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AISI 310H Stainless Steel vs. AISI 444 Stainless Steel

Both AISI 310H stainless steel and AISI 444 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 310H stainless steel and the bottom bar is AISI 444 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
23
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 82
83
Shear Modulus, GPa 79
78
Shear Strength, MPa 400
300
Tensile Strength: Ultimate (UTS), MPa 580
470
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
580
Maximum Temperature: Mechanical, °C 1100
930
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
23
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.3
3.4
Embodied Energy, MJ/kg 61
47
Embodied Water, L/kg 190
130

Common Calculations

PREN (Pitting Resistance) 25
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
95
Resilience: Unit (Modulus of Resilience), kJ/m3 130
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 3.9
6.2
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.025
Chromium (Cr), % 24 to 26
17.5 to 19.5
Iron (Fe), % 49.1 to 57
73.3 to 80.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 19 to 22
0 to 1.0
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8