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ASTM A387 Grade 9 Steel vs. EN 1.4606 Stainless Steel

Both ASTM A387 grade 9 steel and EN 1.4606 stainless steel are iron alloys. They have 65% 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 1.4606 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
23 to 39
Fatigue Strength, MPa 160 to 240
240 to 420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
75
Shear Strength, MPa 310 to 380
410 to 640
Tensile Strength: Ultimate (UTS), MPa 500 to 600
600 to 1020
Tensile Strength: Yield (Proof), MPa 230 to 350
280 to 630

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 600
910
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
14
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
26
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
6.0
Embodied Energy, MJ/kg 28
87
Embodied Water, L/kg 87
170

Common Calculations

PREN (Pitting Resistance) 12
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
200 to 1010
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 21
21 to 36
Strength to Weight: Bending, points 18 to 20
20 to 28
Thermal Diffusivity, mm2/s 6.9
3.7
Thermal Shock Resistance, points 14 to 17
21 to 35

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 8.0 to 10
13 to 16
Iron (Fe), % 87.1 to 90.8
49.2 to 59
Manganese (Mn), % 0.3 to 0.6
1.0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
1.0 to 1.5
Nickel (Ni), % 0
24 to 27
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Vanadium (V), % 0 to 0.040
0.1 to 0.5