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EN 1.4658 Stainless Steel vs. ASTM A372 Grade H Steel

Both EN 1.4658 stainless steel and ASTM A372 grade H 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 EN 1.4658 stainless steel and the bottom bar is ASTM A372 grade H steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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