UNIT I • São Paulo • MATRIZ • +55 11 2955 0277 • comercial1@trefita.com.br
UNIT II • São Paulo • +55 11 2795 2555 • comercial2@trefita.com.br
 UNIT III • MG • Belo Horizonte • +55 31 3555 5555 • comercial3@trefita.com.br

STEEL BARS

CASE-HARDENING STEEL

Commonly used to enrich the surface carbon content of steel that case hardening provides. This is intended to produce a high-hardness, wear-resistant surface supported by a tenacious core.

20MnCr5

CHARACTERISTICS

Medium core hardenability at the core and intermediate surface hardenability;

APPLICATIONS

Crowns and pinions, truck and tractor gears, crossheads and driveshafts;

SIMILAR MATERIALS

SAE 5120; AFNOR 20MC5; DIN 17210;

WEIGHT CALCULATOR

Chemical Composition (% BY WEIGHT)

CMnPSSiNiCrMoV
0,17 – 0,221,10 – 1,400,0350,0350,40-1,00 – 1,30--

THERMAL TREATMENT AND PROCESSING TEMPERATURES (°C)

Forging - Max.ReheatingNormalizationQuenchingQuenching MediumCementationTempering
1.150 - 850830 - 850930 - 950780 - 860óleo910 - 930150 - 230