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ASTM A369 Grade FP22 vs. EN 1.4550 Stainless Steel

Both ASTM A369 grade FP22 and EN 1.4550 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 32 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 ASTM A369 grade FP22 and the bottom bar is EN 1.4550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
42
Fatigue Strength, MPa 160
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 300
430
Tensile Strength: Ultimate (UTS), MPa 470
620
Tensile Strength: Yield (Proof), MPa 240
230

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 460
940
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.6
Embodied Energy, MJ/kg 23
51
Embodied Water, L/kg 58
140

Common Calculations

PREN (Pitting Resistance) 5.5
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
210
Resilience: Unit (Modulus of Resilience), kJ/m3 150
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.080
Chromium (Cr), % 1.9 to 2.6
17 to 19
Iron (Fe), % 95 to 96.9
64.9 to 74
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.87 to 1.1
0
Nickel (Ni), % 0
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015