UNS S28200 Stainless Steel
S28200 stainless steel is an austenitic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition.
It has a moderately low base cost among wrought austenitic stainless steels. In addition, it has a moderately low embodied energy and a fairly high tensile strength.
The graph bars on the material properties cards below compare S28200 stainless steel to: wrought austenitic 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
260
Elastic (Young's, Tensile) Modulus
200 GPa 29 x 106 psi
Elongation at Break
45 %
Fatigue Strength
430 MPa 62 x 103 psi
Poisson's Ratio
0.28
Reduction in Area
57 %
Shear Modulus
77 GPa 11 x 106 psi
Shear Strength
610 MPa 88 x 103 psi
Tensile Strength: Ultimate (UTS)
870 MPa 130 x 103 psi
Tensile Strength: Yield (Proof)
460 MPa 67 x 103 psi
Thermal Properties
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
410 °C 780 °F
Maximum Temperature: Mechanical
900 °C 1660 °F
Melting Completion (Liquidus)
1380 °C 2510 °F
Melting Onset (Solidus)
1330 °C 2430 °F
Specific Heat Capacity
480 J/kg-K 0.12 BTU/lb-°F
Thermal Expansion
18 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
12 % relative
Density
7.6 g/cm3 470 lb/ft3
Embodied Carbon
2.8 kg CO2/kg material
Embodied Energy
41 MJ/kg 17 x 103 BTU/lb
Embodied Water
160 L/kg 19 gal/lb
Common Calculations
PREN (Pitting Resistance)
29
Resilience: Ultimate (Unit Rupture Work)
330 MJ/m3
Resilience: Unit (Modulus of Resilience)
540 kJ/m3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
26 points
Strength to Weight: Axial
32 points
Strength to Weight: Bending
27 points
Thermal Shock Resistance
17 points
Alloy Composition
Among wrought stainless steels, the composition of S28200 stainless steel is notable for containing a comparatively high amount of manganese (Mn). Manganese is used to improve ductility at elevated temperatures. It also permits a higher nitrogen content than would otherwise be possible.
| Fe | 57.7 to 64.1 | |
| Mn | 17 to 19 | |
| Cr | 17 to 19 | |
| Mo | 0.75 to 1.3 | |
| Cu | 0.75 to 1.3 | |
| Si | 0 to 1.0 | |
| N | 0.4 to 0.6 | |
| C | 0 to 0.15 | |
| P | 0 to 0.045 | |
| S | 0 to 0.030 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM A473: Standard Specification for Stainless Steel Forgings
ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Corrosion of Austenitic Stainless Steels: Mechanism, Mitigation and Monitoring, H. S. Khatak and B. Raj (editors), 2002
Austenitic Stainless Steels: Microstructure and Mechanical Properties, P. Marshall, 1984
Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993
ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010