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ASTM A372 Grade H Steel vs. AISI 310HCb Stainless Steel

Both ASTM A372 grade H steel and AISI 310HCb stainless steel are iron alloys. They have 54% of their average alloy composition in common. There are 31 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 ASTM A372 grade H steel and the bottom bar is AISI 310HCb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 22
46
Fatigue Strength, MPa 310 to 380
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 410 to 570
410
Tensile Strength: Ultimate (UTS), MPa 650 to 910
590
Tensile Strength: Yield (Proof), MPa 430 to 550
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
28
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.8
Embodied Energy, MJ/kg 20
69
Embodied Water, L/kg 49
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
210
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 32
21
Strength to Weight: Bending, points 21 to 27
20
Thermal Diffusivity, mm2/s 12
3.9
Thermal Shock Resistance, points 19 to 27
13

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.040 to 0.1
Chromium (Cr), % 0.4 to 0.65
24 to 26
Iron (Fe), % 97.3 to 98.3
48 to 57
Manganese (Mn), % 0.75 to 1.1
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
19 to 22
Niobium (Nb), % 0
0 to 1.1
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030