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ASTM A372 Grade H Steel vs. S35135 Stainless Steel

Both ASTM A372 grade H steel and S35135 stainless steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 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 S35135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 22
34
Fatigue Strength, MPa 310 to 380
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 410 to 570
390
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
320
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
37
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.5
6.8
Embodied Energy, MJ/kg 20
94
Embodied Water, L/kg 49
220

Common Calculations

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

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.080
Chromium (Cr), % 0.4 to 0.65
20 to 25
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 97.3 to 98.3
28.3 to 45
Manganese (Mn), % 0.75 to 1.1
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
4.0 to 4.8
Nickel (Ni), % 0
30 to 38
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0.6 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0
0.4 to 1.0