H1150 Hardened S15500 Stainless Steel
H1150 hardened S15500 stainless steel is S15500 stainless steel in the hardened (H) condition. It has the second lowest strength and second highest ductility compared to the other variants of S15500 stainless steel.
The graph bars on the material properties cards below compare H1150 hardened S15500 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
310
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
13 %
Fatigue Strength
450 MPa 66 x 103 psi
Impact Strength: V-Notched Charpy
31 J 23 ft-lb
Poisson's Ratio
0.28
Reduction in Area
34 %
Rockwell C Hardness
32
Shear Modulus
75 GPa 11 x 106 psi
Shear Strength
640 MPa 93 x 103 psi
Tensile Strength: Ultimate (UTS)
1060 MPa 150 x 103 psi
Tensile Strength: Yield (Proof)
810 MPa 120 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
440 °C 830 °F
Maximum Temperature: Mechanical
820 °C 1510 °F
Melting Completion (Liquidus)
1430 °C 2600 °F
Melting Onset (Solidus)
1380 °C 2520 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
17 W/m-K 9.8 BTU/h-ft-°F
Thermal Expansion
11 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.5 % IACS
Otherwise Unclassified Properties
Base Metal Price
13 % relative
Density
7.8 g/cm3 490 lb/ft3
Embodied Carbon
2.7 kg CO2/kg material
Embodied Energy
39 MJ/kg 17 x 103 BTU/lb
Embodied Water
130 L/kg 15 gal/lb
Common Calculations
PREN (Pitting Resistance)
15
Resilience: Ultimate (Unit Rupture Work)
120 MJ/m3
Resilience: Unit (Modulus of Resilience)
1710 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
38 points
Strength to Weight: Bending
30 points
Thermal Diffusivity
4.6 mm2/s
Thermal Shock Resistance
36 points
Alloy Composition
| Fe | 71.9 to 79.9 | |
| Cr | 14 to 15.5 | |
| Ni | 3.5 to 5.5 | |
| Cu | 2.5 to 4.5 | |
| Mn | 0 to 1.0 | |
| Si | 0 to 1.0 | |
| Nb | 0.15 to 0.45 | |
| C | 0 to 0.070 | |
| P | 0 to 0.040 | |
| S | 0 to 0.030 |
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
Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005
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