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EN 1.4971 Stainless Steel vs. S32304 Stainless Steel

Both EN 1.4971 stainless steel and S32304 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is S32304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
250
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
28
Fatigue Strength, MPa 270
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 81
79
Shear Strength, MPa 530
440
Tensile Strength: Ultimate (UTS), MPa 800
670
Tensile Strength: Yield (Proof), MPa 340
460

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 570
440
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
14
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.6
2.8
Embodied Energy, MJ/kg 110
40
Embodied Water, L/kg 300
160

Common Calculations

PREN (Pitting Resistance) 38
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
170
Resilience: Unit (Modulus of Resilience), kJ/m3 280
520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.4
4.0
Thermal Shock Resistance, points 19
18

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.030
Chromium (Cr), % 20 to 22.5
21.5 to 24.5
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0.050 to 0.6
Iron (Fe), % 24.3 to 37.1
65 to 75.4
Manganese (Mn), % 0 to 2.0
0 to 2.5
Molybdenum (Mo), % 2.5 to 3.5
0.050 to 0.6
Nickel (Ni), % 19 to 21
3.0 to 5.5
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0.050 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0