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S31730 Stainless Steel vs. ASTM A299 Steel

Both S31730 stainless steel and ASTM A299 steel are iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is ASTM A299 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
21 to 22
Fatigue Strength, MPa 170
230 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 370
370 to 390
Tensile Strength: Ultimate (UTS), MPa 540
590 to 620
Tensile Strength: Yield (Proof), MPa 200
330 to 360

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 990
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
1.9
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.6
1.4
Embodied Energy, MJ/kg 63
19
Embodied Water, L/kg 180
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 99
290 to 350
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
21 to 22
Strength to Weight: Bending, points 18
20 to 21
Thermal Shock Resistance, points 12
17 to 18