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S21603 Stainless Steel vs. ACI-ASTM CF3M Steel

Both S21603 stainless steel and ACI-ASTM CF3M steel are iron alloys. They have a moderately high 91% 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 S21603 stainless steel and the bottom bar is ACI-ASTM CF3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
55
Fatigue Strength, MPa 360
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 690
520
Tensile Strength: Yield (Proof), MPa 390
260

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 990
990
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 17
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.6
3.8
Embodied Energy, MJ/kg 50
53
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 34
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
240
Resilience: Unit (Modulus of Resilience), kJ/m3 380
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 22
18
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17.5 to 22
17 to 21
Iron (Fe), % 57.6 to 67.8
59.9 to 72
Manganese (Mn), % 7.5 to 9.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
2.0 to 3.0
Nickel (Ni), % 5.0 to 7.0
9.0 to 13
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040