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EN 1.4594 Stainless Steel vs. ASTM A372 Grade M Steel

Both EN 1.4594 stainless steel and ASTM A372 grade M steel are iron alloys. They have 82% 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 1.4594 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, % 11 to 17
18 to 21
Fatigue Strength, MPa 490 to 620
450 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 620 to 700
510 to 570
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
810 to 910
Tensile Strength: Yield (Proof), MPa 810 to 1140
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
450
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 15
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.2
2.0
Embodied Energy, MJ/kg 45
27
Embodied Water, L/kg 130
61

Common Calculations

PREN (Pitting Resistance) 19
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
1140 to 1580
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 36 to 41
29 to 32
Strength to Weight: Bending, points 29 to 31
24 to 27
Thermal Diffusivity, mm2/s 4.4
12
Thermal Shock Resistance, points 34 to 39
24 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.23
Chromium (Cr), % 13 to 15
1.5 to 2.0
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 72.6 to 79.5
92.5 to 95.1
Manganese (Mn), % 0 to 1.0
0.2 to 0.4
Molybdenum (Mo), % 1.2 to 2.0
0.4 to 0.6
Nickel (Ni), % 5.0 to 6.0
2.8 to 3.9
Niobium (Nb), % 0.15 to 0.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.7
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.010
Vanadium (V), % 0
0 to 0.080

Comparable Variants