UNIT I • São Paulo • MATRIZ • +55 11 2632 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
UNIT IV • SC • Araquari • +55 47 3511 4242 • comercial2@trefita.com.br
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STEEL BARS

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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.

Steel 4320

CHARACTERISTICS

Intermediate Carburizing Depth.

APPLICATIONS

Gears for automobiles and tractors, universal joints and drive chains for machines.

SIMILAR MATERIALS

COPANT 4320; SAE 4320; AISI 4320; UNS G43200; DIN 15CrNi6 (1.5919); AFNOR NC 6;

WEIGHT CALCULATOR

Chemical Composition (% BY WEIGHT)

CMnPSSiNiCrMoV
0,17 – 0,220,45 – 0,650,0300,0400,15 – 0,351,65 -2,000,40 – 0,600,20 - 0,30

THERMAL TREATMENT AND PROCESSING TEMPERATURES (°C)

Forjamento Máx.AnnealingStandardizationHardeningMeans of HardeningCementationTempering
1.100 – 850830 - 860900 - 955815 - 845water900 - 925150 - 200

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FINISHED BARS TOLERANCE AS PER NBR 8647
ROUND BARS DIMENSION AND TOLERANCES ROLLED STEEL
FORGED BARS TOLERANCE: ALLOWANCE (mm) DIN 7527 and MANUFACTURERS’ Standards

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