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 920O C

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