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EN 1.4958 Stainless Steel vs. ASTM B817 Type II

EN 1.4958 stainless steel belongs to the iron alloys classification, while ASTM B817 type II belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4958 stainless steel and the bottom bar is ASTM B817 type II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 40
3.0 to 13
Fatigue Strength, MPa 170
390 to 530
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 630
900 to 960
Tensile Strength: Yield (Proof), MPa 190
780 to 900

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1090
350
Melting Completion (Liquidus), °C 1400
1580
Melting Onset (Solidus), °C 1350
1530
Specific Heat Capacity, J/kg-K 480
550
Thermal Expansion, µm/m-K 15
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 30
37
Density, g/cm3 8.0
4.6
Embodied Carbon, kg CO2/kg material 5.3
40
Embodied Energy, MJ/kg 75
650
Embodied Water, L/kg 200
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
26 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 95
2890 to 3890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
34
Strength to Weight: Axial, points 22
55 to 58
Strength to Weight: Bending, points 20
45 to 47
Thermal Shock Resistance, points 15
62 to 66

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
5.0 to 6.0
Carbon (C), % 0.030 to 0.080
0 to 0.1
Chlorine (Cl), % 0
0 to 0.2
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 41.1 to 50.6
0.35 to 1.0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 30 to 32.5
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0 to 0.040
Oxygen (O), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.7
0 to 0.1
Sodium (Na), % 0
0 to 0.2
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0.2 to 0.5
82.1 to 87.8
Vanadium (V), % 0
5.0 to 6.0
Residuals, % 0
0 to 0.4