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S21603 Stainless Steel vs. AISI 316 Stainless Steel

Both S21603 stainless steel and AISI 316 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 31 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 S21603 stainless steel and the bottom bar is AISI 316 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
160 to 360
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
8.0 to 55
Fatigue Strength, MPa 360
210 to 430
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
80
Rockwell B Hardness 88
80
Shear Modulus, GPa 79
78
Shear Strength, MPa 490
350 to 690
Tensile Strength: Ultimate (UTS), MPa 690
520 to 1180
Tensile Strength: Yield (Proof), MPa 390
230 to 850

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 990
590
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 17
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.6
3.9
Embodied Energy, MJ/kg 50
53
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 34
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
85 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 380
130 to 1820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
18 to 41
Strength to Weight: Bending, points 22
18 to 31
Thermal Shock Resistance, points 15
11 to 26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 17.5 to 22
16 to 18
Iron (Fe), % 57.6 to 67.8
62 to 72
Manganese (Mn), % 7.5 to 9.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
2.0 to 3.0
Nickel (Ni), % 5.0 to 7.0
10 to 14
Nitrogen (N), % 0.25 to 0.5
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030