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ASTM A387 Grade 9 Steel vs. EN 1.4826 Stainless Steel

Both ASTM A387 grade 9 steel and EN 1.4826 stainless 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 ASTM A387 grade 9 steel and the bottom bar is EN 1.4826 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
9.1
Fatigue Strength, MPa 160 to 240
140
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 500 to 600
500
Tensile Strength: Yield (Proof), MPa 230 to 350
260

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Mechanical, °C 600
950
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 26
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.1
3.3
Embodied Energy, MJ/kg 28
47
Embodied Water, L/kg 87
160

Common Calculations

PREN (Pitting Resistance) 12
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
39
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 21
18
Strength to Weight: Bending, points 18 to 20
18
Thermal Diffusivity, mm2/s 6.9
3.7
Thermal Shock Resistance, points 14 to 17
11

Alloy Composition

Carbon (C), % 0 to 0.15
0.3 to 0.5
Chromium (Cr), % 8.0 to 10
21 to 23
Iron (Fe), % 87.1 to 90.8
60.4 to 68.7
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.5
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0 to 0.040
0