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ASTM A372 Grade H Steel vs. EN 1.4658 Stainless Steel

Both ASTM A372 grade H steel and EN 1.4658 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 20 to 22
28
Fatigue Strength, MPa 310 to 380
530
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Shear Strength, MPa 410 to 570
580
Tensile Strength: Ultimate (UTS), MPa 650 to 910
900
Tensile Strength: Yield (Proof), MPa 430 to 550
730

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
16
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
4.5
Embodied Energy, MJ/kg 20
61
Embodied Water, L/kg 49
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
240
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
1280
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 32
32
Strength to Weight: Bending, points 21 to 27
26
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 19 to 27
24

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.030
Chromium (Cr), % 0.4 to 0.65
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 97.3 to 98.3
50.9 to 63.7
Manganese (Mn), % 0.75 to 1.1
0 to 1.5
Molybdenum (Mo), % 0.15 to 0.25
4.0 to 5.0
Nickel (Ni), % 0
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010