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EN 1.7365 Steel vs. EN 1.4438 Stainless Steel

Both EN 1.7365 steel and EN 1.4438 stainless steel are iron alloys. They have 69% 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 1.7365 steel and the bottom bar is EN 1.4438 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
41
Fatigue Strength, MPa 320
220
Impact Strength: V-Notched Charpy, J 31
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 700
620
Tensile Strength: Yield (Proof), MPa 470
250

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 510
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 40
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
4.4
Embodied Energy, MJ/kg 24
60
Embodied Water, L/kg 70
160

Common Calculations

PREN (Pitting Resistance) 6.8
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
200
Resilience: Unit (Modulus of Resilience), kJ/m3 580
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0.12 to 0.19
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
17.5 to 19.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 91.2 to 94.9
57.3 to 66.5
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
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 0.8
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0 to 0.050
0