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1.2311

40CrMnMo7/AISI: P20
Delivery Type : Hardened and tempered 280-325 HB

Areas of Usage: It is used in plastic molds core, plastic and metal injection molds, mold holders and extrusion press sleeves. It has high polishability. It can be subjected to nitration treatment to increase the surface hardness. It is suitable for chrome plating. It shows uniform hardenability in molds up to 400 mm in size. It can be hardened uniformly in smaller sections.
 

Kimyasal Bileşim (%) C Mn Cr Mo
% Ortalama 0,40 1,50 1,90 0,20
DIN Analizi 0,35-0,45 1,30-1,60 1,80-2,10 0,15-0,25

 

Isıl İletkenlik ( W/ m.K ) 100°C 200°C 300°C
34,0 33,6 31,9

 

ISIL İŞLEM VERİLERİ
  Sıcaklık(°C) Süre (Saat) Soğutma Ortamı
Yumuşatma Tavlaması 700-75 2-5* Fırında
Gerilim Giderme 550-650 2* Fırında
Sertleştirme 830-870 - Yağ, sıcak banyo 180-220°C
Temperleme 600-680 Her 20 mm için 1saat Hava

 

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