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SAE-AISI H12 Steel vs. EN 1.4849 Stainless Steel

Both SAE-AISI H12 steel and EN 1.4849 stainless steel are iron alloys. They have 45% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H12 steel and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 690 to 1850
480

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1480
1390
Melting Onset (Solidus), °C 1440
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 36
12
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
42
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.9
7.1
Embodied Energy, MJ/kg 41
100
Embodied Water, L/kg 76
200

Common Calculations

PREN (Pitting Resistance) 12
20
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 65
17
Strength to Weight: Bending, points 22 to 42
17
Thermal Diffusivity, mm2/s 9.8
3.2
Thermal Shock Resistance, points 22 to 60
11

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.3 to 0.5
Chromium (Cr), % 4.8 to 5.5
18 to 21
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87.8 to 91.7
32.6 to 43.5
Manganese (Mn), % 0.2 to 0.5
0 to 2.0
Molybdenum (Mo), % 1.3 to 1.8
0 to 0.5
Nickel (Ni), % 0 to 0.3
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.8 to 1.2
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.0 to 1.7
0
Vanadium (V), % 0 to 0.5
0