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EN 1.4374 Stainless Steel vs. ASTM A369 Grade FP22

Both EN 1.4374 stainless steel and ASTM A369 grade FP22 are iron alloys. They have 69% 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 EN 1.4374 stainless steel and the bottom bar is ASTM A369 grade FP22.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
20
Fatigue Strength, MPa 340
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 550
300
Tensile Strength: Ultimate (UTS), MPa 800
470
Tensile Strength: Yield (Proof), MPa 400
240

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 920
460
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
3.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.9
1.7
Embodied Energy, MJ/kg 42
23
Embodied Water, L/kg 150
58

Common Calculations

PREN (Pitting Resistance) 23
5.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
80
Resilience: Unit (Modulus of Resilience), kJ/m3 400
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
17
Strength to Weight: Bending, points 25
17
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0.050 to 0.1
0.050 to 0.15
Chromium (Cr), % 17.5 to 18.5
1.9 to 2.6
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 63.5 to 67.9
95 to 96.9
Manganese (Mn), % 9.0 to 10
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.87 to 1.1
Nickel (Ni), % 5.0 to 6.0
0
Nitrogen (N), % 0.25 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025