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AISI 204 Stainless Steel vs. AISI 316N Stainless Steel

Both AISI 204 stainless steel and AISI 316N stainless steel are iron alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is AISI 204 stainless steel and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 39
9.0 to 39
Fatigue Strength, MPa 320 to 720
230 to 450
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 500 to 700
420 to 690
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
620 to 1160
Tensile Strength: Yield (Proof), MPa 380 to 1080
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 850
940
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.4
3.9
Embodied Energy, MJ/kg 35
53
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 20
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
180 to 1880
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 40
22 to 41
Strength to Weight: Bending, points 24 to 31
20 to 31
Thermal Diffusivity, mm2/s 4.1
4.1
Thermal Shock Resistance, points 16 to 24
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 15 to 17
16 to 18
Iron (Fe), % 69.6 to 76.4
61.9 to 71.9
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 1.5 to 3.0
10 to 14
Nitrogen (N), % 0.15 to 0.3
0.1 to 0.16
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030

Comparable Variants