4028Versatile Free Machining Stainless Steel
SINOXX 4028 is ideally suited for a wide range of precision components and tools due to its excellent machinability and corrosion resistance when hardened and slightly tempered. This steel is perfect for manufacturing pump shafts, gears, pinions, cams, steel balls, and various hand tools. However, it is not recommended for use in high-pressure gas or liquid vessels, or in plastic moulds requiring high surface finishes.
Industries in detail
SINOXX 4028 data sheet
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Manufacture
SINOXX 4028 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
1.4028
EN
X30Cr13
AISI/SAE
420F
Ravne
PK4
Properties
Chemical composition
In weight %
Product forms
Hardening
Harden from a temperature of 950 - 1050°C followed by oil or air quenching. Hardness after quenching is 52 - 58 HRC.
Forging
Hot forming temperature: 1100 - 800°C, slow cooling.
Continuous Cooling Transformation (CCT)
Tempering
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.
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