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ASTM A372 Grade H Steel vs. S15700 Stainless Steel

Both ASTM A372 grade H steel and S15700 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 S15700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
200 to 460
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 22
1.1 to 29
Fatigue Strength, MPa 310 to 380
370 to 770
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 410 to 570
770 to 1070
Tensile Strength: Ultimate (UTS), MPa 650 to 910
1180 to 1890
Tensile Strength: Yield (Proof), MPa 430 to 550
500 to 1770

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
870
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
15
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.4
Embodied Energy, MJ/kg 20
47
Embodied Water, L/kg 49
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
17 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
640 to 4660
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 32
42 to 67
Strength to Weight: Bending, points 21 to 27
32 to 43
Thermal Diffusivity, mm2/s 12
4.2
Thermal Shock Resistance, points 19 to 27
39 to 63

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0.3 to 0.4
0 to 0.090
Chromium (Cr), % 0.4 to 0.65
14 to 16
Iron (Fe), % 97.3 to 98.3
69.6 to 76.8
Manganese (Mn), % 0.75 to 1.1
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
2.0 to 3.0
Nickel (Ni), % 0
6.5 to 7.7
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030

Comparable Variants