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ASTM A387 Grade 2 Steel vs. EN 1.4905 Stainless Steel

Both ASTM A387 grade 2 steel and EN 1.4905 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 2 steel and the bottom bar is EN 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
19
Fatigue Strength, MPa 190 to 250
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 300 to 350
460
Tensile Strength: Ultimate (UTS), MPa 470 to 550
740
Tensile Strength: Yield (Proof), MPa 260 to 350
510

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 420
660
Melting Completion (Liquidus), °C 1470
1480
Melting Onset (Solidus), °C 1420
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
26
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
9.5
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 20
40
Embodied Water, L/kg 50
90

Common Calculations

PREN (Pitting Resistance) 2.4
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
680
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
26
Strength to Weight: Bending, points 17 to 19
23
Thermal Diffusivity, mm2/s 12
7.0
Thermal Shock Resistance, points 14 to 16
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0.050 to 0.21
0.090 to 0.13
Chromium (Cr), % 0.5 to 0.8
8.5 to 9.5
Iron (Fe), % 97.1 to 98.3
86.2 to 88.8
Manganese (Mn), % 0.55 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0.45 to 0.6
0.9 to 1.1
Nickel (Ni), % 0
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.050 to 0.090
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0.15 to 0.4
0.1 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25