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ACI-ASTM CA15M Steel vs. EN 1.4311 Stainless Steel

Both ACI-ASTM CA15M steel and EN 1.4311 stainless steel are iron alloys. They have 84% 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 1.4311 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 20
43
Fatigue Strength, MPa 330
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 690
650
Tensile Strength: Yield (Proof), MPa 510
310

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 760
950
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
3.1
Embodied Energy, MJ/kg 29
43
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 15
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
230
Resilience: Unit (Modulus of Resilience), kJ/m3 670
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
23
Strength to Weight: Bending, points 22
21
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
17.5 to 19.5
Iron (Fe), % 82.1 to 88.4
65.7 to 73.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.15 to 1.0
0
Nickel (Ni), % 0 to 1.0
8.5 to 11.5
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