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EN 1.7233 Steel vs. EN 1.4438 Stainless Steel

Both EN 1.7233 steel and EN 1.4438 stainless steel are iron alloys. They have 65% 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 1.7233 steel and the bottom bar is EN 1.4438 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 290
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 23
41
Fatigue Strength, MPa 270 to 530
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 450 to 590
420
Tensile Strength: Ultimate (UTS), MPa 700 to 960
620
Tensile Strength: Yield (Proof), MPa 380 to 780
250

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
1000
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
4.4
Embodied Energy, MJ/kg 21
60
Embodied Water, L/kg 53
160

Common Calculations

PREN (Pitting Resistance) 3.3
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
200
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1630
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 34
22
Strength to Weight: Bending, points 22 to 28
20
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 21 to 28
14

Alloy Composition

Carbon (C), % 0.39 to 0.45
0 to 0.030
Chromium (Cr), % 1.2 to 1.5
17.5 to 19.5
Iron (Fe), % 96.2 to 97.5
57.3 to 66.5
Manganese (Mn), % 0.4 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.5 to 0.7
3.0 to 4.0
Nickel (Ni), % 0
13 to 16
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015