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S64512 Stainless Steel vs. EN 1.6958 Steel

Both S64512 stainless steel and EN 1.6958 steel are iron alloys. They have 88% of their average alloy composition in common. There are 34 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 S64512 stainless steel and the bottom bar is EN 1.6958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
16
Fatigue Strength, MPa 540
700
Impact Strength: V-Notched Charpy, J 47
63
Poisson's Ratio 0.28
0.29
Reduction in Area, % 34
56
Shear Modulus, GPa 76
73
Shear Strength, MPa 700
700
Tensile Strength: Ultimate (UTS), MPa 1140
1140
Tensile Strength: Yield (Proof), MPa 890
1070

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 750
450
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 28
47
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.3
2.0
Embodied Energy, MJ/kg 47
27
Embodied Water, L/kg 110
60

Common Calculations

PREN (Pitting Resistance) 18
2.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
180
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
3050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
40
Strength to Weight: Bending, points 31
31
Thermal Diffusivity, mm2/s 7.5
13
Thermal Shock Resistance, points 42
39

Alloy Composition

Aluminum (Al), % 0
0.0050 to 0.050
Carbon (C), % 0.080 to 0.15
0.25 to 0.3
Chromium (Cr), % 11 to 12.5
1.2 to 1.7
Iron (Fe), % 80.6 to 84.7
92.6 to 94.5
Manganese (Mn), % 0.5 to 0.9
0.2 to 0.5
Molybdenum (Mo), % 1.5 to 2.0
0.35 to 0.55
Nickel (Ni), % 2.0 to 3.0
3.3 to 3.8
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.35
0.15 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0.25 to 0.4
0 to 0.12