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EN 1.6982 Stainless Steel vs. EN 1.8958 Steel

Both EN 1.6982 stainless steel and EN 1.8958 steel are iron alloys. They have 83% of their average alloy composition in common. There are 30 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 1.6982 stainless steel and the bottom bar is EN 1.8958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
19
Fatigue Strength, MPa 350
150
Impact Strength: V-Notched Charpy, J 56
30
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 800
430
Tensile Strength: Yield (Proof), MPa 570
220

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 770
410
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
46
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.4
1.5
Embodied Energy, MJ/kg 33
19
Embodied Water, L/kg 110
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
70
Resilience: Unit (Modulus of Resilience), kJ/m3 820
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
15
Strength to Weight: Bending, points 25
16
Thermal Diffusivity, mm2/s 6.6
12
Thermal Shock Resistance, points 29
13

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.16
Chromium (Cr), % 12 to 13.5
0.35 to 0.85
Copper (Cu), % 0
0.2 to 0.6
Iron (Fe), % 78.7 to 84.5
96.5 to 99.3
Manganese (Mn), % 0 to 1.0
0.15 to 0.7
Molybdenum (Mo), % 0 to 0.7
0
Nickel (Ni), % 3.5 to 5.0
0 to 0.7
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.040