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EN 1.4951 Stainless Steel vs. ASTM A182 Grade FR

Both EN 1.4951 stainless steel and ASTM A182 grade FR are iron alloys. They have 56% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 A182 grade FR.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 38
28
Fatigue Strength, MPa 190
270
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
72
Shear Strength, MPa 430
320
Tensile Strength: Ultimate (UTS), MPa 630
490
Tensile Strength: Yield (Proof), MPa 220
360

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1410
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
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
3.3
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.3
1.6
Embodied Energy, MJ/kg 61
21
Embodied Water, L/kg 190
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 130
340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.2
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 49.1 to 57
95.2 to 97.3
Manganese (Mn), % 0 to 2.0
0.4 to 1.1
Nickel (Ni), % 19 to 22
1.6 to 2.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.7
0
Sulfur (S), % 0 to 0.015
0 to 0.050