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ASTM B817 Type II vs. EN 1.4557 Stainless Steel

ASTM B817 type II belongs to the titanium alloys classification, while EN 1.4557 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is EN 1.4557 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 3.0 to 13
40
Fatigue Strength, MPa 390 to 530
260
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 900 to 960
560
Tensile Strength: Yield (Proof), MPa 780 to 900
300

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 350
1090
Melting Completion (Liquidus), °C 1580
1460
Melting Onset (Solidus), °C 1530
1420
Specific Heat Capacity, J/kg-K 550
460
Thermal Expansion, µm/m-K 9.9
17

Otherwise Unclassified Properties

Base Metal Price, % relative 37
29
Density, g/cm3 4.6
8.0
Embodied Carbon, kg CO2/kg material 40
5.6
Embodied Energy, MJ/kg 650
76
Embodied Water, L/kg 220
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 55 to 58
19
Strength to Weight: Bending, points 45 to 47
19
Thermal Shock Resistance, points 62 to 66
12

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.020
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 0.35 to 1.0
0.5 to 1.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
49.5 to 56.3
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
17.5 to 19.5
Nitrogen (N), % 0 to 0.040
0.18 to 0.24
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 1.0
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Residuals, % 0 to 0.4
0