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ASTM A204 Steel vs. S17400 Stainless Steel

Both ASTM A204 steel and S17400 stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A204 steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 22
11 to 21
Fatigue Strength, MPa 200 to 220
380 to 670
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 330 to 360
570 to 830
Tensile Strength: Ultimate (UTS), MPa 520 to 590
910 to 1390
Tensile Strength: Yield (Proof), MPa 290 to 330
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
850
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1420 to 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
14
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
39
Embodied Water, L/kg 47
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
880 to 4060
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
32 to 49
Strength to Weight: Bending, points 18 to 20
27 to 35
Thermal Diffusivity, mm2/s 14
4.5
Thermal Shock Resistance, points 15 to 17
30 to 46