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SAE-AISI H42 Steel vs. EN 1.4347 Stainless Steel

Both SAE-AISI H42 steel and EN 1.4347 stainless steel are iron alloys. They have 70% 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 H42 steel and the bottom bar is EN 1.4347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
660

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1620
1410
Melting Onset (Solidus), °C 1570
1370
Specific Heat Capacity, J/kg-K 440
490
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
16
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.8
3.1
Embodied Energy, MJ/kg 130
44
Embodied Water, L/kg 98
170

Common Calculations

PREN (Pitting Resistance) 31
28
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23 to 65
24
Strength to Weight: Bending, points 21 to 42
22
Thermal Diffusivity, mm2/s 6.5
4.0
Thermal Shock Resistance, points 20 to 57
19

Alloy Composition

Carbon (C), % 0.55 to 0.7
0 to 0.050
Chromium (Cr), % 3.8 to 4.5
25 to 27
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 79.3 to 83.8
62.2 to 69.4
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0