UNS S46500 (Alloy 465) Stainless Steel
S46500 stainless steel is a precipitation-hardening stainless steel formulated for primary forming into wrought products. S46500 is the UNS number for this material. Alloy 465 is the common industry name.
It can have a moderately high tensile strength and has a moderately high embodied energy among wrought precipitation-hardening stainless steels.
The properties of S46500 stainless steel include seven common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare S46500 stainless steel to: wrought precipitation-hardening stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
2.3 to 14 %
Fatigue Strength
550 to 890 MPa 79 to 130 x 103 psi
Poisson's Ratio
0.28
Rockwell C Hardness
29 to 54
Shear Modulus
75 GPa 11 x 106 psi
Shear Strength
730 to 1120 MPa 110 to 160 x 103 psi
Tensile Strength: Ultimate (UTS)
1260 to 1930 MPa 180 to 280 x 103 psi
Tensile Strength: Yield (Proof)
1120 to 1810 MPa 160 to 260 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
680 °C 1260 °F
Maximum Temperature: Mechanical
780 °C 1430 °F
Melting Completion (Liquidus)
1450 °C 2650 °F
Melting Onset (Solidus)
1410 °C 2570 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Expansion
11 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
15 % relative
Density
7.9 g/cm3 490 lb/ft3
Embodied Carbon
3.6 kg CO2/kg material
Embodied Energy
51 MJ/kg 22 x 103 BTU/lb
Embodied Water
120 L/kg 14 gal/lb
Common Calculations
PREN (Pitting Resistance)
15
Resilience: Ultimate (Unit Rupture Work)
43 to 210 MJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
44 to 68 points
Strength to Weight: Bending
33 to 44 points
Thermal Shock Resistance
44 to 67 points
Alloy Composition
Among wrought stainless steels, the composition of S46500 stainless steel is notable for including titanium (Ti). Titanium is used to broadly improve mechanical properties.
| Fe | 72.6 to 76.1 | |
| Cr | 11 to 12.5 | |
| Ni | 10.7 to 11.3 | |
| Ti | 1.5 to 1.8 | |
| Mo | 0.75 to 1.3 | |
| Mn | 0 to 0.25 | |
| Si | 0 to 0.25 | |
| C | 0 to 0.020 | |
| P | 0 to 0.015 | |
| S | 0 to 0.010 | |
| N | 0 to 0.010 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM A693: Standard Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
ASTM A564: Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012
ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993
Corrosion of Stainless Steels, A. John Sedriks, 1996
ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010