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ACI-ASTM CA15M Steel vs. EN 1.4923 Stainless Steel

Both ACI-ASTM CA15M steel and EN 1.4923 stainless steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA15M steel and the bottom bar is EN 1.4923 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 20
12 to 21
Fatigue Strength, MPa 330
300 to 440
Poisson's Ratio 0.28
0.28
Reduction in Area, % 34
40 to 46
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 690
870 to 980
Tensile Strength: Yield (Proof), MPa 510
470 to 780

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 390
380
Maximum Temperature: Mechanical, °C 760
740
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
24
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
8.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
2.9
Embodied Energy, MJ/kg 29
41
Embodied Water, L/kg 100
100

Common Calculations

PREN (Pitting Resistance) 15
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 670
570 to 1580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
31 to 35
Strength to Weight: Bending, points 22
26 to 28
Thermal Diffusivity, mm2/s 7.2
6.5
Thermal Shock Resistance, points 25
30 to 34

Alloy Composition

Carbon (C), % 0 to 0.15
0.18 to 0.24
Chromium (Cr), % 11.5 to 14
11 to 12.5
Iron (Fe), % 82.1 to 88.4
83.5 to 87.1
Manganese (Mn), % 0 to 1.0
0.4 to 0.9
Molybdenum (Mo), % 0.15 to 1.0
0.8 to 1.2
Nickel (Ni), % 0 to 1.0
0.3 to 0.8
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.65
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015
Vanadium (V), % 0
0.25 to 0.35