DIN 1.2344 Hot Rolled Tool Steel Bar

DIN 1.2344 Hot Rolled 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: Qilu Company Profile

Hunan Qilu was engaged in steel exporting since 2008 year, the former was the sales company for Qilu Special Steel co.,ltd which was founded in 1986 year. Now Hunan Qilu Metal is one of most professional steel manufacturer and exporter in China. We already exported steel material to Germany, UK, Ireland, Greece, Italy, Poland,Belgium, Estonia, Latvia, Spain, France, Netherlands, Portugal, Czech republic, Finland, Russia, Belarus, Canada, Mexico, Brazil, Chile, Colombia, Peru, Argentina, Venezuela, Thailand, Indonesia, Vietnam, Singapore, Malaysia, Philippines, UAE, South Africa, Zambia, Australia etc.

7: Production Equipment

The company owns advanced special steel smelting facilities and forging processing equipment, the main steel-making equipment include 2 set of 50t and 25t ultra-high power electric arc furnaces, 2 set of 60t and 30t LF refining furnaces, 2 set of 60t and 30t vacuum degassing refining furnace. 4 sets of 1-20t electroslag re-melting furnaces.

The main forging equipment mainly include:3 sets of 3t 5t and 8t electro-hydraulic hammers, 3 sets of high-speed forging units of 1600t, 2000t and 4500t respectively.

8: Our Company Certificate

We already passed ISO 9000 : 2015 certificate of quality system, and we could supply steel forging material with all kinds of Classification Society Certification, such as ABS, ,DNV, BV, CCS etc. We also supplied steel material to oil industry with API certificate, such as API20B, API6A etc.

9: Stock&Warehouse

Besides forging material, we also supply hot rolled material from Dongbei special steel, Tiangong, Changcheng special steel, Lihuai Special Steel, Laisteel, Juneng steel, Yongsteel, Xinxin steel, Shijiazhuang steel etc. We have two warehouses for hot rolled material. Further processing such as heating treatment, rough machining and milled are also provided by us.

10: DIN 1.2344 Steel Overviews

11: DIN 1.2344 Steel Tolerance

12: Packing& Delivery

For the delivery, we will choose LCL, FCL and Bulk carrier according to order quantity. Usually if the quantity is less than 10tons, we will recommend LCL. If the quantity is more than 100tons, we will recommend bulk carrier. Usually FCL will be the most common for delivery.

In order to better ensure the safety of your goods, we will provide professional, environmentally friendly, convenient and efficient packaging services. Such as pallet, wooden box, package with woven bag etc.

13: 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.

14: 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.

15: 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.