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EN 1.4419 Stainless Steel vs. ASTM A356 Grade 8

Both EN 1.4419 stainless steel and ASTM A356 grade 8 are iron alloys. They have 87% 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 1.4419 stainless steel and the bottom bar is ASTM A356 grade 8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
21
Fatigue Strength, MPa 230 to 680
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 660 to 1590
630
Tensile Strength: Yield (Proof), MPa 370 to 1240
390

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 790
440
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
38
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
3.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
2.0
Embodied Energy, MJ/kg 30
26
Embodied Water, L/kg 110
55

Common Calculations

PREN (Pitting Resistance) 16
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 3920
390
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 57
22
Strength to Weight: Bending, points 22 to 39
21
Thermal Diffusivity, mm2/s 8.1
10
Thermal Shock Resistance, points 23 to 55
18

Alloy Composition

Carbon (C), % 0.36 to 0.42
0 to 0.2
Chromium (Cr), % 13 to 14.5
1.0 to 1.5
Iron (Fe), % 82 to 86
95.4 to 97.4
Manganese (Mn), % 0 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 0.6 to 1.0
0.9 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.2 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15