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EN 1.4951 Stainless Steel vs. ASTM A369 Grade FP1

Both EN 1.4951 stainless steel and ASTM A369 grade FP1 are iron alloys. They have 54% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4951 stainless steel and the bottom bar is ASTM A369 grade FP1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 38
20
Fatigue Strength, MPa 190
160
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 430
270
Tensile Strength: Ultimate (UTS), MPa 630
430
Tensile Strength: Yield (Proof), MPa 220
240

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
50
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.3
1.5
Embodied Energy, MJ/kg 61
20
Embodied Water, L/kg 190
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
75
Resilience: Unit (Modulus of Resilience), kJ/m3 130
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 14
13

Alloy Composition

Carbon (C), % 0.040 to 0.080
0.1 to 0.2
Chromium (Cr), % 24 to 26
0
Iron (Fe), % 49.1 to 57
97.8 to 99.06
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 0
0.44 to 0.65
Nickel (Ni), % 19 to 22
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.7
0.1 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025