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ASTM A369 Grade FP12 vs. EN 1.4901 Stainless Steel

Both ASTM A369 grade FP12 and EN 1.4901 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 31 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 ASTM A369 grade FP12 and the bottom bar is EN 1.4901 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
19
Fatigue Strength, MPa 170
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 300
460
Tensile Strength: Ultimate (UTS), MPa 470
740
Tensile Strength: Yield (Proof), MPa 250
490

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
650
Melting Completion (Liquidus), °C 1470
1490
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
26
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 21
40
Embodied Water, L/kg 52
89

Common Calculations

PREN (Pitting Resistance) 2.8
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
620
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 12
6.9
Thermal Shock Resistance, points 14
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0.050 to 0.15
0.070 to 0.13
Chromium (Cr), % 0.8 to 1.3
8.5 to 9.5
Iron (Fe), % 96.8 to 98.4
85.8 to 89.1
Manganese (Mn), % 0.3 to 0.61
0.3 to 0.6
Molybdenum (Mo), % 0.44 to 0.65
0.3 to 0.6
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.040 to 0.090
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.0
Vanadium (V), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.010