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S31260 Stainless Steel vs. AISI 348H Stainless Steel

Both S31260 stainless steel and AISI 348H stainless steel are iron alloys. Both are furnished in the annealed condition. They have 89% of their average alloy composition in common. There are 33 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 S31260 stainless steel and the bottom bar is AISI 348H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
40
Fatigue Strength, MPa 370
200
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 500
400
Tensile Strength: Ultimate (UTS), MPa 790
580
Tensile Strength: Yield (Proof), MPa 540
230

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
500
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.9
3.9
Embodied Energy, MJ/kg 53
56
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 39
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
190
Resilience: Unit (Modulus of Resilience), kJ/m3 720
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
21
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 4.3
4.1
Thermal Shock Resistance, points 22
13

Alloy Composition

Carbon (C), % 0 to 0.030
0.040 to 0.1
Chromium (Cr), % 24 to 26
17 to 19
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 59.6 to 67.6
63.8 to 73.6
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.5 to 7.5
9.0 to 13
Niobium (Nb), % 0
0.32 to 1.0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0
0 to 0.1
Tungsten (W), % 0.1 to 0.5
0