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EN 1.4931 Steel vs. S44627 Stainless Steel

Both EN 1.4931 steel and S44627 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4931 steel and the bottom bar is S44627 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
24
Fatigue Strength, MPa 410
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 810
490
Tensile Strength: Yield (Proof), MPa 620
300

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
17
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.9
Embodied Energy, MJ/kg 42
41
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 16
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
100
Resilience: Unit (Modulus of Resilience), kJ/m3 970
220
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 6.5
4.6
Thermal Shock Resistance, points 22
16

Alloy Composition

Carbon (C), % 0.2 to 0.26
0 to 0.010
Chromium (Cr), % 11.3 to 12.2
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 83.2 to 86.8
69.2 to 74.2
Manganese (Mn), % 0.5 to 0.8
0 to 0.4
Molybdenum (Mo), % 1.0 to 1.2
0.75 to 1.5
Nickel (Ni), % 0 to 1.0
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.2
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.020
Tungsten (W), % 0 to 0.5
0
Vanadium (V), % 0.25 to 0.35
0