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EN 1.8881 Steel vs. EN 1.4951 Stainless Steel

Both EN 1.8881 steel and EN 1.4951 stainless 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 1.8881 steel and the bottom bar is EN 1.4951 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
38
Fatigue Strength, MPa 460
190
Impact Strength: V-Notched Charpy, J 90
98
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 510
430
Tensile Strength: Ultimate (UTS), MPa 830
630
Tensile Strength: Yield (Proof), MPa 710
220

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0.040 to 0.080
Chromium (Cr), % 0 to 1.5
24 to 26
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 91.9 to 100
49.1 to 57
Manganese (Mn), % 0 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.7
0
Nickel (Ni), % 0 to 2.5
19 to 22
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.015
0 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.8
0 to 0.7
Sulfur (S), % 0 to 0.0080
0 to 0.015
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0