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ASTM A182 Grade F5a vs. S31727 Stainless Steel

Both ASTM A182 grade F5a and S31727 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F5a and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
40
Fatigue Strength, MPa 380
240
Poisson's Ratio 0.29
0.28
Reduction in Area, % 56
56
Shear Modulus, GPa 74
78
Shear Strength, MPa 450
430
Tensile Strength: Ultimate (UTS), MPa 710
630
Tensile Strength: Yield (Proof), MPa 520
270

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 510
1010
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.8
4.7
Embodied Energy, MJ/kg 24
64
Embodied Water, L/kg 69
180

Common Calculations

PREN (Pitting Resistance) 6.8
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
200
Resilience: Unit (Modulus of Resilience), kJ/m3 700
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 23
20
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
17.5 to 19
Copper (Cu), % 0
2.8 to 4.0
Iron (Fe), % 91.4 to 95.6
53.7 to 61.3
Manganese (Mn), % 0 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
3.8 to 4.5
Nickel (Ni), % 0 to 0.5
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030