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EN 1.7729 Steel vs. EN 1.4516 Stainless Steel

Both EN 1.7729 steel and EN 1.4516 stainless 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7729 steel and the bottom bar is EN 1.4516 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
23
Fatigue Strength, MPa 500
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 560
350
Tensile Strength: Ultimate (UTS), MPa 910
550
Tensile Strength: Yield (Proof), MPa 750
320

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
720
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
30
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
2.0
Embodied Energy, MJ/kg 49
28
Embodied Water, L/kg 59
97

Common Calculations

PREN (Pitting Resistance) 4.4
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1500
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 32
20
Strength to Weight: Bending, points 27
19
Thermal Diffusivity, mm2/s 11
8.1
Thermal Shock Resistance, points 27
20

Alloy Composition

Aluminum (Al), % 0.015 to 0.080
0
Arsenic (As), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0.17 to 0.23
0 to 0.080
Chromium (Cr), % 0.9 to 1.2
10.5 to 12.5
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 94.8 to 97
83.3 to 89
Manganese (Mn), % 0.35 to 0.75
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.2
0.5 to 1.5
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015
Tin (Sn), % 0 to 0.020
0
Titanium (Ti), % 0.070 to 0.15
0.050 to 0.35
Vanadium (V), % 0.6 to 0.8
0