MakeItFrom.com
Menu (ESC)

EN 1.4903 Stainless Steel vs. SAE-AISI H12 Steel

Both EN 1.4903 stainless steel and SAE-AISI H12 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4903 stainless steel and the bottom bar is SAE-AISI H12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 670 to 680
690 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
36
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.9
Embodied Energy, MJ/kg 36
41
Embodied Water, L/kg 88
76

Common Calculations

PREN (Pitting Resistance) 13
12
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
24 to 65
Strength to Weight: Bending, points 22
22 to 42
Thermal Diffusivity, mm2/s 7.0
9.8
Thermal Shock Resistance, points 23
22 to 60

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0.3 to 0.4
Chromium (Cr), % 8.0 to 9.5
4.8 to 5.5
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 87.1 to 90.5
87.8 to 91.7
Manganese (Mn), % 0.3 to 0.6
0.2 to 0.5
Molybdenum (Mo), % 0.85 to 1.1
1.3 to 1.8
Nickel (Ni), % 0 to 0.4
0 to 0.3
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0.8 to 1.2
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
1.0 to 1.7
Vanadium (V), % 0.18 to 0.25
0 to 0.5