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AISI 204 Stainless Steel vs. SAE-AISI 1340 Steel

Both AISI 204 stainless steel and SAE-AISI 1340 steel are iron alloys. They have 75% of their average alloy composition in common. There are 31 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 SAE-AISI 1340 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23 to 39
11 to 23
Fatigue Strength, MPa 320 to 720
220 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 500 to 700
340 to 440
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
540 to 730
Tensile Strength: Yield (Proof), MPa 380 to 1080
300 to 620

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 850
400
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.4
Embodied Energy, MJ/kg 35
19
Embodied Water, L/kg 130
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
78 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
240 to 1040
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 40
19 to 26
Strength to Weight: Bending, points 24 to 31
19 to 23
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 16 to 24
17 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0.38 to 0.43
Chromium (Cr), % 15 to 17
0
Iron (Fe), % 69.6 to 76.4
97.2 to 97.9
Manganese (Mn), % 7.0 to 9.0
1.6 to 1.9
Nickel (Ni), % 1.5 to 3.0
0
Nitrogen (N), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040

Comparable Variants