SINOXX 4034 Steel
Designation by Standards
Brand Name | Ravne | Mat. No. | DIN | EN | AISI/SAE |
SINOXX 4034 | PK4EX | 1.4034 | - | X46Cr13 | 420 |
Chemical Composition (in weight %)
C | Si | Mn | Cr | Mo | Ni | V | W | Others |
0.47 | max. 1.0 | max. 1.0 | 13.50 | - | - | - | - | - |
Description
Steel 420 displays the best corrosion resistance in hardened condition with a surface polished to give a mirror finisih.
Applications
All kinds of cutting tools - knives, shears, surgical instruments, moulds for plastics production, as well as for surgical instruments and measuring gauges.
Physical properties (average values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 220 Density [g/cm3]: 7.73
Thermal conductivity [W/m.K]: 30.0
Electric resistivity [Ohm mm2/m]: 0.65 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 |
10.5 | 11.0 | 11.0 | 11.5 | 12.0 |
Modulus of Elasticity [103 N/mm2]
20oC | 200oC | 400oC |
220 | 205 | 190 |
Continuous Cooling Transformation (CCT) Diagram
Soft Annealing
Heat to 730-780oC, cool slowly in furnace or air. Structure is ferrite with spherical carbides.
Hardening
Harden from a temperature of 980-1030oC followed by oilor air quenching. Hardness after quenching is 56 HRC.
Tempering
Tempering temperature: 100-200oC.
Tempering Temperature (oC) vs. Hardness (HRC)
20oC | 100oC | 200oC | 300oC | 400oC | 500oC | 600oC |
56 | 56 | 55 | 52 | 51 | 52 | 42 |
Tempering Diagram
Forging
Hot forming temperature: 1100-800oC.
Machinability
Similar to machining some of the high carbon tool steel, this alloy has tough, stringy chip build-up.
Corrosion Resistance
420 is resistant to the atmosphere, fresh water, dilute acids and alkalis and fruit and vegetable juices.
Welding
Not commonly welded due to its air hardening characteristics. Welding may be performed after preheating to 149-204oC with post weld tempering at temperature for 2 hours . Filler metal should be AWS E/ER420.
Note: The hot forming temperature stated should not be exceed, as harmful grain coarsening and simultaneous formation of a carbide network along the grain boundaries will otherwise occur. This results in poor development of hardness and a decline in toughness and elasticity in hardened condition.
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.
