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ASTM A372 Grade H Steel vs. EN 1.4852 Stainless Steel

Both ASTM A372 grade H steel and EN 1.4852 stainless steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. 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 1.4852 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
4.6
Fatigue Strength, MPa 310 to 380
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 650 to 910
490
Tensile Strength: Yield (Proof), MPa 430 to 550
250

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
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
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
41
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
6.9
Embodied Energy, MJ/kg 20
100
Embodied Water, L/kg 49
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
19
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 32
17
Strength to Weight: Bending, points 21 to 27
18
Thermal Diffusivity, mm2/s 12
3.4
Thermal Shock Resistance, points 19 to 27
11

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.3 to 0.5
Chromium (Cr), % 0.4 to 0.65
24 to 27
Iron (Fe), % 97.3 to 98.3
29.6 to 40.9
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
33 to 36
Niobium (Nb), % 0
0.8 to 1.8
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
1.0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.030