Forged Steel DIN 1.2344 Tool Steel Bar

Forged Steel DIN 1.2344 Tool Steel Bar

1: DIN 1.2344 Steel Introduction

DIN 1.2344 steel is a high performance die steel with excellent heat and wear resistance and good machinability. 1.2344 steel is also a pressure-resistant hot work die steel, after electroslag remelting treatment, with uniform material, good hardenability, excellent machinability and polishing performance. Its chemical composition mainly includes carbon, silicon, manganese, chromium, molybdenum and other elements, the reasonable ratio of these elements makes 1.2344 steel has excellent heat resistance and wear resistance, can maintain high hardness and strength at high temperatures, is not easy to soften or deformation, suitable for long time high temperature working environment. In addition, 1.2344 steel also has good wear resistance, can resist the plastic injection molding and die casting process of high-speed wear and extend the service life of the mold.

1.2344 Steel Stock in Warehouse

2: DIN 1.2344 Quality Standard

DIN 1.2344 steel according to EN ISO4957.

3: DIN 1.2344 Steel Equivalent

4: DIN 1.2344 Steel Chemical Composition

5: DIN 1.2344 Steel Mechanical Properties

The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

6: DIN 1.2344 Steel Overviews

7: DIN 1.2344 Steel Application

Die Casting Mold: because 1.2344 die steel has excellent heat resistance and wear resistance, widely used in die casting metal parts of the mold manufacturing, such as aluminum alloy, zinc alloy and magnesium alloy die casting mold.

Plastic Injection Mold: suitable for injection molding plastic products molds, such as plastic parts, electronic products shell, etc., especially for heat resistance and abrasion resistance requirements of the higher injection molds.

Hot Work Molds: suitable for high temperature hot work molds, such as hot pressing molds, forging molds, extrusion molds, etc., can withstand high pressure and friction in a high temperature environment.

Plastic Extrusion Molds: Also commonly used in the manufacture of molds for extruding plastic products, such as plastic pipes, plates, films, etc.

Stamping Dies: 1.2344 die steel's high hardness and excellent wear resistance make it suitable for cold punching, punching shear, stamping and other stamping processes required for the mold.

8: DIN 1.2344 Steel Heat Treatment

Annealing

Heat slowly to 1550°-1650°F, hold until entire mass is heated through, and cool slowly in the furnace (40F per hour) to about 1000°F, after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.

Stress Relieving

When desirable to relieve the strains of machining, heat slowly to 1050°-1250°F, allow to equalize, and then cool in still air (Strain Relieving). Â

Preheat Prior to Hardening

Warm slightly before charging into the preheat furnace, which should be operating at 1400°-1500°F.

Hardening

DIN 1.2344 tool steel is a steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested. The temperature employed is usually 1800°-1850°F, depending on size section.

Quenching

Quench in still air or dry air blast. If complicated forms are to be hardened, an interrupted oil quench can be used. Quench part in oil and remove from bath when it just loses its color (1000°-1100°F). Finish cooling to below 150°-125°F in air, then temper immediately.

Tempering

Tempering practice may vary with size and application, but is usually performed in the range of maximum secondary hardness or higher. Double tempering is recommended. The results below is H13 that was air quenched from 1800°F and tempered for 4 hours at various temperatures. The results may be used as a guide, keeping in mind that parts of heavy section or mass may be several points lower in hardness.

9: DIN 1.2344 Steel Tolerance

10: Delivery Condition

For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed or QT, black surface or rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed or QT, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed or QT, black surface.