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S38815 Stainless Steel vs. EN 1.4988 Stainless Steel

Both S38815 stainless steel and EN 1.4988 stainless steel are iron alloys. They have a moderately high 91% 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 S38815 stainless steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 230
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 410
430
Tensile Strength: Ultimate (UTS), MPa 610
640
Tensile Strength: Yield (Proof), MPa 290
290

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Corrosion, °C 400
520
Maximum Temperature: Mechanical, °C 860
920
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1310
1400
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 19
23
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.8
6.0
Embodied Energy, MJ/kg 54
89
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 18
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
180
Resilience: Unit (Modulus of Resilience), kJ/m3 220
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
23
Strength to Weight: Bending, points 21
21
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0.040 to 0.1
Chromium (Cr), % 13 to 15
15.5 to 17.5
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
62.1 to 69.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0.75 to 1.5
1.1 to 1.5
Nickel (Ni), % 13 to 17
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 5.5 to 6.5
0.3 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.015
Vanadium (V), % 0
0.6 to 0.85