Stainless Steel 304 – Composition, Properties and Applications of Stainless Steel 304 by Alloy Wire International

Topics Covered

Background
Stainless Steel 304
Chemical Composition of Steinless Steel 304
Typical Properties of Stainless Steel 304
Properties of Supplied Materials and Heat Treated Materials
Equivalent Materials
Applications of Stainless Steel 304

Background

Alloy Wire International Ltd. is a U.K. wire manufacturer specialising in the production of high performance alloys, mainly Nickel Alloys, but including Cobalt and Titanium Alloys.

These alloys might be used in any environment that requires resistance to heat and corrosion but where the mechanical properties of the metal must be retained.

Stainless Steel 304

Stainless Steel 304, like 302, has good mechanical properties and corrosion resistance.

Chemical Composition of Steinless Steel 304

The compositional range for Stainless Steel 304 is provided in the table below.

Element

Content

Cr

17 - 19 %

Ni

8 - 11 %

Fe

Balance

Typical Properties of Stainless Steel 304

Typical properties of Stainless Steel 304 are covered in the following table.

Property

Metric

Imperial

Density

8.0 g/cm3

0.289 lb/in3

Melting Point

1454°C

2650°F

Co-Efficient of Expansion

18.2ìm/m.°C
(20-100 °C)

10.1x10-6 in/in.°F
(70-212 °F)

Modulus of Rigidity

70.3 kN/mm2

10196 ksi

Modulus of Elasticity

187.5 kN/mm2

27195 ksi

Properties of Supplied Materials and Heat Treated Materials

Condition of Supply

Heat Treatment (After Forming)

Annealed/Spring Temper

Stress relieve at 250°C (480°F) for 1 hour and air cool.

Condition

Approx Tensile Strength

Approx Service Temp.

Annealed

600 - 800 N/mm2

87 - 176 ksi

-200 to +300°C

-330 to +570°F

Spring Temper

1300 - 2200 N/mm2

189-319 ksi

-200 to +300°C

-330 to +570°F

Relevant Standards

Stainless Steel 304 is covered by the following standards:

  • BS 970
  • BS 1554
  • BS 2056
  • ASTM A313

Equivalent Materials

Stainless Steel 304 is equivalent to alloys denated:

  • W.NR 1.4301
  • W.NR 1.4303
  • W.NR 1.4306
  • UNS S30400
  • AWS 161

Applications of Stainless Steel 304

Applications of Stainless Steel 304 include:

  • Springs
  • Wire Gauze
  • Wire Cloth

Source: Alloy Wire International

Date Added: Feb 5, 2010 | Updated: Jun 11, 2013
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