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EN 1.7729 Steel vs. EN 1.4828 Stainless Steel

Both EN 1.7729 steel and EN 1.4828 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 32 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 1.7729 steel and the bottom bar is EN 1.4828 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
33
Fatigue Strength, MPa 500
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 560
430
Tensile Strength: Ultimate (UTS), MPa 910
650
Tensile Strength: Yield (Proof), MPa 750
260

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 430
1000
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1430
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
3.4
Embodied Energy, MJ/kg 49
48
Embodied Water, L/kg 59
150

Common Calculations

PREN (Pitting Resistance) 4.4
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
170
Resilience: Unit (Modulus of Resilience), kJ/m3 1500
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 32
23
Strength to Weight: Bending, points 27
22
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 27
14

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 0.2
Chromium (Cr), % 0.9 to 1.2
19 to 21
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 94.8 to 97
61.1 to 68.5
Manganese (Mn), % 0.35 to 0.75
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.2
11 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.4
1.5 to 2.5
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
Vanadium (V), % 0.6 to 0.8
0