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EN 1.4005 Stainless Steel vs. ASTM A372 Grade M Steel

Both EN 1.4005 stainless steel and ASTM A372 grade M steel are iron alloys. They have 88% 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 EN 1.4005 stainless steel and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 21
18 to 21
Fatigue Strength, MPa 240 to 290
450 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 390 to 450
510 to 570
Tensile Strength: Ultimate (UTS), MPa 630 to 750
810 to 910
Tensile Strength: Yield (Proof), MPa 370 to 500
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 760
450
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
46
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
2.0
Embodied Energy, MJ/kg 28
27
Embodied Water, L/kg 100
61

Common Calculations

PREN (Pitting Resistance) 14
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 650
1140 to 1580
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23 to 27
29 to 32
Strength to Weight: Bending, points 21 to 24
24 to 27
Thermal Diffusivity, mm2/s 8.1
12
Thermal Shock Resistance, points 23 to 27
24 to 27

Alloy Composition

Carbon (C), % 0.060 to 0.15
0 to 0.23
Chromium (Cr), % 12 to 14
1.5 to 2.0
Iron (Fe), % 82.4 to 87.8
92.5 to 95.1
Manganese (Mn), % 0 to 1.5
0.2 to 0.4
Molybdenum (Mo), % 0 to 0.6
0.4 to 0.6
Nickel (Ni), % 0
2.8 to 3.9
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0.15 to 0.35
0 to 0.010
Vanadium (V), % 0
0 to 0.080