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EN 1.4371 Stainless Steel vs. AISI 310S Stainless Steel

Both EN 1.4371 stainless steel and AISI 310S stainless steel are iron alloys. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4371 stainless steel and the bottom bar is AISI 310S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
170 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45 to 51
34 to 44
Fatigue Strength, MPa 290 to 340
250 to 280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Shear Strength, MPa 520 to 540
420 to 470
Tensile Strength: Ultimate (UTS), MPa 740 to 750
600 to 710
Tensile Strength: Yield (Proof), MPa 320 to 340
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
450
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
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.6
4.3
Embodied Energy, MJ/kg 38
61
Embodied Water, L/kg 140
190

Common Calculations

PREN (Pitting Resistance) 20
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 310
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 300
190 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
21 to 25
Strength to Weight: Bending, points 24
20 to 22
Thermal Diffusivity, mm2/s 4.0
4.1
Thermal Shock Resistance, points 16
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16 to 17.5
24 to 26
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 66.7 to 74.4
48.3 to 57
Manganese (Mn), % 6.0 to 8.0
0 to 2.0
Nickel (Ni), % 3.5 to 5.5
19 to 22
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030

Comparable Variants