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SAE-AISI H42 Steel vs. EN 1.4374 Stainless Steel

Both SAE-AISI H42 steel and EN 1.4374 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H42 steel and the bottom bar is EN 1.4374 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
800

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1620
1400
Melting Onset (Solidus), °C 1570
1360
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
14
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.8
2.9
Embodied Energy, MJ/kg 130
42
Embodied Water, L/kg 98
150

Common Calculations

PREN (Pitting Resistance) 31
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23 to 65
29
Strength to Weight: Bending, points 21 to 42
25
Thermal Diffusivity, mm2/s 6.5
4.0
Thermal Shock Resistance, points 20 to 57
17

Alloy Composition

Carbon (C), % 0.55 to 0.7
0.050 to 0.1
Chromium (Cr), % 3.8 to 4.5
17.5 to 18.5
Copper (Cu), % 0 to 0.25
0 to 0.4
Iron (Fe), % 79.3 to 83.8
63.5 to 67.9
Manganese (Mn), % 0.15 to 0.4
9.0 to 10
Molybdenum (Mo), % 4.5 to 5.5
0 to 0.5
Nickel (Ni), % 0 to 0.3
5.0 to 6.0
Nitrogen (N), % 0
0.25 to 0.32
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0