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ASTM A387 Grade 9 Steel vs. EN 1.4541 Stainless Steel

Both ASTM A387 grade 9 steel and EN 1.4541 stainless steel are iron alloys. They have 80% 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 ASTM A387 grade 9 steel and the bottom bar is EN 1.4541 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
14 to 40
Fatigue Strength, MPa 160 to 240
190 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 310 to 380
410 to 550
Tensile Strength: Ultimate (UTS), MPa 500 to 600
600 to 900
Tensile Strength: Yield (Proof), MPa 230 to 350
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
3.2
Embodied Energy, MJ/kg 28
46
Embodied Water, L/kg 87
140

Common Calculations

PREN (Pitting Resistance) 12
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
120 to 830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 21
21 to 32
Strength to Weight: Bending, points 18 to 20
20 to 27
Thermal Diffusivity, mm2/s 6.9
4.0
Thermal Shock Resistance, points 14 to 17
14 to 20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 8.0 to 10
17 to 19
Iron (Fe), % 87.1 to 90.8
65.2 to 74
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0 to 0.7
Vanadium (V), % 0 to 0.040
0

Comparable Variants