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ASTM A369 Grade FP22 vs. EN 1.4347 Stainless Steel

Both ASTM A369 grade FP22 and EN 1.4347 stainless steel are iron alloys. They have 69% 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 ASTM A369 grade FP22 and the bottom bar is EN 1.4347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
23
Fatigue Strength, MPa 160
320
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 470
660
Tensile Strength: Yield (Proof), MPa 240
480

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 460
1100
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
16
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.1
Embodied Energy, MJ/kg 23
44
Embodied Water, L/kg 58
170

Common Calculations

PREN (Pitting Resistance) 5.5
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
140
Resilience: Unit (Modulus of Resilience), kJ/m3 150
570
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.050
Chromium (Cr), % 1.9 to 2.6
25 to 27
Iron (Fe), % 95 to 96.9
62.2 to 69.4
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.87 to 1.1
0
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.020