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EN 1.4371 Stainless Steel vs. S32803 Stainless Steel

Both EN 1.4371 stainless steel and S32803 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4371 stainless steel and the bottom bar is S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
210
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 45 to 51
18
Fatigue Strength, MPa 290 to 340
350
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 520 to 540
420
Tensile Strength: Ultimate (UTS), MPa 740 to 750
680
Tensile Strength: Yield (Proof), MPa 320 to 340
560

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
510
Maximum Temperature: Mechanical, °C 880
1100
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
19
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
3.7
Embodied Energy, MJ/kg 38
53
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 20
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 310
120
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 300
760
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 4.0
4.4
Thermal Shock Resistance, points 16
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 16 to 17.5
28 to 29
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 66.7 to 74.4
62.9 to 67.1
Manganese (Mn), % 6.0 to 8.0
0 to 0.5
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 3.5 to 5.5
3.0 to 4.0
Niobium (Nb), % 0
0.15 to 0.5
Nitrogen (N), % 0.15 to 0.25
0 to 0.020
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.55
Sulfur (S), % 0 to 0.015
0 to 0.0035