AISI 348H (S34809) 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 Hardness180HB

Maximum Service Temperature940°C

Weight Calculator

Chemical Composition

0.040 to 0.1%

17 to 19%

9.0 to 13%

0 to 2.0%

0 to 0.75%

0 to 0.045%

0 to 0.030%

0.32 to 1.0%

0 to 0.2%

0 to 0.1%

63.8 to 73.6%

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

180

Rockwell B Hardness

Physical

Density

7.8 g/cm 3

Thermal

Latent Heat of Fusion

290 J/g

Maximum Temperature: Corrosion

500 °C

Maximum Temperature: Mechanical

940 °C

Melting Completion (Liquidus)

1430 °C

Melting Onset (Solidus)

1390 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

15 W/m-K

Thermal Diffusivity

4.1 mm 2 /s

Thermal Expansion

16 µm/m-K

Thermal Shock Resistance

13 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

20 % relative

Embodied Carbon

3.9 kg CO 2 /kg material

Embodied Energy

56 MJ/kg

Embodied Energy

56 MJ/kg 24 x 10 3 BTU/lb

Embodied Water

150 L/kg

Embodied Water

150 L/kg 17 gal/lb

Registered Designations & Aliases

348HAISI 348HAISI 348H (S34809) Stainless SteelS34809

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 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 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: 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

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