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AISI 204 Stainless Steel vs. AWS ERTi-7

AISI 204 stainless steel belongs to the iron alloys classification, while AWS ERTi-7 belongs to the titanium alloys. There are 28 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 AISI 204 stainless steel and the bottom bar is AWS ERTi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 23 to 39
20
Fatigue Strength, MPa 320 to 720
190
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
340
Tensile Strength: Yield (Proof), MPa 380 to 1080
280

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 850
320
Melting Completion (Liquidus), °C 1410
1670
Melting Onset (Solidus), °C 1370
1620
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 17
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.4
47
Embodied Energy, MJ/kg 35
800
Embodied Water, L/kg 130
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
64
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 27 to 40
21
Strength to Weight: Bending, points 24 to 31
24
Thermal Diffusivity, mm2/s 4.1
8.8
Thermal Shock Resistance, points 16 to 24
26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 15 to 17
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 69.6 to 76.4
0 to 0.12
Manganese (Mn), % 7.0 to 9.0
0
Nickel (Ni), % 1.5 to 3.0
0
Nitrogen (N), % 0.15 to 0.3
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Palladium (Pd), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
99.417 to 99.8