2083 Plastic Mould Steel
General Information
2083 is a martensitic stainless steel with high hardenability (good wear resistance) and excellent resistance to cold atmospheric corrosion and hot oxidation ( 660ºC). It also has good resistance to chemical products.

Characteristics
Corrosion-resistant plastic mould steel for processing chemically aggressive injection-moulding compounds, with good polishing and machining properties.

Application : This steel offers very good polishing properties. Mainly used in plastic mould requiring very fine ( mirror) polishing, and also for fine cutlery, surgery cutting tools and razor blades.
Delivered Condition : Annealed to max. 241 HB
Nearest Equivalent DIN ~X42 Cr 13 , AISI ~ 420
% Chemical C 0.38~0.45 Si ≤ 1.00 Mn ≤ 1.00 Cr 12.50~13.50
Composition P 0.030 S 0.030 Mo 0.15~0.25

Heat Treatment
It is recommended to use vacuum furnaces or furnaces with controlled protective gas atmosphere in order to protect the steel against oxidation and decarburization.
• Austenitizing in a temperature range from 1000ºC to 1050ºC (not higher in order to avoid retained austenite) followed by oil quenching.
• Heating must be performed very slowly to minimize distortion.
Quenching has to be performed in order to get the best microstructure, tool performance and minimum distortion. A slow quenching rate is recommended to minimize distortion but the quenching rate has to be sufficient to avoid the formation of undesirable components like bainite or ferrite / pearlite.
Tempering must be carried out immediately after quenching at a temperature in accordance with the mechanical properties required.
• For high hardness (52-56HRC), temper at temperature of 200ºC for 1.5 to 2 hours.
• For better toughness (low hardness).