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EN 1.4872 Stainless Steel vs. ASTM A369 Grade FP21

Both EN 1.4872 stainless steel and ASTM A369 grade FP21 are iron alloys. They have 62% 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 EN 1.4872 stainless steel and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
20
Fatigue Strength, MPa 410
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
74
Shear Strength, MPa 620
300
Tensile Strength: Ultimate (UTS), MPa 950
470
Tensile Strength: Yield (Proof), MPa 560
240

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1150
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 2.3
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 17
4.0
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.8
Embodied Energy, MJ/kg 47
23
Embodied Water, L/kg 180
61

Common Calculations

PREN (Pitting Resistance) 30
6.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
80
Resilience: Unit (Modulus of Resilience), kJ/m3 780
150
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 35
17
Strength to Weight: Bending, points 28
17
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 21
14

Alloy Composition

Carbon (C), % 0.2 to 0.3
0.050 to 0.15
Chromium (Cr), % 24 to 26
2.7 to 3.4
Iron (Fe), % 54.2 to 61.6
94.3 to 96.2
Manganese (Mn), % 8.0 to 10
0.3 to 0.6
Molybdenum (Mo), % 0
0.8 to 1.1
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025