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EN 1.4724 Stainless Steel vs. EN 1.6956 Steel

Both EN 1.4724 stainless steel and EN 1.6956 steel are iron alloys. They have 86% 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 1.4724 stainless steel and the bottom bar is EN 1.6956 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
370
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
9.6
Fatigue Strength, MPa 170
680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 340
730
Tensile Strength: Ultimate (UTS), MPa 550
1230
Tensile Strength: Yield (Proof), MPa 280
1120

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 850
440
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 21
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
31
Embodied Water, L/kg 110
60

Common Calculations

PREN (Pitting Resistance) 13
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
3320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
43
Strength to Weight: Bending, points 19
32
Thermal Diffusivity, mm2/s 5.6
12
Thermal Shock Resistance, points 19
36

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0.28 to 0.38
Chromium (Cr), % 12 to 14
1.0 to 1.7
Iron (Fe), % 82.2 to 86.6
92.4 to 95.3
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 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), % 0.7 to 1.4
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Vanadium (V), % 0
0.080 to 0.25