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EN 1.6958 Steel vs. AISI 416Se Stainless Steel

Both EN 1.6958 steel and AISI 416Se stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.6958 steel and the bottom bar is AISI 416Se stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
23
Fatigue Strength, MPa 700
210
Poisson's Ratio 0.29
0.28
Reduction in Area, % 56
50
Shear Modulus, GPa 73
76
Shear Strength, MPa 700
340
Tensile Strength: Ultimate (UTS), MPa 1140
540
Tensile Strength: Yield (Proof), MPa 1070
310

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 450
760
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
30
Thermal Expansion, µm/m-K 11
10

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
8.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.0
1.9
Embodied Energy, MJ/kg 27
27
Embodied Water, L/kg 60
100

Common Calculations

PREN (Pitting Resistance) 2.9
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
20
Strength to Weight: Bending, points 31
19
Thermal Diffusivity, mm2/s 13
8.1
Thermal Shock Resistance, points 39
20

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0 to 0.15
Chromium (Cr), % 1.2 to 1.7
12 to 14
Iron (Fe), % 92.6 to 94.5
83.1 to 87.9
Manganese (Mn), % 0.2 to 0.5
0 to 1.3
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.020
0 to 0.060
Selenium (Se), % 0
0.15 to 0.35
Silicon (Si), % 0.15 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.060
Vanadium (V), % 0 to 0.12
0