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EN 1.7725 Steel vs. EN 1.4835 Stainless Steel

Both EN 1.7725 steel and EN 1.4835 stainless steel are iron alloys. They have 68% 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 1.7725 steel and the bottom bar is EN 1.4835 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250 to 300
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
43
Fatigue Strength, MPa 390 to 550
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 830 to 1000
750
Tensile Strength: Yield (Proof), MPa 610 to 860
350

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 440
1150
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.8
3.3
Embodied Energy, MJ/kg 24
47
Embodied Water, L/kg 54
160

Common Calculations

PREN (Pitting Resistance) 2.8
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
270
Resilience: Unit (Modulus of Resilience), kJ/m3 980 to 1940
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 35
27
Strength to Weight: Bending, points 25 to 28
24
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 24 to 29
16

Alloy Composition

Carbon (C), % 0.27 to 0.34
0.050 to 0.12
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 1.3 to 1.7
20 to 22
Iron (Fe), % 95.7 to 97.5
62 to 68.4
Manganese (Mn), % 0.6 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.3 to 0.5
0
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.6
1.4 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0.050 to 0.15
0