UNS S35000 (Alloy 350, Alloy 633) Stainless Steel
S35000 stainless steel is a precipitation-hardening stainless steel formulated for primary forming into wrought products. S35000 is the UNS number for this material. Additionally, the common industry name is Alloy 360.
It can have a moderately high tensile strength among the wrought precipitation-hardening stainless steels in the database.
The properties of S35000 stainless steel include three common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare S35000 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
200 GPa 29 x 106 psi
Elongation at Break
2.3 to 14 %
Fatigue Strength
380 to 520 MPa 54 to 75 x 103 psi
Poisson's Ratio
0.28
Rockwell C Hardness
26 to 37
Shear Modulus
78 GPa 11 x 106 psi
Shear Strength
740 to 950 MPa 110 to 140 x 103 psi
Tensile Strength: Ultimate (UTS)
1300 to 1570 MPa 190 to 230 x 103 psi
Tensile Strength: Yield (Proof)
660 to 1160 MPa 95 to 170 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
410 °C 760 °F
Maximum Temperature: Mechanical
900 °C 1650 °F
Melting Completion (Liquidus)
1460 °C 2660 °F
Melting Onset (Solidus)
1410 °C 2580 °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
14 % relative
Density
7.8 g/cm3 490 lb/ft3
Embodied Carbon
3.2 kg CO2/kg material
Embodied Energy
44 MJ/kg 19 x 103 BTU/lb
Embodied Water
130 L/kg 16 gal/lb
Common Calculations
PREN (Pitting Resistance)
28
Resilience: Ultimate (Unit Rupture Work)
28 to 170 MJ/m3
Resilience: Unit (Modulus of Resilience)
1070 to 3360 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
46 to 56 points
Strength to Weight: Bending
34 to 38 points
Thermal Diffusivity
4.4 mm2/s
Thermal Shock Resistance
42 to 51 points
Alloy Composition
Among wrought stainless steels, the composition of S35000 stainless steel is notable for containing comparatively high amounts of molybdenum (Mo) and chromium (Cr). Molybdenum is used to facilitate tempering. In addition, it offers modest bonuses to a wide range of material properties. Chromium is the defining alloying element of stainless steel. Higher chromium content imparts additional corrosion resistance.
| Fe | 72.7 to 76.9 | |
| Cr | 16 to 17 | |
| Ni | 4.0 to 5.0 | |
| Mo | 2.5 to 3.2 | |
| Mn | 0.5 to 1.3 | |
| Si | 0 to 0.5 | |
| N | 0.070 to 0.13 | |
| C | 0.070 to 0.11 | |
| P | 0 to 0.040 | |
| 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
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