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ASTM A387 Grade 12 Steel vs. EN 1.4529 Stainless Steel

Both ASTM A387 grade 12 steel and EN 1.4529 stainless steel are iron alloys. They have 49% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 12 steel and the bottom bar is EN 1.4529 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
43
Fatigue Strength, MPa 190 to 230
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 300 to 330
520
Tensile Strength: Ultimate (UTS), MPa 470 to 520
750
Tensile Strength: Yield (Proof), MPa 260 to 310
340

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 430
1100
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 44
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.6
6.2
Embodied Energy, MJ/kg 21
84
Embodied Water, L/kg 51
200

Common Calculations

PREN (Pitting Resistance) 2.7
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
260
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 250
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 18
26
Strength to Weight: Bending, points 17 to 18
23
Thermal Diffusivity, mm2/s 12
3.2
Thermal Shock Resistance, points 14 to 15
17

Alloy Composition

Carbon (C), % 0.050 to 0.17
0 to 0.020
Chromium (Cr), % 0.8 to 1.2
19 to 21
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 97 to 98.2
42.7 to 50.4
Manganese (Mn), % 0.4 to 0.65
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.6
6.0 to 7.0
Nickel (Ni), % 0
24 to 26
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010