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ASTM A372 Grade H Steel vs. S28200 Stainless Steel

Both ASTM A372 grade H steel and S28200 stainless steel are iron alloys. They have 63% of their average alloy composition in common. 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 ASTM A372 grade H steel and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 22
45
Fatigue Strength, MPa 310 to 380
430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 410 to 570
610
Tensile Strength: Ultimate (UTS), MPa 650 to 910
870
Tensile Strength: Yield (Proof), MPa 430 to 550
460

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
900
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
41
Embodied Water, L/kg 49
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
330
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
540
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 23 to 32
32
Strength to Weight: Bending, points 21 to 27
27
Thermal Shock Resistance, points 19 to 27
17

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.15
Chromium (Cr), % 0.4 to 0.65
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 97.3 to 98.3
57.7 to 64.1
Manganese (Mn), % 0.75 to 1.1
17 to 19
Molybdenum (Mo), % 0.15 to 0.25
0.75 to 1.3
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030