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EN 1.4961 Stainless Steel vs. ACI-ASTM CA15M Steel

Both EN 1.4961 stainless steel and ACI-ASTM CA15M steel are iron alloys. They have 83% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4961 stainless steel and the bottom bar is ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
20
Fatigue Strength, MPa 190
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 610
690
Tensile Strength: Yield (Proof), MPa 220
510

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 510
390
Maximum Temperature: Mechanical, °C 890
760
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 21
7.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.0
2.1
Embodied Energy, MJ/kg 57
29
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 16
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
130
Resilience: Unit (Modulus of Resilience), kJ/m3 120
670
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.3
7.2
Thermal Shock Resistance, points 14
25

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.15
Chromium (Cr), % 15 to 17
11.5 to 14
Iron (Fe), % 65.6 to 72.3
82.1 to 88.4
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
0.15 to 1.0
Nickel (Ni), % 12 to 14
0 to 1.0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 0.65
Sulfur (S), % 0 to 0.015
0 to 0.040