VD2 Steel

VD2 Steel

Steel name: VD2
Diagram No.: 1798
Mat.No. (Wr.Nr.) designation: 1.2379
DIN designation: X155CrMoV12-1
AISI/SAE designation: D2
JIS designation: SKD 11
Chemical composition in weight %: 1.50% C, 0.30% Si, 12.00% Cr, 0.95% Mo, 0.90% V
Steel group: Cold work tool steels
Properties: No data
Applications: Blanking and piercing dies, including punches and dies used to cold form metals in an stamping presses. Tools for press forming dies. Deep drawing dies. Thread-rolling dies. Blades for cold shearing flat materials, with thickness up to 6 mm (1/4 in). Also for cold slitting up to 6,5 mm (1/4 in). Coining dies . Cold rolling mill rolls. Cold heading dies. Punches and dies for cold extrusion.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: Pre-heating: 790 - 830 ºC. Hardening: 1000 -1080 ºC. After preheating, tools must be carried to another furnace, holding 30 min after soaking (after tool is fully heated throughout). Quenching may be done in: a) Salt bath at 500/550 ºC. b) Warm quenching oil. c) Vacuum, with high pressure circulated gas. d) Air blast.
Tempering: 200 - 250 ºC (for higher hardness) 500 - 600 ºC (see diagram below). Tempering temperatures should be suitable to the required hardness. If hardness around 60 HRC is necessary, tempering in low temperatures should be employed. However, if 58 HRC or less are possible, tempering at 500 ºC or higher is preferable, in order to improve toughness. Double tempering is required and after each one tools must cool down to room temperature. After soaking, holding time of at least 2h is necessary.

Tempering Diagram

Price: 20.00 US $
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Non-Metallic Inclusions in Steel
Semiconductor Etchants

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