MakeItFrom.com
Menu (ESC)

AISI 446 Stainless Steel vs. ASTM A372 Grade M Steel

Both AISI 446 stainless steel and ASTM A372 grade M steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 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 AISI 446 stainless steel and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
18 to 21
Fatigue Strength, MPa 200
450 to 520
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 360
510 to 570
Tensile Strength: Ultimate (UTS), MPa 570
810 to 910
Tensile Strength: Yield (Proof), MPa 300
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1180
450
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.4
2.0
Embodied Energy, MJ/kg 35
27
Embodied Water, L/kg 150
61

Common Calculations

PREN (Pitting Resistance) 27
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 230
1140 to 1580
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 21
29 to 32
Strength to Weight: Bending, points 20
24 to 27
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 19
24 to 27

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.23
Chromium (Cr), % 23 to 27
1.5 to 2.0
Iron (Fe), % 69.2 to 77
92.5 to 95.1
Manganese (Mn), % 0 to 1.5
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 0 to 0.75
2.8 to 3.9
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0
0 to 0.080