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AISI 204 Stainless Steel vs. AISI 302B Stainless Steel

Both AISI 204 stainless steel and AISI 302B stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 204 stainless steel and the bottom bar is AISI 302B stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 39
45
Fatigue Strength, MPa 320 to 720
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 500 to 700
410
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
580
Tensile Strength: Yield (Proof), MPa 380 to 1080
230

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 850
930
Melting Completion (Liquidus), °C 1410
1400
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.4
3.0
Embodied Energy, MJ/kg 35
43
Embodied Water, L/kg 130
140

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
210
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 40
21
Strength to Weight: Bending, points 24 to 31
20
Thermal Diffusivity, mm2/s 4.1
4.4
Thermal Shock Resistance, points 16 to 24
13

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 15 to 17
17 to 19
Iron (Fe), % 69.6 to 76.4
65.7 to 73
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Nickel (Ni), % 1.5 to 3.0
8.0 to 10
Nitrogen (N), % 0.15 to 0.3
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0 to 0.030