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EN 1.4306 Stainless Steel vs. ASTM A369 Grade FPA

Both EN 1.4306 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4306 stainless steel and the bottom bar is ASTM A369 grade FPA.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
110
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
27
Fatigue Strength, MPa 190 to 330
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400 to 550
240
Tensile Strength: Ultimate (UTS), MPa 580 to 900
380
Tensile Strength: Yield (Proof), MPa 210 to 570
240

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 960
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
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 16
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.4
Embodied Energy, MJ/kg 45
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
89
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 820
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
13
Strength to Weight: Bending, points 20 to 27
15
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 13 to 20
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.25
Chromium (Cr), % 18 to 20
0
Iron (Fe), % 64.8 to 72
98.3 to 99.63
Manganese (Mn), % 0 to 2.0
0.27 to 0.93
Nickel (Ni), % 10 to 12
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.035