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S31655 Stainless Steel vs. ASTM A182 Grade F5a

Both S31655 stainless steel and ASTM A182 grade F5a are iron alloys. They have 74% 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 S31655 stainless steel and the bottom bar is ASTM A182 grade F5a.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
310
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
25
Fatigue Strength, MPa 300
380
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 490
450
Tensile Strength: Ultimate (UTS), MPa 710
710
Tensile Strength: Yield (Proof), MPa 350
520

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 1010
510
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 17
4.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.8
Embodied Energy, MJ/kg 46
24
Embodied Water, L/kg 160
69

Common Calculations

PREN (Pitting Resistance) 27
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
160
Resilience: Unit (Modulus of Resilience), kJ/m3 310
700
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
25
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 16
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.25
Chromium (Cr), % 19.5 to 21.5
4.0 to 6.0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 63.2 to 71.9
91.4 to 95.6
Manganese (Mn), % 0 to 2.0
0 to 0.6
Molybdenum (Mo), % 0.5 to 1.5
0.44 to 0.65
Nickel (Ni), % 8.0 to 9.5
0 to 0.5
Nitrogen (N), % 0.14 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030