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EN 1.6956 Steel vs. S24000 Stainless Steel

Both EN 1.6956 steel and S24000 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.6956 steel and the bottom bar is S24000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 370
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.6
39
Fatigue Strength, MPa 680
370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 730
530
Tensile Strength: Ultimate (UTS), MPa 1230
770
Tensile Strength: Yield (Proof), MPa 1120
430

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 440
910
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
12
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 2.2
2.7
Embodied Energy, MJ/kg 31
39
Embodied Water, L/kg 60
150

Common Calculations

PREN (Pitting Resistance) 2.8
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
260
Resilience: Unit (Modulus of Resilience), kJ/m3 3320
470
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 43
28
Strength to Weight: Bending, points 32
24
Thermal Shock Resistance, points 36
16

Alloy Composition

Carbon (C), % 0.28 to 0.38
0 to 0.080
Chromium (Cr), % 1.0 to 1.7
17 to 19
Iron (Fe), % 92.4 to 95.3
61.5 to 69
Manganese (Mn), % 0.15 to 0.4
11.5 to 14.5
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 2.9 to 3.8
2.3 to 3.7
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030
Vanadium (V), % 0.080 to 0.25
0