Hardened H19 Tool Steel
Hardened SAE-AISI H19 is SAE-AISI H19 steel in the hardened (H) condition. The graph bars on the material properties cards below compare hardened SAE-AISI H19 to: tool steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Poisson's Ratio
0.29
Rockwell C Hardness
62
Shear Modulus
75 GPa 11 x 106 psi
Tensile Strength: Ultimate (UTS)
1990 MPa 290 x 103 psi
Thermal Properties
Latent Heat of Fusion
260 J/g
Melting Completion (Liquidus)
1540 °C 2800 °F
Melting Onset (Solidus)
1490 °C 2720 °F
Specific Heat Capacity
460 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
29 W/m-K 17 BTU/h-ft-°F
Thermal Expansion
12 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
22 % relative
Density
8.2 g/cm3 510 lb/ft3
Embodied Carbon
7.5 kg CO2/kg material
Embodied Energy
110 MJ/kg 49 x 103 BTU/lb
Embodied Water
110 L/kg 13 gal/lb
Common Calculations
PREN (Pitting Resistance)
13
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
68 points
Strength to Weight: Bending
43 points
Thermal Diffusivity
7.9 mm2/s
Thermal Shock Resistance
59 points
Alloy Composition
| Fe | 81.4 to 85.5 | |
| Cr | 4.0 to 4.8 | |
| Co | 4.0 to 4.5 | |
| W | 3.8 to 4.5 | |
| V | 1.8 to 2.2 | |
| Mo | 0.3 to 0.55 | |
| C | 0.32 to 0.45 | |
| Mn | 0.2 to 0.5 | |
| Si | 0.2 to 0.5 | |
| Ni | 0 to 0.3 | |
| Cu | 0 to 0.25 | |
| P | 0 to 0.030 | |
| S | 0 to 0.030 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM A681: Standard Specification for Tool Steels Alloy
Tool Steels: Properties and Performance, Rafael A. Mesquita (editor), 2016
ASM Specialty Handbook: Carbon and Alloy Steels, J. R. Davis (editor), 1996
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015