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AISI 316LN Stainless Steel vs. EN 1.7729 Steel

Both AISI 316LN stainless steel and EN 1.7729 steel are iron alloys. They have 70% of their average alloy composition in common. There are 33 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 AISI 316LN stainless steel and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
270
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
17
Fatigue Strength, MPa 200
500
Poisson's Ratio 0.28
0.29
Reduction in Area, % 51
56
Shear Modulus, GPa 82
73
Shear Strength, MPa 410
560
Tensile Strength: Ultimate (UTS), MPa 590
910
Tensile Strength: Yield (Proof), MPa 230
750

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
430
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
3.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
3.3
Embodied Energy, MJ/kg 53
49
Embodied Water, L/kg 150
59

Common Calculations

PREN (Pitting Resistance) 27
4.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
150
Resilience: Unit (Modulus of Resilience), kJ/m3 130
1500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
32
Strength to Weight: Bending, points 20
27
Thermal Diffusivity, mm2/s 4.1
11
Thermal Shock Resistance, points 13
27

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.080
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.030
0.17 to 0.23
Chromium (Cr), % 16 to 18
0.9 to 1.2
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 62 to 71.9
94.8 to 97
Manganese (Mn), % 0 to 2.0
0.35 to 0.75
Molybdenum (Mo), % 2.0 to 3.0
0.9 to 1.1
Nickel (Ni), % 10 to 14
0 to 0.2
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 0
0.070 to 0.15
Vanadium (V), % 0
0.6 to 0.8