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EN 1.4521 Stainless Steel vs. ASTM A369 Grade FP12

Both EN 1.4521 stainless steel and ASTM A369 grade FP12 are iron alloys. They have 80% 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 EN 1.4521 stainless steel and the bottom bar is ASTM A369 grade FP12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 230
170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 330
300
Tensile Strength: Ultimate (UTS), MPa 520
470
Tensile Strength: Yield (Proof), MPa 340
250

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
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 23
45
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.8
1.6
Embodied Energy, MJ/kg 39
21
Embodied Water, L/kg 130
52

Common Calculations

PREN (Pitting Resistance) 26
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
81
Resilience: Unit (Modulus of Resilience), kJ/m3 280
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 6.2
12
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.025
0.050 to 0.15
Chromium (Cr), % 17 to 20
0.8 to 1.3
Iron (Fe), % 74.6 to 81.1
96.8 to 98.4
Manganese (Mn), % 0 to 1.0
0.3 to 0.61
Molybdenum (Mo), % 1.8 to 2.5
0.44 to 0.65
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0.15 to 0.8
0