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EN 1.4419 Stainless Steel vs. EN 1.6956 Steel

Both EN 1.4419 stainless steel and EN 1.6956 steel are iron alloys. They have 87% 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 1.4419 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, % 11 to 17
9.6
Fatigue Strength, MPa 230 to 680
680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 410 to 950
730
Tensile Strength: Ultimate (UTS), MPa 660 to 1590
1230
Tensile Strength: Yield (Proof), MPa 370 to 1240
1120

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 790
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
2.2
Embodied Energy, MJ/kg 30
31
Embodied Water, L/kg 110
60

Common Calculations

PREN (Pitting Resistance) 16
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 3920
3320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 57
43
Strength to Weight: Bending, points 22 to 39
32
Thermal Diffusivity, mm2/s 8.1
12
Thermal Shock Resistance, points 23 to 55
36

Alloy Composition

Carbon (C), % 0.36 to 0.42
0.28 to 0.38
Chromium (Cr), % 13 to 14.5
1.0 to 1.7
Iron (Fe), % 82 to 86
92.4 to 95.3
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0.6 to 1.0
0.3 to 0.6
Nickel (Ni), % 0
2.9 to 3.8
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Vanadium (V), % 0
0.080 to 0.25