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EN 1.6958 Steel vs. EN 1.4877 Stainless Steel

Both EN 1.6958 steel and EN 1.4877 stainless steel are iron alloys. They have 45% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6958 steel and the bottom bar is EN 1.4877 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
36
Fatigue Strength, MPa 700
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 700
420
Tensile Strength: Ultimate (UTS), MPa 1140
630
Tensile Strength: Yield (Proof), MPa 1070
200

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 450
1150
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
12
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
37
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.0
6.2
Embodied Energy, MJ/kg 27
89
Embodied Water, L/kg 60
220

Common Calculations

PREN (Pitting Resistance) 2.9
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
180
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
22
Strength to Weight: Bending, points 31
20
Thermal Diffusivity, mm2/s 13
3.2
Thermal Shock Resistance, points 39
15

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0 to 0.025
Carbon (C), % 0.25 to 0.3
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 1.2 to 1.7
26 to 28
Iron (Fe), % 92.6 to 94.5
36.4 to 42.3
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0.15 to 0.3
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.010
Vanadium (V), % 0 to 0.12
0