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EN 1.4945 Stainless Steel vs. SAE-AISI H14 Steel

Both EN 1.4945 stainless steel and SAE-AISI H14 steel are iron alloys. They have 71% 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 1.4945 stainless steel and the bottom bar is SAE-AISI H14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 640 to 740
710 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1490
1530
Melting Onset (Solidus), °C 1440
1490
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 14
35
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
10

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 5.0
2.7
Embodied Energy, MJ/kg 73
39
Embodied Water, L/kg 150
73

Common Calculations

PREN (Pitting Resistance) 23
13
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 25
24 to 69
Strength to Weight: Bending, points 20 to 22
22 to 44
Thermal Diffusivity, mm2/s 3.7
9.3
Thermal Shock Resistance, points 14 to 16
24 to 68

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.35 to 0.45
Chromium (Cr), % 15.5 to 17.5
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 57.9 to 65.7
86.5 to 89.9
Manganese (Mn), % 0 to 1.5
0.2 to 0.5
Nickel (Ni), % 15.5 to 17.5
0 to 0.3
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.3 to 0.6
0.8 to 1.2
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.5 to 3.5
4.0 to 5.3