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ASTM A372 Grade K Steel vs. N08535 Stainless Steel

Both ASTM A372 grade K steel and N08535 stainless steel are iron alloys. They have 42% 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 ASTM A372 grade K steel and the bottom bar is N08535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
46
Fatigue Strength, MPa 440
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 490
400
Tensile Strength: Ultimate (UTS), MPa 780
570
Tensile Strength: Yield (Proof), MPa 620
240

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
13
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
36
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.8
6.3
Embodied Energy, MJ/kg 24
87
Embodied Water, L/kg 57
230

Common Calculations

PREN (Pitting Resistance) 2.7
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1010
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
20
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 13
3.3
Thermal Shock Resistance, points 23
13

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.030
Chromium (Cr), % 1.0 to 1.8
24 to 27
Copper (Cu), % 0
0 to 1.5
Iron (Fe), % 93.4 to 96.6
29.4 to 44.5
Manganese (Mn), % 0.1 to 0.4
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.6
2.5 to 4.0
Nickel (Ni), % 2.0 to 3.3
29 to 36.5
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.030