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S44700 Stainless Steel vs. ACI-ASTM CF3 Steel

Both S44700 stainless steel and ACI-ASTM CF3 steel are iron alloys. They have 86% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S44700 stainless steel and the bottom bar is ACI-ASTM CF3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
140
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
60
Fatigue Strength, MPa 300
270
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 82
77
Tensile Strength: Ultimate (UTS), MPa 600
510
Tensile Strength: Yield (Proof), MPa 450
250

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
3.2
Embodied Energy, MJ/kg 49
45
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 42
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
250
Resilience: Unit (Modulus of Resilience), kJ/m3 480
160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
18
Thermal Shock Resistance, points 19
11

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 28 to 30
17 to 21
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 64.9 to 68.5
62.9 to 75
Manganese (Mn), % 0 to 0.3
0 to 1.5
Molybdenum (Mo), % 3.5 to 4.2
0 to 0.5
Nickel (Ni), % 0 to 0.15
8.0 to 12
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.040