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ASTM A369 Grade FP12 vs. S42035 Stainless Steel

Both ASTM A369 grade FP12 and S42035 stainless steel are iron alloys. They have 84% 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 A369 grade FP12 and the bottom bar is S42035 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
18
Fatigue Strength, MPa 170
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 300
390
Tensile Strength: Ultimate (UTS), MPa 470
630
Tensile Strength: Yield (Proof), MPa 250
430

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 430
810
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
27
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
9.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.4
Embodied Energy, MJ/kg 21
34
Embodied Water, L/kg 52
110

Common Calculations

PREN (Pitting Resistance) 2.8
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
100
Resilience: Unit (Modulus of Resilience), kJ/m3 160
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 12
7.2
Thermal Shock Resistance, points 14
22

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.080
Chromium (Cr), % 0.8 to 1.3
13.5 to 15.5
Iron (Fe), % 96.8 to 98.4
78.1 to 85
Manganese (Mn), % 0.3 to 0.61
0 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
0.2 to 1.2
Nickel (Ni), % 0
1.0 to 2.5
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Titanium (Ti), % 0
0.3 to 0.5