Alloy Grade / UNS: HH

  • Overview

    This heat resistant stainless steel alloy is very sensitive to composition balance, containing enough chromium for scaling resistance at high temperature.

  • Typical Uses

    Convection furnace components, grate bars, rabble arms, radiant tubes, refractory support hardware.

  • MetalTek Grade

    MTEK 25-12

Similar Specifications

Cast UNS: J93503

Wrought UNS: S30900

Wrought Grade: 309

Cast Grade: HH

Cast ASTM: A297, A608

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.20-0.50

Chromium: 24-28

Manganese: 2

Iron: n/a

Copper: n/a

Nickel: 11.0-14.0

Lead: n/a

Tin: n/a

Silicon: 2

Zinc: n/a

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Not Heat Treated