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AISI 348 Stainless Steel vs. ASTM A209 Steel

Both AISI 348 stainless steel and ASTM A209 steel are iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 348 stainless steel and the bottom bar is ASTM A209 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
34
Fatigue Strength, MPa 200
180 to 200
Poisson's Ratio 0.28
0.29
Rockwell B Hardness 81
77 to 81
Shear Modulus, GPa 77
73
Shear Strength, MPa 400
280 to 310
Tensile Strength: Ultimate (UTS), MPa 580
420 to 460
Tensile Strength: Yield (Proof), MPa 230
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
410
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1390
1420 to 1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
50
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.7
1.5
Embodied Energy, MJ/kg 54
20
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 140
130 to 170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
15 to 16
Strength to Weight: Bending, points 20
16 to 17
Thermal Diffusivity, mm2/s 4.2
13
Thermal Shock Resistance, points 13
12 to 14