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ASTM A202 Steel vs. AISI 348H Stainless Steel

Both ASTM A202 steel and AISI 348H stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A202 steel and the bottom bar is AISI 348H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 18
40
Fatigue Strength, MPa 240
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 360 to 410
400
Tensile Strength: Ultimate (UTS), MPa 590 to 670
580
Tensile Strength: Yield (Proof), MPa 350 to 360
230

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 410
940
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
56
Embodied Water, L/kg 49
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 96
190
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 350
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 24
21
Strength to Weight: Bending, points 20 to 22
20
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 17 to 20
13