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AISI 204 Stainless Steel vs. AISI 310S Stainless Steel

Both AISI 204 stainless steel and AISI 310S stainless steel are iron alloys. They have 72% 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 310S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
170 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 39
34 to 44
Fatigue Strength, MPa 320 to 720
250 to 280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Shear Strength, MPa 500 to 700
420 to 470
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
600 to 710
Tensile Strength: Yield (Proof), MPa 380 to 1080
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.4
4.3
Embodied Energy, MJ/kg 35
61
Embodied Water, L/kg 130
190

Common Calculations

PREN (Pitting Resistance) 20
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
190 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 40
21 to 25
Strength to Weight: Bending, points 24 to 31
20 to 22
Thermal Diffusivity, mm2/s 4.1
4.1
Thermal Shock Resistance, points 16 to 24
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 15 to 17
24 to 26
Iron (Fe), % 69.6 to 76.4
48.3 to 57
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Nickel (Ni), % 1.5 to 3.0
19 to 22
Nitrogen (N), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030