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ASTM A387 Grade 12 Steel vs. EN 1.4589 Stainless Steel

Both ASTM A387 grade 12 steel and EN 1.4589 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 31 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 1.4589 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
17
Fatigue Strength, MPa 190 to 230
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 300 to 330
400
Tensile Strength: Ultimate (UTS), MPa 470 to 520
650
Tensile Strength: Yield (Proof), MPa 260 to 310
440

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 430
810
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
25
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
9.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.4
Embodied Energy, MJ/kg 21
34
Embodied Water, L/kg 51
110

Common Calculations

PREN (Pitting Resistance) 2.7
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
96
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 250
490
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 18
23
Strength to Weight: Bending, points 17 to 18
22
Thermal Diffusivity, mm2/s 12
6.7
Thermal Shock Resistance, points 14 to 15
23

Alloy Composition

Carbon (C), % 0.050 to 0.17
0 to 0.080
Chromium (Cr), % 0.8 to 1.2
13.5 to 15.5
Iron (Fe), % 97 to 98.2
78.2 to 85
Manganese (Mn), % 0.4 to 0.65
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.6
0.2 to 1.2
Nickel (Ni), % 0
1.0 to 2.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0.3 to 0.5