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S38815 Stainless Steel vs. EN 1.4729 Stainless Steel

Both S38815 stainless steel and EN 1.4729 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is EN 1.4729 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
15
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
75

Thermal Properties

Latent Heat of Fusion, J/g 370
300
Maximum Temperature: Corrosion, °C 400
390
Maximum Temperature: Mechanical, °C 860
850
Melting Completion (Liquidus), °C 1360
1420
Melting Onset (Solidus), °C 1310
1380
Specific Heat Capacity, J/kg-K 500
490
Thermal Expansion, µm/m-K 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 19
7.5
Density, g/cm3 7.5
7.6
Embodied Carbon, kg CO2/kg material 3.8
2.1
Embodied Energy, MJ/kg 54
29
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 18
14
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0.3 to 0.5
Chromium (Cr), % 13 to 15
12 to 14
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
80.4 to 86.7
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
0 to 0.5
Nickel (Ni), % 13 to 17
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 5.5 to 6.5
1.0 to 2.5
Sulfur (S), % 0 to 0.020
0 to 0.030