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SAE-AISI H42 Steel vs. N08801 Stainless Steel

Both SAE-AISI H42 steel and N08801 stainless steel are iron alloys. They have 50% 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 N08801 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
860

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1620
1390
Melting Onset (Solidus), °C 1570
1360
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 24
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 8.8
5.5
Embodied Energy, MJ/kg 130
79
Embodied Water, L/kg 98
200

Common Calculations

PREN (Pitting Resistance) 31
21
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 23 to 65
30
Strength to Weight: Bending, points 21 to 42
25
Thermal Diffusivity, mm2/s 6.5
3.3
Thermal Shock Resistance, points 20 to 57
20

Alloy Composition

Carbon (C), % 0.55 to 0.7
0 to 0.1
Chromium (Cr), % 3.8 to 4.5
19 to 22
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 79.3 to 83.8
39.5 to 50.3
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
30 to 34
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.75 to 1.5
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0