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SAE-AISI 1144 Steel vs. EN 1.4855 Stainless Steel

Both SAE-AISI 1144 steel and EN 1.4855 stainless steel are iron alloys. They have 49% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1144 steel and the bottom bar is EN 1.4855 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
4.6
Fatigue Strength, MPa 280 to 430
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 750 to 840
500
Tensile Strength: Yield (Proof), MPa 420 to 690
250

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1050
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
14
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
34
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
5.9
Embodied Energy, MJ/kg 19
85
Embodied Water, L/kg 47
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 110
19
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 1290
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 30
18
Strength to Weight: Bending, points 23 to 25
18
Thermal Diffusivity, mm2/s 14
3.7
Thermal Shock Resistance, points 22 to 24
11

Alloy Composition

Carbon (C), % 0.4 to 0.48
0.3 to 0.5
Chromium (Cr), % 0
23 to 25
Iron (Fe), % 97.5 to 98
42.6 to 51.9
Manganese (Mn), % 1.4 to 1.7
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
23 to 25
Niobium (Nb), % 0
0.8 to 1.8
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
1.0 to 2.5
Sulfur (S), % 0.24 to 0.33
0 to 0.030