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ASTM A356 Grade 9 vs. EN 1.4003 Stainless Steel

Both ASTM A356 grade 9 and EN 1.4003 stainless steel are iron alloys. They have 89% 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 ASTM A356 grade 9 and the bottom bar is EN 1.4003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
22
Fatigue Strength, MPa 310
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 670
540
Tensile Strength: Yield (Proof), MPa 460
320

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 440
720
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.9
Embodied Energy, MJ/kg 33
27
Embodied Water, L/kg 56
97

Common Calculations

PREN (Pitting Resistance) 4.7
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
100
Resilience: Unit (Modulus of Resilience), kJ/m3 570
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
19
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 11
6.7
Thermal Shock Resistance, points 19
19

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 1.0 to 1.5
10.5 to 12.5
Iron (Fe), % 95.2 to 97.2
83.9 to 89.2
Manganese (Mn), % 0.5 to 0.9
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.2
0
Nickel (Ni), % 0
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.2 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0.2 to 0.35
0