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EN 1.6956 Steel vs. S33425 Stainless Steel

Both EN 1.6956 steel and S33425 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 32 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 1.6956 steel and the bottom bar is S33425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 370
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.6
45
Fatigue Strength, MPa 680
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 730
400
Tensile Strength: Ultimate (UTS), MPa 1230
580
Tensile Strength: Yield (Proof), MPa 1120
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
27
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.2
5.1
Embodied Energy, MJ/kg 31
71
Embodied Water, L/kg 60
190

Common Calculations

PREN (Pitting Resistance) 2.8
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
210
Resilience: Unit (Modulus of Resilience), kJ/m3 3320
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 43
20
Strength to Weight: Bending, points 32
19
Thermal Diffusivity, mm2/s 12
3.7
Thermal Shock Resistance, points 36
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.28 to 0.38
0 to 0.080
Chromium (Cr), % 1.0 to 1.7
21 to 23
Iron (Fe), % 92.4 to 95.3
47.2 to 56.7
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 0.3 to 0.6
2.0 to 3.0
Nickel (Ni), % 2.9 to 3.8
20 to 23
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.020
Titanium (Ti), % 0
0.15 to 0.6
Vanadium (V), % 0.080 to 0.25
0