Description

H13 ESR Hot Work Tool Steel | 1.2344 ESR Steel exclusive range available in stock.

H13 steel is a tool steel that is available with us in Electro-Slag-Remelted (ESR) grade.

AISI-H13 ESR grade is used mainly for Aluminum Pressure Die Casting & in components where we have high working temperatures and high-pressure strength.

H13 has high toughness and good resistance to thermal fatigue cracking, thus it is used for more hot work tooling applications in comparison to any other tool steel.

High toughness and good stability in the heat treatment.

H13 tool steel is also used in cold work tool applications.

Thus H13 gives better hardenability and good wear resistance.

H13 ESR Hot Work Tool Steel Chemical Composition:-

C	Si	Mn	P	S	Cr	Mo	V
0.32	0.90	0.20	0.030	0.030	4.75	1.10	0.80
0.45	1.25	0.60	max	max	5.50	1.75	1.25

H13 ESR Hot Work Tool Steel Forging:-

H13 Steel is slowly preheated to 750°C and then the temperature is increased rapidly to 1050-1100 °C. Forging should not be done below 850°C.  Then slowly cool it in either furnace or in vermiculite.

Annealing of H13 ESR Hot Work Tool Steel:- 

Hardening of the H13 ESR Hot Work Tool Steel:-

H13 tool component is preheated to 780-820°C. After a thorough soaking.

the temperature is increased rapidly to  1000-1030°C.

When the H13 has attained this temperature, Again soaking for approximately 30 minutes is done at this raised temperature and then cooled in air.

Quenching is done in oil.

Isothermal molten salt bath treatment is recommended in order to reduce decarburization or scaling.

Salt is preheated at 780-820°C and then transfer to a  salt bath with 1000-1030°C.

Soaking and quenching are done into salt standing at 500-550°C.

Let it equalize, then withdraw and cool in the air.

H13  tool steel can be vacuum hardened / pack hardened.

Tempering is to be done after the tool steel has become hand warm.

 

Tempering:- 

Uniform heating is to be done to the required temperature with a soaking time of 2 hours / 25mm of section.

Let it cool in the air. Second tempering is recommended.

H13 tool is allowed to cool at room temperature between the tempers.

The tempering range is 530-650°C which depends on the hardness requirements and also on the operating temperature of the H13 tool.

 

Stress Relieving:-

In order to minimize distortion or cracking during the heat treatment.

stress relieving is advised, especially when heavy machining is to be carried out.

This procedure must be done after rough machining.

H13 component to be heated carefully to 700°C, with good soaking time (2 hours/ 25mm of section) and then cooled in the furnace or in the air.

Before the hardening process, the tool component must be finished machined.

 

Heat Treatment:- 

This procedure will vary according to the shape and size of H13 tool component.

The rate of heating, rate of cooling, soaking time also will differ due to the shape and size of H13.

Other factors like the type of furnace, medium for quenching, etc also matter.

H13 steel ( H13 Hot Die Steel) is a chromium, molybdenum, vanadium hot work tool steel.

STANDARD	C	MN	SI	P	S	CR	MO	NI	V	W	CO
H13 Steel	0.32 - 0.45	0.2 - 0.6	0.03	0.03	0.8 - 1.25	4.75 - 5.50	1.10 - 1.75	-	0.80 - 1.20	-	-
DIN 1.2344 /X40CrMoV5-1	0.35 - 0.42	0.25 - 0.50	0.03	0.02	0.80 - 1.20	4.8 - 5.5	1.1 - 1.5	-	0.85 - 1.15	-	-
SKD61	0.35 - 0.42	0.25 - 0.50	0.03	0.02	0.80 - 1.20	4.8 - 5.5	1.0 - 1.5	-	0.80 - 1.15