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S82012 Stainless Steel vs. S44700 Stainless Steel

Both S82012 stainless steel and S44700 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 87% 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 S82012 stainless steel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
23
Fatigue Strength, MPa 480
300
Poisson's Ratio 0.28
0.27
Rockwell C Hardness 27
17
Shear Modulus, GPa 78
82
Shear Strength, MPa 550
380
Tensile Strength: Ultimate (UTS), MPa 800
600
Tensile Strength: Yield (Proof), MPa 560
450

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 420
460
Maximum Temperature: Mechanical, °C 950
1100
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 11
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
3.6
Embodied Energy, MJ/kg 35
49
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 24
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
120
Resilience: Unit (Modulus of Resilience), kJ/m3 790
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
21
Strength to Weight: Bending, points 25
20
Thermal Shock Resistance, points 23
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.010
Chromium (Cr), % 19 to 20.5
28 to 30
Copper (Cu), % 0 to 1.0
0 to 0.15
Iron (Fe), % 71.3 to 77.9
64.9 to 68.5
Manganese (Mn), % 2.0 to 4.0
0 to 0.3
Molybdenum (Mo), % 0.1 to 0.6
3.5 to 4.2
Nickel (Ni), % 0.8 to 1.5
0 to 0.15
Nitrogen (N), % 0.16 to 0.26
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.2
Sulfur (S), % 0 to 0.0050
0 to 0.020