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ASTM A369 Grade FP22 vs. EN 1.4710 Stainless Steel

Both ASTM A369 grade FP22 and EN 1.4710 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 93% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
20
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 460
750
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
24
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
5.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
1.8
Embodied Energy, MJ/kg 23
24
Embodied Water, L/kg 58
76

Common Calculations

PREN (Pitting Resistance) 5.5
7.2
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 11
6.5

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.2 to 0.35
Chromium (Cr), % 1.9 to 2.6
6.0 to 8.0
Iron (Fe), % 95 to 96.9
87.4 to 92.3
Manganese (Mn), % 0.3 to 0.6
0.5 to 1.0
Molybdenum (Mo), % 0.87 to 1.1
0 to 0.15
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
1.0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.030