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ASTM A387 Grade 5 Steel vs. EN 1.4409 Stainless Steel

Both ASTM A387 grade 5 steel and EN 1.4409 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 5 steel and the bottom bar is EN 1.4409 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
34
Fatigue Strength, MPa 160 to 240
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Tensile Strength: Ultimate (UTS), MPa 500 to 600
490
Tensile Strength: Yield (Proof), MPa 230 to 350
220

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 510
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.7
Embodied Energy, MJ/kg 23
52
Embodied Water, L/kg 69
160

Common Calculations

PREN (Pitting Resistance) 6.8
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 21
17
Strength to Weight: Bending, points 18 to 20
18
Thermal Diffusivity, mm2/s 11
4.1
Thermal Shock Resistance, points 14 to 17
11

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
18 to 20
Iron (Fe), % 92.1 to 95.3
61.7 to 71
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
2.0 to 2.5
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.025