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S44700 Stainless Steel vs. SAE-AISI 9254 Steel

Both S44700 stainless steel and SAE-AISI 9254 steel are iron alloys. Both are furnished in the annealed condition. They have 68% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S44700 stainless steel and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
200
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 300
280
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 82
72
Shear Strength, MPa 380
410
Tensile Strength: Ultimate (UTS), MPa 600
660
Tensile Strength: Yield (Proof), MPa 450
410

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
1.5
Embodied Energy, MJ/kg 49
20
Embodied Water, L/kg 180
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 480
450
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 19
20

Alloy Composition

Carbon (C), % 0 to 0.010
0.51 to 0.59
Chromium (Cr), % 28 to 30
0.6 to 0.8
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 64.9 to 68.5
96.1 to 97.1
Manganese (Mn), % 0 to 0.3
0.6 to 0.8
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 0 to 0.15
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.2
1.2 to 1.6
Sulfur (S), % 0 to 0.020
0 to 0.040