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EN 1.4547 Stainless Steel vs. ASTM A356 Grade 8

Both EN 1.4547 stainless steel and ASTM A356 grade 8 are iron alloys. They have 57% of their average alloy composition in common. There are 31 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 1.4547 stainless steel and the bottom bar is ASTM A356 grade 8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
21
Fatigue Strength, MPa 290
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 750
630
Tensile Strength: Yield (Proof), MPa 340
390

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1090
440
Melting Completion (Liquidus), °C 1470
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 14
38
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 28
3.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.0
Embodied Energy, MJ/kg 75
26
Embodied Water, L/kg 190
55

Common Calculations

PREN (Pitting Resistance) 45
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
110
Resilience: Unit (Modulus of Resilience), kJ/m3 290
390
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 3.8
10
Thermal Shock Resistance, points 16
18

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.2
Chromium (Cr), % 19.5 to 20.5
1.0 to 1.5
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51 to 56.3
95.4 to 97.4
Manganese (Mn), % 0 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 6.0 to 7.0
0.9 to 1.2
Nickel (Ni), % 17.5 to 18.5
0
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.7
0.2 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15