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EN 1.4874 Stainless Steel vs. ASTM A356 Grade 9

Both EN 1.4874 stainless steel and ASTM A356 grade 9 are iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. 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 1.4874 stainless steel and the bottom bar is ASTM A356 grade 9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 6.7
17
Fatigue Strength, MPa 180
310
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 480
670
Tensile Strength: Yield (Proof), MPa 360
460

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1150
440
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
41
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
3.6
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 7.6
2.4
Embodied Energy, MJ/kg 110
33
Embodied Water, L/kg 290
56

Common Calculations

PREN (Pitting Resistance) 34
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
100
Resilience: Unit (Modulus of Resilience), kJ/m3 310
570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16
24
Strength to Weight: Bending, points 16
22
Thermal Diffusivity, mm2/s 3.3
11
Thermal Shock Resistance, points 11
19

Alloy Composition

Carbon (C), % 0.35 to 0.65
0 to 0.2
Chromium (Cr), % 19 to 22
1.0 to 1.5
Cobalt (Co), % 18.5 to 22
0
Iron (Fe), % 23 to 38.9
95.2 to 97.2
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 2.5 to 3.0
0.9 to 1.2
Nickel (Ni), % 18 to 22
0
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.2 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0
Vanadium (V), % 0
0.2 to 0.35