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AISI 309H Stainless Steel vs. S35315 Stainless Steel

Both AISI 309H stainless steel and S35315 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 75% 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 309H stainless steel and the bottom bar is S35315 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
46
Fatigue Strength, MPa 200
280
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 82
82
Shear Modulus, GPa 78
78
Shear Strength, MPa 400
520
Tensile Strength: Ultimate (UTS), MPa 580
740
Tensile Strength: Yield (Proof), MPa 230
300

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1420
1370
Melting Onset (Solidus), °C 1370
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.6
5.7
Embodied Energy, MJ/kg 51
81
Embodied Water, L/kg 170
220

Common Calculations

PREN (Pitting Resistance) 23
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
270
Resilience: Unit (Modulus of Resilience), kJ/m3 130
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 4.0
3.1
Thermal Shock Resistance, points 13
17

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.1
Chromium (Cr), % 22 to 24
24 to 26
Iron (Fe), % 58.1 to 66
33.6 to 40.6
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 12 to 15
34 to 36
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
1.2 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030