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EN 1.4864 Stainless Steel vs. ASTM A387 Grade 9 Steel

Both EN 1.4864 stainless steel and ASTM A387 grade 9 steel are iron alloys. They have 56% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4864 stainless steel and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 33
20 to 21
Fatigue Strength, MPa 200
160 to 240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
75
Shear Strength, MPa 430
310 to 380
Tensile Strength: Ultimate (UTS), MPa 650
500 to 600
Tensile Strength: Yield (Proof), MPa 260
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Mechanical, °C 1100
600
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
26
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
10

Otherwise Unclassified Properties

Base Metal Price, % relative 30
6.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.3
2.1
Embodied Energy, MJ/kg 75
28
Embodied Water, L/kg 180
87

Common Calculations

PREN (Pitting Resistance) 17
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 170
140 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
18 to 21
Strength to Weight: Bending, points 21
18 to 20
Thermal Diffusivity, mm2/s 3.3
6.9
Thermal Shock Resistance, points 17
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 15 to 17
8.0 to 10
Iron (Fe), % 41.7 to 51
87.1 to 90.8
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 33 to 37
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0
0 to 0.040