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AISI 348H Stainless Steel vs. S45000 Stainless Steel

Both AISI 348H stainless steel and S45000 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 348H stainless steel and the bottom bar is S45000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
280 to 410
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
6.8 to 14
Fatigue Strength, MPa 200
330 to 650
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
22 to 50
Shear Modulus, GPa 77
76
Shear Strength, MPa 400
590 to 830
Tensile Strength: Ultimate (UTS), MPa 580
980 to 1410
Tensile Strength: Yield (Proof), MPa 230
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 500
400
Maximum Temperature: Mechanical, °C 940
840
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.9
2.8
Embodied Energy, MJ/kg 56
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 18
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
94 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 140
850 to 4400
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
35 to 50
Strength to Weight: Bending, points 20
28 to 36
Thermal Diffusivity, mm2/s 4.1
4.5
Thermal Shock Resistance, points 13
33 to 47

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.050
Chromium (Cr), % 17 to 19
14 to 16
Cobalt (Co), % 0 to 0.2
0
Copper (Cu), % 0
1.3 to 1.8
Iron (Fe), % 63.8 to 73.6
72.1 to 79.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 9.0 to 13
5.0 to 7.0
Niobium (Nb), % 0.32 to 1.0
0
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
Tantalum (Ta), % 0 to 0.1
0