Materials and coatings

Materials and coatings

Brixiaplast is constantly working to improve the characteristics of its products:

Our research and development center, in cooperation with our partner suppliers, is dedicated to the testing of alloys that meet the requirements of the new polymers on the market and the requirements of end users, that is:


    • Improved mechanical characteristics;


    • Increased heat stability;


    • Increased resistance to wear;


    • Biodegradability.


In response to these requirements and depending on the application, we use various types of steel, such as:


    • Nitriding steels;


    • Case-hardened steels


    • Conventional chrome steels;


    • Sintered steels with powder metallurgy;


    • Stainless steel;


    • Sintered stainless steels with powder metallurgy.



All Brixiaplast steels have a certificate of origin and quality certification.
Where necessary, we use abrasive and corrosive wear “barriers” that include cobalt, nickel, iron and tungsten-based plasma coatings.


Chemical composition (weight -%)

MaterialeDurezzaHRC(RT 300°C)Resistenza all’usura(abrasione)Resistenzaalla corrosioneDil termica (25-400°C) - (1/MK)CrMoVNiBCMn
NITRURATO64-65 (50-52)-1,50,3---0,465
B1265-68( 55-57 )• • •12,81--42,13,6-
B2165-69( 58-62 )• • •• • •14,2106-43,82,0-
B1552-56( 49-53 )• • • • •13,172353,8---
MASTER B2560-65( 53-57 )• • • • •• • • •11,541,5152401,9-
Suitability: from (• good) to (• • • • • excellent)

PVR Base

Alternative Solutions

LK3•••• Acciaio da Nitrurazione
V9•••• Acciaio da Nitrurazione
K2D••• •• Acciaio da Cementazione
K55••••• Acciaio al Cromo Convenzionale
SLP••••••••• Acciaio al Cromo Convenzionale
VDS 4•••••••••• Metallurgia delle Polveri
VDS RX4•••••••• ••• Metallurgia delle Polveri
VDS 10•••••••••••••• Metallurgia delle Polveri
CRX 5•••••••• Acciaio Inossidabile
CRX C••••• •••••• Acciaio Inossidabile
CRX L •••••• Acciaio Inossidabile
ELX••••••••••• Acciaio Inox + Polveri
ELX 30•• •••••••• Acciaio Inox + Polveri
ELX 42••• ••••••••• Acciaio Inox + Polveri

* The relationship between the dots is to be considered only between each individual element.

Influenza Elementi di Lega negli Acciai
AzotoNInvecchiamento Precoce su Acciai al Carbonio / Aumenta resistenza Meccanica e al pitting negli acciai inox.
TungstenoW+ Resistenza all’usura + Temprabilità + Resistenza Meccanica
FosforoP- Tenacità
ZolfoS+ Fragilità + Inclusioni non metalliche / Peggioramento del limite di fatica
AlluminioAlIn combinazione con Azoto forma Nitruri Durissimi + Finezza del grano + Resistenza all’ossidazione a caldo
NichelNi+ Penetrazione della tempra / + Resistenza negli Inox / + Tenacità
VanadioV+Resistenza meccanica + Resistenza all’usura + Resistenza a caldo / + Formazione di carburi stabili
MolibdenoMo+ Resistenza all’Usura + Resistenza alla Corrosione + Formazione di carburi stabili + Temprabilità / Elimina fragilità al rinvenimento
CromoCr+ Temprabilità +Resistenza usura + Resistenza corrosiva / > 12% diventa acciaio inox / + Stabilità al rinvenimento + Formazione di carburi stabili
ManganeseMn+ Penetrazione tempra + Tenacità - Conducibilità termica + Inconvenienti nella cementazione / In % alte aumenta incrudimento
SilicioSi>1% + Temprabilità + Resistenza agli acidi e ossidazione a caldo - Cementazione + Deformazione a caldo /Peggiora la dimensione del grano
CarbonioC< 2,4% + Resistenza Meccanica + Temprabilità + Resistenza usura – Allungamento - Saldabilità



The choice of steels used in the plasticizing unit is completed, when necessary, with the application of coatings to protect the components from the various types of wear that are frequently caused by the use of increasingly heavier plastic materials.

Brixiaplastuses the most modern technologies for the application of coatings with PVD, CVC and Nanoceramic technologies.The resulting coating can be thought of as a very thin and very hard sheet that wraps around, protects and insulates the underlying steel.




    • Protection against corrosion


    • Protection against wear


    • Reduction of friction


    • Protection against overexposure to heat


    • Improved aesthetic appearance


    • Fast identification based on coating color


TipoDesrizioneDurezza HVSpessore°C max lavoro°C DeposizioneCoeff.AttritoColore
HSSAcciaio Super Rapido870
HMMetallo Duro - Widia1500
TINNitruro di Titanio2000-25002–5700250-4000,6giallo oro
CrNNitruro di cromo1800-20003–7650250-4000,5grigio argento
CrN multiNitruro di Cromo multistrato25002–7650250-4000,45grigio acciaio
ZrNNitruro di Zirconio2000-25002–5800-5000,45giallo chiaro
AlTiN-CNitruro Alluminio Titanio Ceramico65002–51500-5000,03-0,05blu elettrico