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EN 1.4865 Stainless Steel vs. ASTM A372 Grade M Steel

Both EN 1.4865 stainless steel and ASTM A372 grade M steel are iron alloys. They have 45% 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 1.4865 stainless steel and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 6.8
18 to 21
Fatigue Strength, MPa 120
450 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 470
810 to 910
Tensile Strength: Yield (Proof), MPa 250
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1020
450
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
46
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 33
5.0
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.8
2.0
Embodied Energy, MJ/kg 81
27
Embodied Water, L/kg 200
61

Common Calculations

PREN (Pitting Resistance) 20
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
160
Resilience: Unit (Modulus of Resilience), kJ/m3 160
1140 to 1580
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16
29 to 32
Strength to Weight: Bending, points 17
24 to 27
Thermal Diffusivity, mm2/s 3.1
12
Thermal Shock Resistance, points 11
24 to 27

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.23
Chromium (Cr), % 18 to 21
1.5 to 2.0
Iron (Fe), % 34.4 to 44.7
92.5 to 95.1
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Molybdenum (Mo), % 0 to 0.5
0.4 to 0.6
Nickel (Ni), % 36 to 39
2.8 to 3.9
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 1.0 to 2.5
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0
0 to 0.080