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AISI 312 Stainless Steel vs. S45500 Stainless Steel

Both AISI 312 stainless steel and S45500 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 312 stainless steel and the bottom bar is S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
280 to 500
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
3.4 to 11
Fatigue Strength, MPa 370
570 to 890
Poisson's Ratio 0.27
0.28
Reduction in Area, % 56
34 to 45
Rockwell C Hardness 27
32 to 54
Shear Modulus, GPa 80
75
Shear Strength, MPa 510
790 to 1090
Tensile Strength: Ultimate (UTS), MPa 780
1370 to 1850
Tensile Strength: Yield (Proof), MPa 510
1240 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 450
620
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 17
17
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
3.8
Embodied Energy, MJ/kg 48
57
Embodied Water, L/kg 170
120

Common Calculations

PREN (Pitting Resistance) 33
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
45 to 190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
48 to 65
Strength to Weight: Bending, points 24
35 to 42
Thermal Shock Resistance, points 21
48 to 64

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 24 to 26
11 to 12.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 62.2 to 69.2
71.5 to 79.2
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 1.2 to 2.0
0 to 0.5
Nickel (Ni), % 5.5 to 6.5
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0.14 to 0.2
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 0.030
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.8 to 1.4