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S38815 Stainless Steel vs. S17400 Stainless Steel

Both S38815 stainless steel and S17400 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
11 to 21
Fatigue Strength, MPa 230
380 to 670
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
75
Shear Strength, MPa 410
570 to 830
Tensile Strength: Ultimate (UTS), MPa 610
910 to 1390
Tensile Strength: Yield (Proof), MPa 290
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Maximum Temperature: Corrosion, °C 400
450
Maximum Temperature: Mechanical, °C 860
850
Melting Completion (Liquidus), °C 1360
1440
Melting Onset (Solidus), °C 1310
1400
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 19
14
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 54
39
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 18
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 220
880 to 4060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
32 to 49
Strength to Weight: Bending, points 21
27 to 35
Thermal Shock Resistance, points 15
30 to 46

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 13 to 15
15 to 17
Copper (Cu), % 0.75 to 1.5
3.0 to 5.0
Iron (Fe), % 56.1 to 67
70.4 to 78.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 5.5 to 6.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030