Furnace & High Temperature Parts

Micron produce a vast range of castings for high temperature performance applications.

Castings for furnace fixtures, rollers, nozzles, muffles & grates. Pouring spouts, launders, liners, mixer paddles and rabble blades.

Radiant tube supports for oil refinery furnaces.

High temperature tools and dies for superplastic forming and autoclave composite pressings.

Heat Resisting, High Alloy Steels BS3100:1991

Compositional Analysis %
GradeSYMBOLASTM A297CSiMnPSCrMoNiSupply Condition
302C35 8/18 HF 0.4 2.0 2.0 0.05 0.05 17 - 22 1.5 6 - 10 As Cast
309C30 12/25 HH 0.5 2.5 2.0 0.05 0.05 22 - 27 1.5 10 - 14
310C45 20/25 HK  0.5 3.0 2.0 0.05 0.05 22 - 27 1.5 17 - 22
311C11 25/20 HN 0.5 3.0 2.0 0.05 0.05 17 - 23 1.5 23 - 28
330C12 37/18 HT 0.75 3.0 2.0 0.05 0.05 13 - 20 1.5 30 - 40
331C60 40/20 HU 0.75 3.0 2.0 0.05 0.05 15 - 25 1.5 36 - 46
334C11 55/18 HW 0.75 3.0 2.0 0.05 0.05 10 - 20 1.5 55 - 65

Composition % is maximum unless shown otherwise

Specialist Alloys not shown above:

TECHNICAL DATA - ASTM B753 Alloy T36

A 36% nickel-iron alloy possessing a rate of thermal expansion approximately one-tenth that of carbon steel at temperatures up to 205°C

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TECHNICAL DATA - 22HT

A Nickel Chromium Tungsten Alloy for use at high temperatures.

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All specifications and material data in this site is intended as a reference guide only and not intended to replace that shown in national or international standards to which full reference should always be made. Foreign equivalents are approximate and some modifications may be necessary to comply fully. Micron Alloy Castings assume no responsibility for errors in, misinterpretation of, the information in this web site or in its use.