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AISI 309Cb (S30940) Stainless Steel

Austenitic & General Stainless Steels

OverviewChemical CompositionMechanical PropertiesPhysical PropertiesOther Properties

Property Overview

Density7.8g/cm³
Elastic Modulus200GPa
Tensile Strength580MPa
Yield Strength230MPa
Brinell Hardness190HB
Maximum Service Temperature1090°C
Weight Calculator

Chemical Composition

C
0 to 0.080%
CR
22 to 24%
NI
12 to 16%
MN
0 to 2.0%
SI
0 to 0.75%
P
0 to 0.045%
S
0 to 0.030%
NB
0 to 1.1%
FE
56 to 66%

Mechanical

Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
39 %
Fatigue Strength
200 MPa
Poisson's Ratio
0.28
Reduction in Area
46 %
Shear Modulus
78 GPa
Shear Strength
390 MPa
Tensile Strength: Ultimate (UTS)
580 MPa
Tensile Strength: Yield (Proof)
230 MPa

Hardness

Brinell Hardness
190
Rockwell B Hardness
84

Physical

Density
7.8 g/cm 3

Thermal

Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
510 °C
Maximum Temperature: Mechanical
1090 °C
Melting Completion (Liquidus)
1420 °C
Melting Onset (Solidus)
1380 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
4.0 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
13 points

Electrical

Electrical Conductivity: Equal Volume
2.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.5 % IACS

Calculated

PREN (Pitting Resistance)
23
Resilience: Ultimate (Unit Rupture Work)
180 MJ/m 3
Resilience: Unit (Modulus of Resilience)
140 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
20 points
Strength to Weight: Bending
20 points

Environmental

Base Metal Price
23 % relative
Embodied Carbon
4.1 kg CO 2 /kg material
Embodied Energy
59 MJ/kg
Embodied Energy
59 MJ/kg 26 x 10 3 BTU/lb
Embodied Water
170 L/kg
Embodied Water
170 L/kg 21 gal/lb
Registered Designations & Aliases
309CbAISI 309CbAISI 309Cb (S30940) Stainless SteelS30940
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 A276 ASTM A276: Standard Specification for Stainless Steel Bars and Shapes

ASTM A479 ASTM A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

ASTM A479 ASTM A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels ASTM A276: Standard Specification for Stainless Steel Bars and Shapes ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

ASTM A959 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels