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EN 1.7383 Steel vs. AISI 309H Stainless Steel

Both EN 1.7383 steel and AISI 309H stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 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 1.7383 steel and the bottom bar is AISI 309H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 23
40
Fatigue Strength, MPa 210 to 270
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
78
Shear Strength, MPa 350 to 380
400
Tensile Strength: Ultimate (UTS), MPa 560 to 610
580
Tensile Strength: Yield (Proof), MPa 300 to 400
230

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 460
1080
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
3.6
Embodied Energy, MJ/kg 23
51
Embodied Water, L/kg 59
170

Common Calculations

PREN (Pitting Resistance) 5.6
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 420
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 22
21
Strength to Weight: Bending, points 19 to 20
20
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 16 to 18
13

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.15
0.040 to 0.1
Chromium (Cr), % 2.0 to 2.5
22 to 24
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.3 to 96.6
58.1 to 66
Manganese (Mn), % 0.4 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.3
12 to 15
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030