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SAE-AISI 9255 Steel vs. EN 1.4537 Stainless Steel

Both SAE-AISI 9255 steel and EN 1.4537 stainless steel are iron alloys. They have 42% 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 SAE-AISI 9255 steel and the bottom bar is EN 1.4537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 21
42
Fatigue Strength, MPa 270
290
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
80
Shear Strength, MPa 430
480
Tensile Strength: Ultimate (UTS), MPa 680
700
Tensile Strength: Yield (Proof), MPa 390
330

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
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 8.6
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
34
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 1.5
6.1
Embodied Energy, MJ/kg 20
84
Embodied Water, L/kg 46
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
240
Resilience: Unit (Modulus of Resilience), kJ/m3 400
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 13
3.7
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.020
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 96.2 to 97
36.3 to 46.1
Manganese (Mn), % 0.7 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
4.7 to 5.7
Nickel (Ni), % 0
24 to 27
Nitrogen (N), % 0
0.17 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 1.8 to 2.2
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.010