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ASTM A369 Grade FP22 vs. EN 1.4749 Stainless Steel

Both ASTM A369 grade FP22 and EN 1.4749 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 74% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, 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 1.4749 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
16
Fatigue Strength, MPa 160
190
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
80
Shear Strength, MPa 300
370
Tensile Strength: Ultimate (UTS), MPa 470
600
Tensile Strength: Yield (Proof), MPa 240
320

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 460
1100
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 39
17
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
13
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.7
2.5
Embodied Energy, MJ/kg 23
36
Embodied Water, L/kg 58
160

Common Calculations

PREN (Pitting Resistance) 5.5
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
80
Resilience: Unit (Modulus of Resilience), kJ/m3 150
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 11
4.6
Thermal Shock Resistance, points 14
22

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.15 to 0.2
Chromium (Cr), % 1.9 to 2.6
26 to 29
Iron (Fe), % 95 to 96.9
68.5 to 73.7
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.87 to 1.1
0
Nitrogen (N), % 0
0.15 to 0.25
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