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ASTM A372 Grade H Steel vs. EN 1.4742 Stainless Steel

Both ASTM A372 grade H steel and EN 1.4742 stainless steel are iron alloys. They have 81% 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 EN 1.4742 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 22
17
Fatigue Strength, MPa 310 to 380
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 410 to 570
370
Tensile Strength: Ultimate (UTS), MPa 650 to 910
600
Tensile Strength: Yield (Proof), MPa 430 to 550
300

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
1000
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 45
19
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
9.0
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.5
2.2
Embodied Energy, MJ/kg 20
32
Embodied Water, L/kg 49
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
84
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 32
22
Strength to Weight: Bending, points 21 to 27
21
Thermal Diffusivity, mm2/s 12
5.1
Thermal Shock Resistance, points 19 to 27
21

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0.3 to 0.4
0 to 0.12
Chromium (Cr), % 0.4 to 0.65
17 to 19
Iron (Fe), % 97.3 to 98.3
77.2 to 81.6
Manganese (Mn), % 0.75 to 1.1
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0.7 to 1.4
Sulfur (S), % 0 to 0.010
0 to 0.015