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AISI 305 Stainless Steel vs. EN 1.7729 Steel

Both AISI 305 stainless steel and EN 1.7729 steel are iron alloys. They have 71% 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 AISI 305 stainless steel and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 220
270
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34 to 45
17
Fatigue Strength, MPa 210 to 280
500
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400 to 470
560
Tensile Strength: Ultimate (UTS), MPa 580 to 710
910
Tensile Strength: Yield (Proof), MPa 230 to 350
750

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 540
430
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 16
3.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.2
3.3
Embodied Energy, MJ/kg 45
49
Embodied Water, L/kg 150
59

Common Calculations

PREN (Pitting Resistance) 18
4.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 210
150
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 320
1500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20 to 25
32
Strength to Weight: Bending, points 20 to 23
27
Thermal Diffusivity, mm2/s 4.2
11
Thermal Shock Resistance, points 13 to 15
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 0.12
0.17 to 0.23
Chromium (Cr), % 17 to 19
0.9 to 1.2
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 65.1 to 72.5
94.8 to 97
Manganese (Mn), % 0 to 2.0
0.35 to 0.75
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 10.5 to 13
0 to 0.2
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