SAE-AISI H11 (T20811) Chromium Hot-Work Steel
Tool Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength690 to 1840MPa
Yield StrengthUnknown
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
0.33 to 0.43%
CR
4.8 to 5.5%
NI
0 to 0.3%
MO
1.1 to 1.6%
MN
0.2 to 0.5%
SI
0.8 to 1.2%
P
0 to 0.030%
S
0 to 0.030%
CU
0 to 0.25%
V
0.3 to 0.6%
FE
89.6 to 92.5%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Poisson's Ratio
0.29
Shear Modulus
74 GPa
Tensile Strength: Ultimate (UTS)
690 to 1840 MPa
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
270 J/g
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1410 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
42 W/m-K
Thermal Diffusivity
11 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
22 to 58 points
Electrical
Electrical Conductivity: Equal Volume
8.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
9.5 % IACS
Calculated
PREN (Pitting Resistance)
9.6
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
25 to 66 points
Strength to Weight: Bending
22 to 43 points
Environmental
Base Metal Price
5.5 % relative
Embodied Carbon
3.0 kg CO 2 /kg material
Embodied Energy
43 MJ/kg
Embodied Energy
43 MJ/kg 19 x 10 3 BTU/lb
Embodied Water
75 L/kg
Embodied Water
75 L/kg 8.9 gal/lb
Registered Designations & Aliases
SAE-AISI H11 (T20811) Chromium Hot-Work SteelT20811
Standards
ASTM A681 ASTM A681: Standard Specification for Tool Steels Alloy
SAE J437 SAE J437: Selection and Heat Treatment of Tool and Die Steels
SAE J437 SAE J437: Selection and Heat Treatment of Tool and Die Steels ASTM A681: Standard Specification for Tool Steels Alloy Tool Steels, 5th ed., George Roberts et al., 1998 Tool Steels: Properties and Performance, Rafael A. Mesquita (editor), 2016