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SAE-AISI 1552 Steel vs. EN 1.4951 Stainless Steel

Both SAE-AISI 1552 steel and EN 1.4951 stainless steel are iron alloys. They have 54% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1552 steel and the bottom bar is EN 1.4951 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
38
Fatigue Strength, MPa 290 to 400
190
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
79
Shear Strength, MPa 460 to 510
430
Tensile Strength: Ultimate (UTS), MPa 760 to 840
630
Tensile Strength: Yield (Proof), MPa 460 to 650
220

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.3
Embodied Energy, MJ/kg 19
61
Embodied Water, L/kg 47
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 98
190
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1130
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 30
22
Strength to Weight: Bending, points 24 to 25
21
Thermal Diffusivity, mm2/s 14
3.9
Thermal Shock Resistance, points 26 to 29
14

Alloy Composition

Carbon (C), % 0.47 to 0.55
0.040 to 0.080
Chromium (Cr), % 0
24 to 26
Iron (Fe), % 97.9 to 98.3
49.1 to 57
Manganese (Mn), % 1.2 to 1.5
0 to 2.0
Nickel (Ni), % 0
19 to 22
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0 to 0.050
0 to 0.015