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EN 1.4016 Stainless Steel vs. ASTM A387 Grade 9 Steel

Both EN 1.4016 stainless steel and ASTM A387 grade 9 steel are iron alloys. They have a moderately high 92% 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 1.4016 stainless steel and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 22
20 to 21
Fatigue Strength, MPa 190
160 to 240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 330
310 to 380
Tensile Strength: Ultimate (UTS), MPa 520
500 to 600
Tensile Strength: Yield (Proof), MPa 290
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 870
600
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
26
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
10

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.1
2.1
Embodied Energy, MJ/kg 29
28
Embodied Water, L/kg 120
87

Common Calculations

PREN (Pitting Resistance) 17
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
140 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
18 to 21
Strength to Weight: Bending, points 19
18 to 20
Thermal Diffusivity, mm2/s 6.7
6.9
Thermal Shock Resistance, points 19
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 16 to 18
8.0 to 10
Iron (Fe), % 79.9 to 84
87.1 to 90.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0
0 to 0.040