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S21603 Stainless Steel vs. ASTM A203 Steel

Both S21603 stainless steel and ASTM A203 steel are iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
22 to 26
Fatigue Strength, MPa 360
210 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 490
330 to 370
Tensile Strength: Ultimate (UTS), MPa 690
520 to 590
Tensile Strength: Yield (Proof), MPa 390
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 990
410
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
3.2 to 4.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.6
1.6 to 1.7
Embodied Energy, MJ/kg 50
21 to 23
Embodied Water, L/kg 160
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 380
230 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
18 to 21
Strength to Weight: Bending, points 22
18 to 20
Thermal Shock Resistance, points 15
15 to 17