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Help CenterW.-Nr. 1.2344, DIN X40CrMoV5-1, AISI H13, JIS SKD61 Hot Work Tool Steel Round Bar
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W.-Nr. 1.2344, DIN X40CrMoV5-1, AISI H13, JIS SKD61 hot work tool steel round bar
Description
H13 is a chromium-molybdenumvanadium alloyed steel which is characterized by:
• Good resistance to abrasion at both low and high temperatures
• High level of toughness and ductility
• Uniform and high level of machinability and polishability
• Good high-temperature strength and resistance to thermal fatigue
• Excellent through-hardening properties
• Very limited distortion during hardening.
Chemical compositon ( in weight % )
| C | Mn | Si | Cr | Mo | V |
| 0.40 | 0.40 | 1.00 | 5.25 | 1.35 | 1.00 |
Standard specification
| AISI H13, W.-Nr. 1.2344, DIN X40CrMo15-1, JIS SKD61 |
Delivery state
Soft annealed to 185 HB approx.
Applications
H-13 has been used for hot working tools requiring the greatest possible toughness.
Typical applications included:
Forging Dies
Die Casting Dies
Bolt Dies
Hot Piercing Punches
Forming Punches
Aluminum Extrusion Dies
Heat treatment
Annealing : For annealing, the steel should either be packed in a suitable container, using a neutral packing compound,
or placed in a controlled atmosphere furnace. Heat uniformly to 843 / 871 °C and cool very slowly in the furnace at a rate of
not more than minus 1 °C per hour until the furnace is black.
The furnace may then be turned off and allowed to cool naturally. This will produce a maximum hardness of 241 BHN.
Hardening : H-13 may be air treated or quenched in oil to harden. For air treating, heat the furnace to 1010 / 1024 °C, and
then place the tool in the hot furnace near the thermocouple. Let the tool heat ‘naturally’ until it uniformly matches the color
of the thermocouple, soak 20 minutes plus an additional 5 minutes per inch of thickness and air cool.
When oil treating H-13, follow the same procedure but drop the temperature to 996 / 1010 °C.
Control of decarburization can be accomplished by using any one of the modern heat-treating furnaces designed for this purpose. If endothermic atmosphere are used, dew point between +4 / 13 °C is suggested. In older type manually operated exothermic atmospheric furnaces, an oxidizing atmosphere is required. Excess oxygen of about 2 to 4% is preferred.
If no atmosphere is available, the tool should be pack hardened or wrapped in stainless steel foil to protect its surface.
EFFECT OF TEMPERING TEMPERATURES ON HARDNESS OF H-13 HOT WORK DIE STEEL :
Air Quenched from 1875 °F (1024 °C) or Oil Quenched from 1850 degree F (1010 °C) (Tempered 1 Hour at Temperature)
| Tempering Temperature | Rockwell C Hardness Air or Oil Treated | |
| °F | °c | |
| As Hardened | 51 / 53 | |
| 600 | 316 | 51 / 53 |
| 800 | 427 | 51 / 53 |
| 900 | 482 | 51 / 53 |
| 950 | 510 | 52 / 54 |
| 1000 | 538 | 52 / 54 |
| 1050 | 566 | 51 / 53 |
| 1100 | 593 | 49 / 51 |
| 1150 | 621 | 45 / 47 |
| 1200 | 649 | 39 / 41 |
| 1250 | 677 | 31 / 33 |
| 1300 | 704 | 28 / 30 |
Contact:LIU
Email: sales@ahoneststeel.com
Cell:+86 18915272882
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