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Annealed SAE-AISI A9 vs. Annealed S46910 Stainless Steel

Both annealed SAE-AISI A9 and annealed S46910 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 80% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is annealed SAE-AISI A9 and the bottom bar is annealed S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
11
Fatigue Strength, MPa 250
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 480
410
Tensile Strength: Ultimate (UTS), MPa 770
680
Tensile Strength: Yield (Proof), MPa 360
450

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
18
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.7
4.1
Embodied Energy, MJ/kg 70
55
Embodied Water, L/kg 82
140

Common Calculations

PREN (Pitting Resistance) 10
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
69
Resilience: Unit (Modulus of Resilience), kJ/m3 350
510
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
24
Strength to Weight: Bending, points 24
22
Thermal Shock Resistance, points 25
23

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.5
Carbon (C), % 0.45 to 0.55
0 to 0.030
Chromium (Cr), % 4.8 to 5.5
11 to 13
Copper (Cu), % 0 to 0.25
1.5 to 3.5
Iron (Fe), % 87 to 90.5
65 to 76
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 1.3 to 1.8
3.0 to 5.0
Nickel (Ni), % 1.3 to 1.8
8.0 to 10
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 1.0 to 1.2
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.5 to 1.2
Vanadium (V), % 0.8 to 1.4
0