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S44800 Stainless Steel vs. ASTM A369 Grade FP12

Both S44800 stainless steel and ASTM A369 grade FP12 are iron alloys. They have 66% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S44800 stainless steel and the bottom bar is ASTM A369 grade FP12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 300
170
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 82
73
Shear Strength, MPa 370
300
Tensile Strength: Ultimate (UTS), MPa 590
470
Tensile Strength: Yield (Proof), MPa 450
250

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
430
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
45
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.8
1.6
Embodied Energy, MJ/kg 52
21
Embodied Water, L/kg 190
52

Common Calculations

PREN (Pitting Resistance) 42
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
81
Resilience: Unit (Modulus of Resilience), kJ/m3 480
160
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.010
0.050 to 0.15
Chromium (Cr), % 28 to 30
0.8 to 1.3
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 62.6 to 66.5
96.8 to 98.4
Manganese (Mn), % 0 to 0.3
0.3 to 0.61
Molybdenum (Mo), % 3.5 to 4.2
0.44 to 0.65
Nickel (Ni), % 2.0 to 2.5
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025