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EN 1.4568 Stainless Steel vs. ASTM A387 Grade 2 Steel

Both EN 1.4568 stainless steel and ASTM A387 grade 2 steel are iron alloys. They have 75% 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 EN 1.4568 stainless steel and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 2.3 to 21
25
Fatigue Strength, MPa 220 to 670
190 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 520 to 930
300 to 350
Tensile Strength: Ultimate (UTS), MPa 830 to 1620
470 to 550
Tensile Strength: Yield (Proof), MPa 330 to 1490
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
420
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.6
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.8
1.6
Embodied Energy, MJ/kg 40
20
Embodied Water, L/kg 140
50

Common Calculations

PREN (Pitting Resistance) 17
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 140
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 5710
180 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30 to 58
16 to 20
Strength to Weight: Bending, points 25 to 40
17 to 19
Thermal Diffusivity, mm2/s 4.3
12
Thermal Shock Resistance, points 23 to 46
14 to 16

Alloy Composition

Aluminum (Al), % 0.7 to 1.5
0
Carbon (C), % 0 to 0.090
0.050 to 0.21
Chromium (Cr), % 16 to 18
0.5 to 0.8
Iron (Fe), % 70.9 to 76.8
97.1 to 98.3
Manganese (Mn), % 0 to 1.0
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 6.5 to 7.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.025