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SAE-AISI 9255 Steel vs. SAE-AISI 1019 Steel

Both SAE-AISI 9255 steel and SAE-AISI 1019 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9255 steel and the bottom bar is SAE-AISI 1019 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
17 to 29
Fatigue Strength, MPa 270
190 to 290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 430
300 to 320
Tensile Strength: Ultimate (UTS), MPa 680
470 to 520
Tensile Strength: Yield (Proof), MPa 390
250 to 430

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 400
400
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 46
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 46
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
82 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 400
160 to 500
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
17 to 18
Strength to Weight: Bending, points 22
17 to 18
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 21
15 to 16

Alloy Composition

Carbon (C), % 0.51 to 0.59
0.15 to 0.2
Iron (Fe), % 96.2 to 97
98.7 to 99.15
Manganese (Mn), % 0.7 to 1.0
0.7 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 1.8 to 2.2
0
Sulfur (S), % 0 to 0.040
0 to 0.050