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ASTM A369 Grade FP12 vs. S24000 Stainless Steel

Both ASTM A369 grade FP12 and S24000 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP12 and the bottom bar is S24000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
39
Fatigue Strength, MPa 170
370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 300
530
Tensile Strength: Ultimate (UTS), MPa 470
770
Tensile Strength: Yield (Proof), MPa 250
430

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 430
910
Melting Completion (Liquidus), °C 1470
1390
Melting Onset (Solidus), °C 1430
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
12
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.6
2.7
Embodied Energy, MJ/kg 21
39
Embodied Water, L/kg 52
150

Common Calculations

PREN (Pitting Resistance) 2.8
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
260
Resilience: Unit (Modulus of Resilience), kJ/m3 160
470
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
28
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.080
Chromium (Cr), % 0.8 to 1.3
17 to 19
Iron (Fe), % 96.8 to 98.4
61.5 to 69
Manganese (Mn), % 0.3 to 0.61
11.5 to 14.5
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0
2.3 to 3.7
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.060
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030