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EN 1.7706 Steel vs. AISI 316L Stainless Steel

Both EN 1.7706 steel and AISI 316L stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.7706 steel and the bottom bar is AISI 316L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
170 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
9.0 to 50
Fatigue Strength, MPa 330
170 to 450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 690
530 to 1160
Tensile Strength: Yield (Proof), MPa 500
190 to 870

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 440
870
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
19
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.3
3.9
Embodied Energy, MJ/kg 32
53
Embodied Water, L/kg 57
150

Common Calculations

PREN (Pitting Resistance) 4.7
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
77 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 670
93 to 1880
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
19 to 41
Strength to Weight: Bending, points 22
18 to 31
Thermal Diffusivity, mm2/s 11
4.1
Thermal Shock Resistance, points 20
12 to 25

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.030
Chromium (Cr), % 1.2 to 1.5
16 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.7 to 97.1
62 to 72
Manganese (Mn), % 0.5 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
2.0 to 3.0
Nickel (Ni), % 0 to 0.4
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.2 to 0.3
0