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SAE-AISI H14 Steel vs. S31730 Stainless Steel

Both SAE-AISI H14 steel and S31730 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H14 steel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 710 to 2030
540

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1530
1430
Melting Onset (Solidus), °C 1490
1390
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 15
24
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 2.7
4.6
Embodied Energy, MJ/kg 39
63
Embodied Water, L/kg 73
180

Common Calculations

PREN (Pitting Resistance) 13
30
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 69
19
Strength to Weight: Bending, points 22 to 44
18
Thermal Shock Resistance, points 24 to 68
12

Alloy Composition

Carbon (C), % 0.35 to 0.45
0 to 0.030
Chromium (Cr), % 4.8 to 5.5
17 to 19
Copper (Cu), % 0 to 0.25
4.0 to 5.0
Iron (Fe), % 86.5 to 89.9
52.4 to 61
Manganese (Mn), % 0.2 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.3
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.8 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 4.0 to 5.3
0