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ASTM A182 Grade F5a vs. S43940 Stainless Steel

Both ASTM A182 grade F5a and S43940 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 32 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 ASTM A182 grade F5a and the bottom bar is S43940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
21
Fatigue Strength, MPa 380
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 450
310
Tensile Strength: Ultimate (UTS), MPa 710
490
Tensile Strength: Yield (Proof), MPa 520
280

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 510
890
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.8
2.6
Embodied Energy, MJ/kg 24
38
Embodied Water, L/kg 69
120

Common Calculations

PREN (Pitting Resistance) 6.8
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
86
Resilience: Unit (Modulus of Resilience), kJ/m3 700
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 11
6.8
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
17.5 to 18.5
Iron (Fe), % 91.4 to 95.6
78.2 to 82.1
Manganese (Mn), % 0 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0
0.3 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.1 to 0.6