HOT WORK TOOL STEEL H19

Chromium hot-work device steels are assigned as gathering H steels as indicated by the AISI classification system. This arrangement of steels begin from H1 to H19. H19 chromium hot-work steel has a decent resistance to abrasion and wear because of the vanadium content.

It is suggested for use in troublesome hot work tooling applications, for example, brass extrusion tooling and brass die casting dies.




Chemical Composition


Element
Content(%)
Carbon, C0.32-0.45
Manganese, Mn 0.20-0.50
Silicon, Si0.20-0.50
Molybdenum, Mo0.30-0.55
Chromium,Cr4.00-4.75
Vanadium, V1.75-2.20
Copper,Cu0.25
Phosphorous, P0.03
Sulfur, S0.03
W3.75-4.50
Nickel,Ni0.3
Co4.00-4.50

Physical Properties


Properties
Condition
Density7.98 ×1000 kg/m325

Mechanical Properties


Properties
Metric
Imperial
Hardness, Rockwell C (air cooled from 1204°C; 704°C temper temperature) 41 41
Hardness, Rockwell C (air cooled from 1204°C; 482°C temper temperature) 57 57
Hardness, Rockwell C (air cooled from 1204°C; 530°C temper temperature) 58 58
Machinability (1% carbon steel) 55.0 - 60.0% 55.0 - 60.0%

Thermal Properties


Properties
Condition
Thermal expansion (@20-100ºC/68-212ºF) 11 x 10-6/ºC 20-100ºC


Features


   Welding

   Machinability

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