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EN 1.4887 Stainless Steel vs. ASTM A356 Grade 2

Both EN 1.4887 stainless steel and ASTM A356 grade 2 are iron alloys. They have 40% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4887 stainless steel and the bottom bar is ASTM A356 grade 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
25
Fatigue Strength, MPa 280
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 580
510
Tensile Strength: Yield (Proof), MPa 300
270

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1390
1470
Melting Onset (Solidus), °C 1350
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 39
2.4
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.7
1.5
Embodied Energy, MJ/kg 96
20
Embodied Water, L/kg 210
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.25
Chromium (Cr), % 20 to 23
0
Iron (Fe), % 34.2 to 45
97.7 to 99.55
Manganese (Mn), % 0 to 2.0
0 to 0.7
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 33 to 37
0
Niobium (Nb), % 1.0 to 1.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 1.0 to 2.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030