AISI 329 (S32900) Stainless Steel
Duplex Stainless Steels
Property Overview
Density7.7g/cm³
Elastic Modulus200GPa
Tensile Strength710MPa
Yield Strength540MPa
Brinell Hardness240HB
Maximum Service Temperature1100°C
Chemical Composition
C
0 to 0.080%
CR
23 to 28%
NI
2.0 to 5.0%
MO
1.0 to 2.0%
MN
0 to 1.0%
SI
0 to 0.75%
P
0 to 0.040%
S
0 to 0.030%
FE
63.1 to 74%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
17 %
Fatigue Strength
330 MPa
Poisson's Ratio
0.27
Shear Modulus
80 GPa
Shear Strength
440 MPa
Tensile Strength: Ultimate (UTS)
710 MPa
Tensile Strength: Yield (Proof)
540 MPa
Hardness
Brinell Hardness
240
Rockwell C Hardness
24
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
450 °C
Maximum Temperature: Mechanical
1100 °C
Melting Completion (Liquidus)
1440 °C
Melting Onset (Solidus)
1390 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
16 W/m-K
Thermal Diffusivity
4.3 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
19 points
Electrical
Electrical Conductivity: Equal Volume
2.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.4 % IACS
Calculated
PREN (Pitting Resistance)
30
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
730 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
25 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
16 % relative
Embodied Carbon
3.1 kg CO 2 /kg material
Embodied Energy
44 MJ/kg
Embodied Energy
44 MJ/kg 19 x 10 3 BTU/lb
Embodied Water
170 L/kg
Embodied Water
170 L/kg 20 gal/lb
Registered Designations & Aliases
329AISI 329AISI 329 (S32900) Stainless SteelS32900
Standards
ASTM A240 ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
ASTM A959 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels