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EN 1.4474 Stainless Steel vs. ASTM A372 Grade M Steel

Both EN 1.4474 stainless steel and ASTM A372 grade M steel are iron alloys. They have 71% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4474 stainless steel and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
18 to 21
Fatigue Strength, MPa 320
450 to 520
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 670
810 to 910
Tensile Strength: Yield (Proof), MPa 480
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
450
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 17
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
2.0
Embodied Energy, MJ/kg 48
27
Embodied Water, L/kg 170
61

Common Calculations

PREN (Pitting Resistance) 34
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
160
Resilience: Unit (Modulus of Resilience), kJ/m3 560
1140 to 1580
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
29 to 32
Strength to Weight: Bending, points 22
24 to 27
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 18
24 to 27

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.23
Chromium (Cr), % 25 to 27
1.5 to 2.0
Iron (Fe), % 61.2 to 69.1
92.5 to 95.1
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Molybdenum (Mo), % 1.3 to 2.0
0.4 to 0.6
Nickel (Ni), % 4.5 to 6.5
2.8 to 3.9
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0
0 to 0.080