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EN 1.4935 Stainless Steel vs. EN 1.6956 Steel

Both EN 1.4935 stainless steel and EN 1.6956 steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4935 stainless steel and the bottom bar is EN 1.6956 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 18
9.6
Fatigue Strength, MPa 350 to 400
680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 480 to 540
730
Tensile Strength: Ultimate (UTS), MPa 780 to 880
1230
Tensile Strength: Yield (Proof), MPa 570 to 670
1120

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 740
440
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 24
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.9
2.2
Embodied Energy, MJ/kg 42
31
Embodied Water, L/kg 100
60

Common Calculations

PREN (Pitting Resistance) 16
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 830 to 1160
3320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 31
43
Strength to Weight: Bending, points 24 to 26
32
Thermal Diffusivity, mm2/s 6.5
12
Thermal Shock Resistance, points 27 to 30
36

Alloy Composition

Carbon (C), % 0.17 to 0.24
0.28 to 0.38
Chromium (Cr), % 11 to 12.5
1.0 to 1.7
Iron (Fe), % 83 to 86.7
92.4 to 95.3
Manganese (Mn), % 0.3 to 0.8
0.15 to 0.4
Molybdenum (Mo), % 0.8 to 1.2
0.3 to 0.6
Nickel (Ni), % 0.3 to 0.8
2.9 to 3.8
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.1 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0.2 to 0.35
0.080 to 0.25