H13 Tool Steel - DIN 1.2344 - X40CrMoV5-1 - JIS ~SKD 61
H13 is a hot work tool steel, can be water cooled, air or oil hardened and with good toughness. For even better toughness and purer material use H13 ESR.
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Imperial Steel Size
H13 Tool Steel Standard values
Working hardness:
50 HRC - 56 HRC
Delivery condition:
max. 229HB
Chemical composition in %
0.350000
0.350.420000
0.420.800000
0.81.200000
1.20.250000
0.250.500000
0.50.000000
00.030000
0.030.000000
00.020000
0.024.800000
4.85.500000
5.51.200000
1.21.500000
1.50.850000
0.851.150000
1.15H13 Tool Steel Technical Data
H13 Tool Steel Technical Properties
Hot work steel with excellent heat resistance and high wear resistance. Good toughness and thermal conductivity. Can be water cooled and is resistant to thermal shock.
H13 Tool Steel Applications
forging tools and dies, hot shear knives, hot extrusion tools, extrusion press tools, press tools, block receivers, die casting tools, light metal die casting, press mandrels, press dies, piecer plugs, screw production, rivet production, bolts production, ejectors, plastic molds
H13 General Information
H13 is an air hardening, 5% chromium tool steel which can be used for a wide variety of hot and cold work application. The addition of vanadium increases the resistance to abrasion and imparts superior properties at elevated temperatures. Due to its excellent toughness H13 is often used in cold work tools but with some loss of wear resistance. Apart from its high hot wear resistance and thermal cracking resistance, it also has high polishability, suitable for lens and cutlery molds. For the highest purity and homogeneousness use H13 ESR (ESR = Electro Slag Remelt).
Heat treatment
Annealing
To avoid damages to the surface of the material it should be annealed in a controlled atmosphere or should be packed in a suitable container, using a neutral packing compound.
Heat the part slowly through to a temperature of 1382-1472°F (750-800°C). Then slowly cool the material down by 50-68°F (10-20°C) per hour until the temperature of 1112°F (600°C) has been reached, then it can be cooled further in air.
Stress relieving
Heat the work piece to a temperature of 1112-1202°F (600-650°C) after machining to reduce stress and hold when uniformly heated through for about 1-2 hours in a neutral atmosphere. Then cool the part slowly in air.
Hardening
To control decarburization, use a controlled atmosphere furnace or pack the work piece in an inert material. Heat uniformly to a temperature of 1868-1940°F (1020-1060°C) and hold for 15-30 minutes and quench, following this up immediately with a tempering.
Quenching media
- Oil
- Air
- Vacuum
- Hot bath
Tempering
Immediately after hardening slowly heat the material to tempering temperature for a minimum of 1 hour per inch (25.4 mm) of thickness. Tempering temperature should be at least 50°F (10°C) higher than the expected maximum operating temperature of the work piece. Work pieces should be double tempered; a third tempering cycle can be advantageous to relieve stress.
For our tempering diagram, please click here.
Dimensional changes
H13, like other tool steels will hold its size best when quenched from the accurate hardening temperature. Overheated, the material tends to shrink after tempering and should therefore be avoided.
Machinability
Annealed, H13 can be machined without difficulty.
Forging
Slowly and uniformly heat the material to a temperature of 1900-2050°F (1038-1121°C). Do not let the temperature drop below 1650°F (899°C), if necessary, reheat to maintain the proper forging temperature.
Cool small and simple parts slowly in lime. Larger parts should be cooled down in a heated furnace at a uniform temperature of 1450°F (788°C), then turn the furnace off and let the parts cool down or use insulating material to cool it slowly.
Note, this is not an anneal, annealing should be done after the forgings are cooled down.
Welding
Good results can be achieved when welding tool steel, if the proper precautions are taken during welding (increased working temperature, joint preparation, choice of filler metals and the welding procedure). If the parts are being polished or photo-etched, it is necessary to work with a suitable electrode type of matching composition.
Disclaimer
The data shown here has been compiled with the greatest diligence and is regularly updated with regard to the correctness and completeness of its content. The content is indicative only and should not be taken as a warranty of specific properties of the product described or a warranty of suitability for a particular purpose. All information presented is given in good faith and no liability will be accepted for actions taken by third parties in reliance on this information. ABRAMS Industries reserves the right to change or amend the information given here in full or parts without prior notice.