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EN 1.7376 Steel vs. AISI 309S Stainless Steel

Both EN 1.7376 steel and AISI 309S stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 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 EN 1.7376 steel and the bottom bar is AISI 309S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
42
Fatigue Strength, MPa 320
210
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
78
Tensile Strength: Ultimate (UTS), MPa 710
580
Tensile Strength: Yield (Proof), MPa 460
230

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
1080
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
3.6
Embodied Energy, MJ/kg 29
51
Embodied Water, L/kg 88
170

Common Calculations

PREN (Pitting Resistance) 12
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
190
Resilience: Unit (Modulus of Resilience), kJ/m3 560
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 6.9
4.0
Thermal Shock Resistance, points 20
13

Alloy Composition

Carbon (C), % 0.12 to 0.19
0 to 0.080
Chromium (Cr), % 8.0 to 10
22 to 24
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 86.2 to 90.6
58.1 to 66
Manganese (Mn), % 0.35 to 0.65
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.2
0
Nickel (Ni), % 0 to 0.4
12 to 15
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.050
0