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EN 1.6956 Steel vs. EN 1.4855 Stainless Steel

Both EN 1.6956 steel and EN 1.4855 stainless steel are iron alloys. They have 53% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.6956 steel and the bottom bar is EN 1.4855 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 370
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.6
4.6
Fatigue Strength, MPa 680
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 1230
500
Tensile Strength: Yield (Proof), MPa 1120
250

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 440
1050
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
14
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
34
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.2
5.9
Embodied Energy, MJ/kg 31
85
Embodied Water, L/kg 60
200

Common Calculations

PREN (Pitting Resistance) 2.8
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
19
Resilience: Unit (Modulus of Resilience), kJ/m3 3320
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 43
18
Strength to Weight: Bending, points 32
18
Thermal Diffusivity, mm2/s 12
3.7
Thermal Shock Resistance, points 36
11

Alloy Composition

Carbon (C), % 0.28 to 0.38
0.3 to 0.5
Chromium (Cr), % 1.0 to 1.7
23 to 25
Iron (Fe), % 92.4 to 95.3
42.6 to 51.9
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.6
0 to 0.5
Nickel (Ni), % 2.9 to 3.8
23 to 25
Niobium (Nb), % 0
0.8 to 1.8
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
1.0 to 2.5
Sulfur (S), % 0 to 0.035
0 to 0.030
Vanadium (V), % 0.080 to 0.25
0