UNS S36200 (XM-9) Stainless Steel
S36200 stainless steel is a precipitation-hardening stainless steel formulated for primary forming into wrought products. XM-9 is the ASTM designation for this material. S36200 is the UNS number.
It has the lowest base cost and can have a moderately low ductility among wrought precipitation-hardening stainless steels.
The properties of S36200 stainless steel include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare S36200 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
3.4 to 4.6 %
Fatigue Strength
450 to 570 MPa 66 to 83 x 103 psi
Poisson's Ratio
0.28
Rockwell C Hardness
25 to 33
Shear Modulus
76 GPa 11 x 106 psi
Shear Strength
680 to 810 MPa 99 to 120 x 103 psi
Tensile Strength: Ultimate (UTS)
1180 to 1410 MPa 170 to 210 x 103 psi
Tensile Strength: Yield (Proof)
960 to 1240 MPa 140 to 180 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
530 °C 990 °F
Maximum Temperature: Mechanical
820 °C 1510 °F
Melting Completion (Liquidus)
1440 °C 2630 °F
Melting Onset (Solidus)
1400 °C 2550 °F
Specific Heat Capacity
480 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
12 % relative
Density
7.8 g/cm3 490 lb/ft3
Embodied Carbon
2.8 kg CO2/kg material
Embodied Energy
40 MJ/kg 17 x 103 BTU/lb
Embodied Water
120 L/kg 14 gal/lb
Common Calculations
PREN (Pitting Resistance)
15
Resilience: Ultimate (Unit Rupture Work)
46 to 51 MJ/m3
Resilience: Unit (Modulus of Resilience)
2380 to 3930 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
42 to 50 points
Strength to Weight: Bending
32 to 36 points
Thermal Diffusivity
4.3 mm2/s
Thermal Shock Resistance
40 to 48 points
Alloy Composition
Among wrought stainless steels, the composition of S36200 stainless steel is notable for including aluminum (Al) and titanium (Ti). Aluminum is used to improve oxidation resistance. It can also enhance the effects of heat treatment. Titanium is used to broadly improve mechanical properties.
| Fe | 75.4 to 79.5 | |
| Cr | 14 to 14.5 | |
| Ni | 6.5 to 7.0 | |
| Ti | 0.6 to 0.9 | |
| Mn | 0 to 0.5 | |
| Si | 0 to 0.3 | |
| Mo | 0 to 0.3 | |
| Al | 0 to 0.1 | |
| C | 0 to 0.050 | |
| P | 0 to 0.030 | |
| S | 0 to 0.030 |
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
Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012
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
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015