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EN 1.4109 Stainless Steel vs. ASTM A356 Grade 2

Both EN 1.4109 stainless steel and ASTM A356 grade 2 are iron alloys. They have 84% 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 1.4109 stainless steel and the bottom bar is ASTM A356 grade 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19
25
Fatigue Strength, MPa 270
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 770
510
Tensile Strength: Yield (Proof), MPa 420
270

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
410
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
51
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
2.4
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
1.5
Embodied Energy, MJ/kg 30
20
Embodied Water, L/kg 110
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 8.1
14
Thermal Shock Resistance, points 28
15

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.25
Chromium (Cr), % 14 to 16
0
Iron (Fe), % 80.7 to 85
97.7 to 99.55
Manganese (Mn), % 0 to 1.0
0 to 0.7
Molybdenum (Mo), % 0.4 to 0.8
0.45 to 0.65
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.7
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030