AISI 309S (S30908) Stainless Steel

Austenitic & General Stainless Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.8g/cm³

Elastic Modulus200GPa

Tensile Strength580MPa

Yield Strength230MPa

Brinell Hardness190HB

Maximum Service Temperature1080°C

Weight Calculator

Chemical Composition

0 to 0.080%

22 to 24%

12 to 15%

0 to 2.0%

0 to 0.75%

0 to 0.045%

0 to 0.030%

58.1 to 66%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

42 %

Fatigue Strength

210 MPa

Poisson's Ratio

0.27

Reduction in Area

51 %

Shear Modulus

78 GPa

Shear Strength

400 MPa

Tensile Strength: Ultimate (UTS)

580 MPa

Tensile Strength: Yield (Proof)

230 MPa

Hardness

Brinell Hardness

190

Rockwell B Hardness

Physical

Density

7.8 g/cm 3

Thermal

Latent Heat of Fusion

290 J/g

Maximum Temperature: Corrosion

440 °C

Maximum Temperature: Mechanical

1080 °C

Melting Completion (Liquidus)

1420 °C

Melting Onset (Solidus)

1370 °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)

Resilience: Ultimate (Unit Rupture Work)

190 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

21 points

Strength to Weight: Bending

20 points

Environmental

Base Metal Price

19 % relative

Embodied Carbon

3.6 kg CO 2 /kg material

Embodied Energy

51 MJ/kg

Embodied Energy

51 MJ/kg 22 x 10 3 BTU/lb

Embodied Water

170 L/kg

Embodied Water

170 L/kg 20 gal/lb

Registered Designations & Aliases

309SAISI 309SAISI 309S (S30908) Stainless SteelS30908

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 A473 ASTM A473: Standard Specification for Stainless Steel Forgings

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

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

EN 10095 EN 10095: Heat resisting steels and nickel alloys

EN 10095 EN 10095: Heat resisting steels and nickel alloys ASTM A473: Standard Specification for Stainless Steel Forgings ASTM A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels Creep-Resistant Steels, Fujio Abe et al. (editors), 2008 ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels