Stainless Steel Alloy 304-H

Type 304-H is a T-300 series, low-carbon austenitic stainless steel alloy. Type 304-H is the most common grade of stainless steel; you may know it as the classic 18/8 stainless steel or A2. Because of its popularity, the versatile and widely used Type 304-H is found in the manufacturing of:

  • Shafts
  • Valve bodies
  • Valve trim
  • Pans and cooking tools for the food industry
  • Boilers
  • Pipelines
  • Heat Exchangers
  • Cooling towers
  • Steam exhausts
  • Electric generation plants
  • Condensers

Type 304-H retains its popularity because of its unique properties that include:

  • Good oxidation resistance in continuous service to 920C
  • High tensile yield strength
  • Short and long term creep strength
  • Resistance to corrosion from oxidation and organic acids

To be considered Type 304-H stainless steel, an alloy must contain a specific combination of chemical properties. These include:

  • Cr 18-20%
  • Ni 8-10.5%
  • C 0.04%-0.10%
  • Si 0.75 max
  • Mn 2% max
  • P 0.45% max
  • N 0.10% max

Type 304-H stainless steel is available from Continental Steel in plate, round bar, flat bar, tube, and more. All of our Type 304-H stainless steel meets ASTM, ASMW, EN, and DIN standards.

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