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EN 1.4855 Stainless Steel vs. ASTM A372 Grade K Steel

Both EN 1.4855 stainless steel and ASTM A372 grade K steel are iron alloys. They have 52% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4855 stainless steel and the bottom bar is ASTM A372 grade K steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 4.6
23
Fatigue Strength, MPa 120
440
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 500
780
Tensile Strength: Yield (Proof), MPa 250
620

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1050
440
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
48
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
4.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 5.9
1.8
Embodied Energy, MJ/kg 85
24
Embodied Water, L/kg 200
57

Common Calculations

PREN (Pitting Resistance) 25
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
160
Resilience: Unit (Modulus of Resilience), kJ/m3 160
1010
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
27
Strength to Weight: Bending, points 18
24
Thermal Diffusivity, mm2/s 3.7
13
Thermal Shock Resistance, points 11
23

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.18
Chromium (Cr), % 23 to 25
1.0 to 1.8
Iron (Fe), % 42.6 to 51.9
93.4 to 96.6
Manganese (Mn), % 0 to 2.0
0.1 to 0.4
Molybdenum (Mo), % 0 to 0.5
0.2 to 0.6
Nickel (Ni), % 23 to 25
2.0 to 3.3
Niobium (Nb), % 0.8 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 1.0 to 2.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010