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EN 1.6958 Steel vs. EN 1.4913 Stainless Steel

Both EN 1.6958 steel and EN 1.4913 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 1.4913 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
14 to 22
Fatigue Strength, MPa 700
320 to 480
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 700
550 to 590
Tensile Strength: Ultimate (UTS), MPa 1140
870 to 980
Tensile Strength: Yield (Proof), MPa 1070
480 to 850

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 450
700
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
24
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
9.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.9
Embodied Energy, MJ/kg 27
41
Embodied Water, L/kg 60
97

Common Calculations

PREN (Pitting Resistance) 2.9
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
130 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
600 to 1860
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
31 to 35
Strength to Weight: Bending, points 31
26 to 28
Thermal Diffusivity, mm2/s 13
6.5
Thermal Shock Resistance, points 39
31 to 34

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0 to 0.020
Boron (B), % 0
0 to 0.0015
Carbon (C), % 0.25 to 0.3
0.17 to 0.23
Chromium (Cr), % 1.2 to 1.7
10 to 11.5
Iron (Fe), % 92.6 to 94.5
84.5 to 88.3
Manganese (Mn), % 0.2 to 0.5
0.4 to 0.9
Molybdenum (Mo), % 0.35 to 0.55
0.5 to 0.8
Nickel (Ni), % 3.3 to 3.8
0.2 to 0.6
Niobium (Nb), % 0
0.25 to 0.55
Nitrogen (N), % 0
0.050 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0 to 0.12
0.1 to 0.3