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ASTM A372 Grade H Steel vs. EN 1.4646 Stainless Steel

Both ASTM A372 grade H steel and EN 1.4646 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 27 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 EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 22
34
Fatigue Strength, MPa 310 to 380
340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 410 to 570
500
Tensile Strength: Ultimate (UTS), MPa 650 to 910
750
Tensile Strength: Yield (Proof), MPa 430 to 550
430

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
910
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
41
Embodied Water, L/kg 49
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
220
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 32
27
Strength to Weight: Bending, points 21 to 27
24
Thermal Shock Resistance, points 19 to 27
16

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.020 to 0.1
Chromium (Cr), % 0.4 to 0.65
17 to 19
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 97.3 to 98.3
59 to 67.3
Manganese (Mn), % 0.75 to 1.1
10.5 to 12.5
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.5
Nickel (Ni), % 0
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.050
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015