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Help CenterHot Work H13 Steel , 1.2344/SKD 61 Square Billet
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H13 Tool SteelH13 tool steel stockholders and suppliers. Ahonest stainless steel Co,. Ltd are suppliers of H13 tool steel in round bar, diameters and plate, cut to your requirements. As a reliable hot work steel it is suitable for a wide variety of applications. It combines very good red-hardness with toughness and tools may be water-cooled in service. H13 may be cold-hobbed in the annealed condition.______________________________________________________________________________Composition
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
V |
|
|---|---|---|---|---|---|---|---|---|---|
H13 |
min. max. |
0.32 0.45 |
0.20 0.50 |
0.80 1.20 |
- 0.030 |
- 0.030 |
4.75 5.50 |
1.10 1.75 |
0.80 1.20 |
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| Applications |
Typical applications include die casting dies for aluminium, magnesium and zinc, extrusion dies for aluminium and brass, liners, mandrels, pressure pads, followers, bolsters, die cases, die holders and adaptor rings for copper and brass extrusion. H13 is used to produce hot stamping and press forge dies, split hot heading dies, gripper dies, hot punching, piercing and trimming tools. Other applications include plastic moulds, shear blades for hot work and hot swaging dies.
|
| Forging | Preheat slowly to 750°C then increase the temperature more rapidly to 1050-1100 °C. Do not forge below 850°C. It is essential to cool the H13 slowly after forging, either in a furnace or in vermiculite. |
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| Annealing | Soak thoroughly at 840-860°C before furnace cooling at a maximum rate of 20°C per hour down to 600°C followed by cooling in air. |
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| Stress Relieving | When tools made from H13 tool steel are heavily machined or ground , the relief of internal strains is advisable before hardening to minimise the possibility of distortion. Stress relieving should be done after rough machining. To stress relieve, heat the component carefully to 700°C, allow a good soaking period (two hours per 25mm of ruling section). Cool in the furnace or in air. The tools may then be finish machined before hardening. |
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| Hardening | Preheat to 780-820°C. Soak thoroughly, then increase rapidly to the final hardening temperature of 1000-1030°C. When the H13 has attained this temperature, soak for approximately thrity minutes. Cool in air. Large sections may be quenched in oil. To reduce scaling or decarburisation, we recommend isothermal molten salt bath treatment. Preheat in salt at 780-820°C then transfer to salt bath standing at 1000-1030°C. Soak and quench into salt standing at 500-550°C. Allow to equalise, withdraw and cool in air. Alternatively, this tool steel may be vacuum hardened or pack hardened. Tools should be tempered as soon as they become hand warm. |
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| Tempering |
Heat uniformly to the required temperature allowing a soaking time of two hours per 25mm of ruling section. Withdraw from the furnace and allow to cool in air. A second tempering is strongly recommended, the H13 tool being allowed to cool to room temperature between tempers. The usual tempering range is 530-650°C depending on the hardness requirements and the operating temperature of the tool. Temperature [°C]400500550600650Hardness [HRc]5456544947 |
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| Welding |
In general, we do not advise the welding of tool steel but users sometimes prefer to weld in order to avoid the cost of retooling. It should be remembered that this grade is an air hardening steel and that in welding the area of the weld attains a temperature of about 1000°C. Cracking is likely to occur during cooling unless proper precautions are taken. Popular methods of welding are atomic hydrogen and argon arc. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding tool steels. Welding Procedure 1) It is desirable to anneal the tool prior to welding but with care welding may be done on hardened and tempered tools. |
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| Heat Treatment | Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each H13 tool steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of tool steels. |
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Contact:LIUEmail: sales@ahoneststeel.comCell:0086 18915272882
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