H950 Hardened S13800 Stainless Steel
H950 hardened S13800 stainless steel is S13800 stainless steel in the hardened (H) condition. It has the highest strength compared to the other variants of S13800 stainless steel.
The graph bars on the material properties cards below compare H950 hardened S13800 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
480
Elastic (Young's, Tensile) Modulus
200 GPa 28 x 106 psi
Elongation at Break
11 %
Fatigue Strength
870 MPa 130 x 103 psi
Poisson's Ratio
0.28
Reduction in Area
39 %
Rockwell C Hardness
51
Shear Modulus
77 GPa 11 x 106 psi
Shear Strength
1030 MPa 150 x 103 psi
Tensile Strength: Ultimate (UTS)
1730 MPa 250 x 103 psi
Tensile Strength: Yield (Proof)
1580 MPa 230 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
390 °C 740 °F
Maximum Temperature: Mechanical
810 °C 1490 °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 Conductivity
16 W/m-K 9.3 BTU/h-ft-°F
Thermal Expansion
11 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.6 % IACS
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
46 MJ/kg 20 x 103 BTU/lb
Embodied Water
140 L/kg 16 gal/lb
Common Calculations
PREN (Pitting Resistance)
21
Resilience: Ultimate (Unit Rupture Work)
190 MJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
61 points
Strength to Weight: Bending
41 points
Thermal Diffusivity
4.3 mm2/s
Thermal Shock Resistance
58 points
Alloy Composition
| Fe | 73.6 to 77.3 | |
| Cr | 12.3 to 13.2 | |
| Ni | 7.5 to 8.5 | |
| Mo | 2.0 to 3.0 | |
| Al | 0.9 to 1.4 | |
| Mn | 0 to 0.2 | |
| Si | 0 to 0.1 | |
| C | 0 to 0.050 | |
| P | 0 to 0.010 | |
| N | 0 to 0.010 | |
| S | 0 to 0.0080 |
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
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