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EN 1.3955 Stainless Steel vs. ASTM A369 Grade FP2

Both EN 1.3955 stainless steel and ASTM A369 grade FP2 are iron alloys. They have 71% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.3955 stainless steel and the bottom bar is ASTM A369 grade FP2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 150
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 520
430
Tensile Strength: Yield (Proof), MPa 220
240

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
420
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
49
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 16
2.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.2
1.6
Embodied Energy, MJ/kg 45
20
Embodied Water, L/kg 140
50

Common Calculations

PREN (Pitting Resistance) 19
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
75
Resilience: Unit (Modulus of Resilience), kJ/m3 130
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
15
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 4.1
13
Thermal Shock Resistance, points 15
13

Alloy Composition

Carbon (C), % 0 to 0.15
0.1 to 0.2
Chromium (Cr), % 16.5 to 18.5
0.5 to 0.81
Iron (Fe), % 65.5 to 73.5
97.4 to 98.6
Manganese (Mn), % 0 to 2.0
0.3 to 0.61
Molybdenum (Mo), % 0 to 0.75
0.44 to 0.65
Nickel (Ni), % 10 to 12
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025