved. Contact our Sales Office for more information.
