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EN 1.4634 Stainless Steel vs. EN 1.7230 Steel

Both EN 1.4634 stainless steel and EN 1.7230 steel are iron alloys. They have 80% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4634 stainless steel and the bottom bar is EN 1.7230 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
11 to 12
Fatigue Strength, MPa 180
320 to 460
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 540
720 to 910
Tensile Strength: Yield (Proof), MPa 280
510 to 740

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 900
420
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 21
44
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.5
Embodied Energy, MJ/kg 42
20
Embodied Water, L/kg 140
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
79 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 200
700 to 1460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
26 to 32
Strength to Weight: Bending, points 19
23 to 27
Thermal Diffusivity, mm2/s 5.8
12
Thermal Shock Resistance, points 19
21 to 27

Alloy Composition

Aluminum (Al), % 0.2 to 1.5
0
Carbon (C), % 0 to 0.030
0.3 to 0.37
Chromium (Cr), % 17.5 to 18.5
0.8 to 1.2
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 74.9 to 81.8
96.7 to 98.3
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.3
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.3 to 1.0
0
Phosphorus (P), % 0 to 0.050
0 to 0.025
Silicon (Si), % 0.2 to 1.5
0 to 0.6
Sulfur (S), % 0 to 0.050
0 to 0.030