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EN 1.4848 Stainless Steel vs. ASTM A369 Grade FP21

Both EN 1.4848 stainless steel and ASTM A369 grade FP21 are iron alloys. They have 55% of their average alloy composition in common. There are 31 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 1.4848 stainless steel and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0
20
Fatigue Strength, MPa 130
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Tensile Strength: Ultimate (UTS), MPa 510
470
Tensile Strength: Yield (Proof), MPa 250
240

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Maximum Temperature: Mechanical, °C 1100
470
Melting Completion (Liquidus), °C 1390
1470
Melting Onset (Solidus), °C 1340
1430
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
41
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 25
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.8
Embodied Energy, MJ/kg 63
23
Embodied Water, L/kg 200
61

Common Calculations

PREN (Pitting Resistance) 26
6.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
80
Resilience: Unit (Modulus of Resilience), kJ/m3 150
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
17
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 11
14

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.050 to 0.15
Chromium (Cr), % 24 to 27
2.7 to 3.4
Iron (Fe), % 45.4 to 55.7
94.3 to 96.2
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.8 to 1.1
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 1.0 to 2.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025