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EN 1.4310 Stainless Steel vs. AISI 312 Stainless Steel

Both EN 1.4310 stainless steel and AISI 312 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4310 stainless steel and the bottom bar is AISI 312 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 45
28
Fatigue Strength, MPa 240 to 330
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 510 to 550
510
Tensile Strength: Ultimate (UTS), MPa 730 to 900
780
Tensile Strength: Yield (Proof), MPa 260 to 570
510

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.9
3.4
Embodied Energy, MJ/kg 42
48
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 20
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
190
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
640
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 32
28
Strength to Weight: Bending, points 23 to 27
24
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 15 to 18
21

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 16 to 19
24 to 26
Iron (Fe), % 66.4 to 78
62.2 to 69.2
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.8
1.2 to 2.0
Nickel (Ni), % 6.0 to 9.5
5.5 to 6.5
Nitrogen (N), % 0 to 0.1
0.14 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030