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ASTM A372 Grade K Steel vs. N08332 Stainless Steel

Both ASTM A372 grade K steel and N08332 stainless steel are iron alloys. They have 48% of their average alloy composition in common. There are 32 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 ASTM A372 grade K steel and the bottom bar is N08332 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
34
Fatigue Strength, MPa 440
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 490
350
Tensile Strength: Ultimate (UTS), MPa 780
520
Tensile Strength: Yield (Proof), MPa 620
210

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1050
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 48
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
32
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.8
5.4
Embodied Energy, MJ/kg 24
77
Embodied Water, L/kg 57
190

Common Calculations

PREN (Pitting Resistance) 2.7
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1010
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 13
3.1
Thermal Shock Resistance, points 23
12

Alloy Composition

Carbon (C), % 0 to 0.18
0.050 to 0.1
Chromium (Cr), % 1.0 to 1.8
17 to 20
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 93.4 to 96.6
38.3 to 48.2
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.6
0
Nickel (Ni), % 2.0 to 3.3
34 to 37
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0.75 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Tin (Sn), % 0
0 to 0.025