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SAE-AISI A4 Steel vs. EN 1.4913 Stainless Steel

Both SAE-AISI A4 steel and EN 1.4913 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A4 steel and the bottom bar is EN 1.4913 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 710 to 2050
870 to 980

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
24
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
9.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
2.9
Embodied Energy, MJ/kg 24
41
Embodied Water, L/kg 59
97

Common Calculations

PREN (Pitting Resistance) 5.3
14
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 73
31 to 35
Strength to Weight: Bending, points 23 to 46
26 to 28
Thermal Diffusivity, mm2/s 11
6.5
Thermal Shock Resistance, points 23 to 67
31 to 34

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0015
Carbon (C), % 1.0 to 1.1
0.17 to 0.23
Chromium (Cr), % 0.9 to 2.2
10 to 11.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 92 to 95.5
84.5 to 88.3
Manganese (Mn), % 1.8 to 2.2
0.4 to 0.9
Molybdenum (Mo), % 0.9 to 1.4
0.5 to 0.8
Nickel (Ni), % 0 to 0.3
0.2 to 0.6
Niobium (Nb), % 0
0.25 to 0.55
Nitrogen (N), % 0
0.050 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.1 to 0.3

Comparable Variants