AISI 321H (S32109) 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 Temperature940°C

Weight Calculator

Chemical Composition

0.040 to 0.1%

17 to 19%

9.0 to 12%

0 to 2.0%

0 to 0.75%

0 to 0.045%

0 to 0.030%

0 to 0.7%

65.4 to 74%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

40 %

Fatigue Strength

200 MPa

Poisson's Ratio

0.28

Reduction in Area

51 %

Shear Modulus

77 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

480 °C

Maximum Temperature: Mechanical

940 °C

Melting Completion (Liquidus)

1430 °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

17 µm/m-K

Thermal Shock Resistance

12 points

Electrical

Electrical Conductivity: Equal Volume

2.4 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.7 % 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

16 % relative

Embodied Carbon

3.2 kg CO 2 /kg material

Embodied Energy

46 MJ/kg

Embodied Energy

46 MJ/kg 20 x 10 3 BTU/lb

Embodied Water

140 L/kg

Embodied Water

140 L/kg 17 gal/lb

Registered Designations & Aliases

321HAISI 321HAISI 321H (S32109) Stainless SteelS32109

Standards

ASTM A182 ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

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 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 A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels Machining of Stainless Steels and Super Alloys: Traditional and Nontraditional Techniques, Helmi A. Youssef, 2016 ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service 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