AISI 204 (S20400) Stainless Steel

Austenitic & General Stainless Steels

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.7g/cm³

Elastic Modulus200GPa

Tensile Strength730MPa

Yield Strength380MPa

Brinell Hardness210HB

Maximum Service Temperature850°C

Weight Calculator

Chemical Composition

0 to 0.030%

15 to 17%

1.5 to 3.0%

7.0 to 9.0%

0 to 1.0%

0.15 to 0.3%

0 to 0.040%

0 to 0.030%

69.6 to 76.4%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

39 %

Fatigue Strength

320 MPa

Poisson's Ratio

0.28

Shear Modulus

77 GPa

Shear Strength

500 MPa

Tensile Strength: Ultimate (UTS)

730 MPa

Tensile Strength: Yield (Proof)

380 MPa

Hardness

Brinell Hardness

210

Rockwell B Hardness

Physical

Density

7.7 g/cm 3

Thermal

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

410 °C

Maximum Temperature: Mechanical

850 °C

Melting Completion (Liquidus)

1410 °C

Melting Onset (Solidus)

1370 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

15 W/m-K

Thermal Diffusivity

4.1 mm 2 /s

Thermal Expansion

17 µm/m-K

Thermal Shock Resistance

16 points

Electrical

Electrical Conductivity: Equal Volume

2.4 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.9 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

240 MJ/m 3

Resilience: Unit (Modulus of Resilience)

360 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

27 points

Strength to Weight: Bending

24 points

Environmental

Base Metal Price

10 % relative

Embodied Carbon

2.4 kg CO 2 /kg material

Embodied Energy

35 MJ/kg

Embodied Energy

35 MJ/kg 15 x 10 3 BTU/lb

Embodied Water

130 L/kg

Embodied Water

130 L/kg 16 gal/lb

Registered Designations & Aliases

204AISI 204AISI 204 (S20400) Stainless SteelS20400

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 A666 ASTM A666: Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar

ASTM A666 ASTM A666: Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar 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