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ASTM A387 Grade 9 Steel vs. EN 1.4006 Stainless Steel

Both ASTM A387 grade 9 steel and EN 1.4006 stainless steel are iron alloys. They have a very high 96% 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 1.4006 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
16 to 23
Fatigue Strength, MPa 160 to 240
150 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 310 to 380
370 to 460
Tensile Strength: Ultimate (UTS), MPa 500 to 600
590 to 750
Tensile Strength: Yield (Proof), MPa 230 to 350
230 to 510

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 600
740
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.1
1.9
Embodied Energy, MJ/kg 28
27
Embodied Water, L/kg 87
100

Common Calculations

PREN (Pitting Resistance) 12
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
99 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
140 to 660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 21
21 to 27
Strength to Weight: Bending, points 18 to 20
20 to 24
Thermal Diffusivity, mm2/s 6.9
8.1
Thermal Shock Resistance, points 14 to 17
21 to 26

Alloy Composition

Carbon (C), % 0 to 0.15
0.080 to 0.15
Chromium (Cr), % 8.0 to 10
11.5 to 13.5
Iron (Fe), % 87.1 to 90.8
83.1 to 88.4
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
0 to 0.75
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0 to 0.040
0

Comparable Variants