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ASTM A369 Grade FP12 vs. EN 1.4057 Stainless Steel

Both ASTM A369 grade FP12 and EN 1.4057 stainless steel are iron alloys. They have 82% 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 1.4057 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
11 to 17
Fatigue Strength, MPa 170
320 to 430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 300
520 to 580
Tensile Strength: Ultimate (UTS), MPa 470
840 to 980
Tensile Strength: Yield (Proof), MPa 250
530 to 790

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 430
850
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
9.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.2
Embodied Energy, MJ/kg 21
32
Embodied Water, L/kg 52
120

Common Calculations

PREN (Pitting Resistance) 2.8
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
96 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
700 to 1610
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
30 to 35
Strength to Weight: Bending, points 17
26 to 28
Thermal Diffusivity, mm2/s 12
6.7
Thermal Shock Resistance, points 14
30 to 35

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.12 to 0.22
Chromium (Cr), % 0.8 to 1.3
15 to 17
Iron (Fe), % 96.8 to 98.4
77.7 to 83.4
Manganese (Mn), % 0.3 to 0.61
0 to 1.5
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0
1.5 to 2.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015