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S17700 Stainless Steel vs. S38815 Stainless Steel

Both S17700 stainless steel and S38815 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S17700 stainless steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 430
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 1.0 to 23
34
Fatigue Strength, MPa 290 to 560
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Shear Strength, MPa 740 to 940
410
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
610
Tensile Strength: Yield (Proof), MPa 430 to 1210
290

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Maximum Temperature: Corrosion, °C 410
400
Maximum Temperature: Mechanical, °C 890
860
Melting Completion (Liquidus), °C 1440
1360
Melting Onset (Solidus), °C 1400
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Base Metal Price, % relative 13
19
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 2.8
3.8
Embodied Energy, MJ/kg 40
54
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 17
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
170
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 42 to 59
22
Strength to Weight: Bending, points 32 to 40
21
Thermal Shock Resistance, points 39 to 54
15

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0 to 0.3
Carbon (C), % 0 to 0.090
0 to 0.030
Chromium (Cr), % 16 to 18
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Iron (Fe), % 70.5 to 76.8
56.1 to 67
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 6.5 to 7.8
13 to 17
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
5.5 to 6.5
Sulfur (S), % 0 to 0.030
0 to 0.020