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EN 1.4951 Stainless Steel vs. EN 1.8879 Steel

Both EN 1.4951 stainless steel and EN 1.8879 steel are iron alloys. They have 56% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4951 stainless steel and the bottom bar is EN 1.8879 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 38
16
Fatigue Strength, MPa 190
460
Impact Strength: V-Notched Charpy, J 98
67
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 430
510
Tensile Strength: Ultimate (UTS), MPa 630
830
Tensile Strength: Yield (Proof), MPa 220
710

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 25
3.7
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
1.9
Embodied Energy, MJ/kg 61
26
Embodied Water, L/kg 190
54

Common Calculations

PREN (Pitting Resistance) 26
2.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 130
1320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
29
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 14
24

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.040 to 0.080
0 to 0.2
Chromium (Cr), % 24 to 26
0 to 1.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 49.1 to 57
91.9 to 100
Manganese (Mn), % 0 to 2.0
0 to 1.7
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 19 to 22
0 to 2.5
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0 to 0.1
0 to 0.015
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.12
Zirconium (Zr), % 0
0 to 0.15