H900 Hardened S45503 Stainless Steel
H900 hardened S45503 stainless steel is S45503 stainless steel in the hardened (H) condition. It has the highest strength and lowest ductility compared to the other variants of S45503 stainless steel.
The graph bars on the material properties cards below compare H900 hardened S45503 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
Brinell Hardness
500
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
4.6 %
Fatigue Strength
800 MPa 120 x 103 psi
Poisson's Ratio
0.28
Reduction in Area
17 %
Rockwell C Hardness
54
Shear Modulus
75 GPa 11 x 106 psi
Shear Strength
1070 MPa 160 x 103 psi
Tensile Strength: Ultimate (UTS)
1850 MPa 270 x 103 psi
Tensile Strength: Yield (Proof)
1700 MPa 250 x 103 psi
Thermal Properties
Latent Heat of Fusion
270 J/g
Maximum Temperature: Corrosion
640 °C 1190 °F
Maximum Temperature: Mechanical
760 °C 1400 °F
Melting Completion (Liquidus)
1440 °C 2630 °F
Melting Onset (Solidus)
1400 °C 2550 °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
3.4 kg CO2/kg material
Embodied Energy
48 MJ/kg 21 x 103 BTU/lb
Embodied Water
120 L/kg 14 gal/lb
Common Calculations
PREN (Pitting Resistance)
13
Resilience: Ultimate (Unit Rupture Work)
82 MJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
65 points
Strength to Weight: Bending
43 points
Thermal Shock Resistance
64 points
Alloy Composition
| Fe | 72.4 to 78.9 | |
| Cr | 11 to 12.5 | |
| Ni | 7.5 to 9.5 | |
| Cu | 1.5 to 2.5 | |
| Ti | 1.0 to 1.4 | |
| Nb | 0.1 to 0.5 | |
| Mn | 0 to 0.5 | |
| Mo | 0 to 0.5 | |
| Si | 0 to 0.2 | |
| C | 0 to 0.010 | |
| P | 0 to 0.010 | |
| S | 0 to 0.010 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM A564: Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
Metallic Materials: Physical, Mechanical, and Corrosion Properties, Philip A. Schweitzer, 2003
ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
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
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015