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ACI-ASTM CA15M Steel vs. EN 1.4429 Stainless Steel

Both ACI-ASTM CA15M steel and EN 1.4429 stainless steel are iron alloys. They have 80% 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 1.4429 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 20
40
Fatigue Strength, MPa 330
280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 690
690
Tensile Strength: Yield (Proof), MPa 510
320

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 760
960
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
4.0
Embodied Energy, MJ/kg 29
55
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 15
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
230
Resilience: Unit (Modulus of Resilience), kJ/m3 670
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 7.2
4.0
Thermal Shock Resistance, points 25
15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 11.5 to 14
16.5 to 18.5
Iron (Fe), % 82.1 to 88.4
61.2 to 69.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.15 to 1.0
2.5 to 3.0
Nickel (Ni), % 0 to 1.0
11 to 14
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.65
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015