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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.

Iron (Fe) 75.4 to 79.5
Chromium (Cr) 14 to 14.5
Nickel (Ni) 6.5 to 7.0
Titanium (Ti) 0.6 to 0.9
Manganese (Mn) 0 to 0.5
Silicon (Si) 0 to 0.3
Molybdenum (Mo) 0 to 0.3
Aluminum (Al) 0 to 0.1
Carbon (C) 0 to 0.050
Phosphorus (P) 0 to 0.030
Sulfur (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