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ASTM A372 Grade H Steel vs. EN 1.4859 Stainless Steel

Both ASTM A372 grade H steel and EN 1.4859 stainless steel are iron alloys. They have 47% of their average alloy composition in common. There are 30 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 EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 22
23
Fatigue Strength, MPa 310 to 380
140
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 650 to 910
490
Tensile Strength: Yield (Proof), MPa 430 to 550
210

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 410
1050
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
36
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.5
6.2
Embodied Energy, MJ/kg 20
88
Embodied Water, L/kg 49
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
91
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 32
17
Strength to Weight: Bending, points 21 to 27
17
Thermal Diffusivity, mm2/s 12
3.4
Thermal Shock Resistance, points 19 to 27
11

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.050 to 0.15
Chromium (Cr), % 0.4 to 0.65
19 to 21
Iron (Fe), % 97.3 to 98.3
40.3 to 49
Manganese (Mn), % 0.75 to 1.1
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.5
Nickel (Ni), % 0
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0.5 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030