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ASTM A372 Grade M Steel vs. EN 1.4105 Stainless Steel

Both ASTM A372 grade M steel and EN 1.4105 stainless steel are iron alloys. They have 83% 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 ASTM A372 grade M steel and the bottom bar is EN 1.4105 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
23
Fatigue Strength, MPa 450 to 520
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 510 to 570
340
Tensile Strength: Ultimate (UTS), MPa 810 to 910
530
Tensile Strength: Yield (Proof), MPa 660 to 770
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 450
870
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
9.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 27
31
Embodied Water, L/kg 61
120

Common Calculations

PREN (Pitting Resistance) 3.4
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1580
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 32
19
Strength to Weight: Bending, points 24 to 27
19
Thermal Diffusivity, mm2/s 12
6.7
Thermal Shock Resistance, points 24 to 27
19

Alloy Composition

Carbon (C), % 0 to 0.23
0 to 0.080
Chromium (Cr), % 1.5 to 2.0
16 to 18
Iron (Fe), % 92.5 to 95.1
77.9 to 83.7
Manganese (Mn), % 0.2 to 0.4
0 to 1.5
Molybdenum (Mo), % 0.4 to 0.6
0.2 to 0.6
Nickel (Ni), % 2.8 to 3.9
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.5
Sulfur (S), % 0 to 0.010
0.15 to 0.35
Vanadium (V), % 0 to 0.080
0