DIN 1.2344 / H13

DIN 1.2344 / H13 Tool Steel Product Overview

DIN1.2344/H13, also known as AISI H13, SKD61, or X40CrMoV5-1, is a chromium-molybdenum-vanadium hot work tool steel standardised for high-temperature applications. It is renowned for its excellent combination of high hardness, toughness, and heat resistance, making it ideal for hot and cold work tooling. Key features include high wear resistance to thermal shock, good mechanical properties at elevated temperatures, excellent machinability, and resistance to thermal fatigue and heat cracking.

Applications

DIN1.2344/H13 is widely used in both hot and cold work applications due to its versatility and durability:

Hot Work:

• Die casting tools for aluminium, magnesium, zinc, and copper alloys.
• Aluminium extrusion dies, liners, spindles, and press tooling.
• Forging dies, hot stamping, and extrusion die forging.
• Hot shear knives, hot punches, and hot gripper dies.
• Tools for the plastic industry, such as injection moulds.

Cold Work:

• Punching, heading, and inserting die blocks.
• Cold heading tools and shear blades.
• Other applications include thermal upsetting dies, jigs, hot embossing, and trimming tools.

Chemical Composition

The chemical composition of DIN1.2344/H13 contributes to its exceptional properties:

Element	C	Si	Mn	P	S	Cr	Mo	V
Content	0.35–0.50	0.90–1.00	0.30–0.50	≤0.030	≤0.030	4.75–5.00	1.10–1.50	0.80–1.00

• Molybdenum (Mo): Acts as a strengthening agent, improving high-temperature strength.
• Vanadium (V): Increases abrasion resistance at low and high temperatures and promotes toughness.
• Carbon (C): Provides hardness but is kept moderate (0.35–0.50%) to ensure toughness.

Supply Size

DIN1.2344/H13 is available in various forms and sizes to meet industrial requirements:

• Round Bars:
  Diameter ranges from 16 mm to 700 mm.
• Flat Bars:
  Minimum: 10 mm thickness x 80 mm width.
  Maximum: 500 mm thickness x 2000 mm width.