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EN 1.4618 Stainless Steel vs. ASTM A369 Grade FPA

Both EN 1.4618 stainless steel and ASTM A369 grade FPA are iron alloys. They have 69% 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 1.4618 stainless steel and the bottom bar is ASTM A369 grade FPA.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
110
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
27
Fatigue Strength, MPa 240 to 250
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 480 to 500
240
Tensile Strength: Ultimate (UTS), MPa 680 to 700
380
Tensile Strength: Yield (Proof), MPa 250 to 260
240

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 900
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
89
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 25
13
Strength to Weight: Bending, points 22 to 23
15
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 15 to 16
12

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.25
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 62.7 to 72.5
98.3 to 99.63
Manganese (Mn), % 5.5 to 9.5
0.27 to 0.93
Nickel (Ni), % 4.5 to 5.5
0
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.035
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.035