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High-Temp Semi-Steel / Gray Iron Wheels

This collection holds High-Temp Semi-Steel / Gray Iron Wheels with semi steel treads, made to replace worn wheels on carts, dollies, racks, and equipment. Wheels in this collection range from 300 to 2,500 lb per wheel. Wheels in this category range from 4 up to 12 inches in diameter with 1-1/4 to 3 in tread widths. Semi steel (gray iron) rolls with low effort and shrugs off debris. It is loud and can mark finished floors. Match the bore, hub length, diameter, and tread width before you order. Order the axle and spacers if the old ones are worn. Read the listing for the exact wheel size, overall height, and mount shown. Confirm the load rating printed on the title before you order. Measure the old wheel or caster before you buy. Check the floor type and the heaviest load the cart will carry before you choose. Semi steel aisle: semi steel casters. Caster hub: heavy duty casters.

High-temp semi-steel / gray iron wheels by tread

Tread Core Wheel sizes Rated per wheel Listed temperature Where it fits
Semi-steel Steel 4 to 12 in 300 to 2,500 lb -45°F to 600°F rough floors, heat and heavy loads

Ratings are for single wheels of high-temp semi-steel / gray iron wheels, from product fields [S1].

Wheel sizes

Wheel Treads Rated
4 x 1-1/4 in semi-steel 300 lb
4 x 2 in semi-steel 700 lb
5 x 2 in semi-steel 1,000 lb
6 x 2 in semi-steel 1,200 lb
6 x 3 in semi-steel 2,500 lb
8 x 2 in semi-steel 1,400 to 2,500 lb
10 x 3 in semi-steel 2,500 lb
12 x 3 in semi-steel 2,500 lb

Choosing high-temp semi-steel / gray iron wheels

  1. Load: plan on three wheels carrying a four-wheel cart [S2]; high-temp semi-steel / gray iron wheels rated 2,500 lb each then carry about 7,500 lb.
  2. Floor: on high-temp semi-steel / gray iron wheels, semi-steel suits smooth concrete and heavy loads, but is loud and hard on tile and wood.
  3. Heat: among high-temp semi-steel / gray iron wheels, the highest listed range is -45°F to 600°F on semi-steel; check the temperature field on each listing before oven or hot-room use.

High-temp semi-steel / gray iron wheels questions

How much weight can high-temp semi-steel / gray iron wheels carry?

Single high-temp semi-steel / gray iron wheels are rated 300 to 2,500 lb; most fall between 1,000 and 2,500 lb.

What wheel material is most common on high-temp semi-steel / gray iron wheels?

Semi-steel leads on high-temp semi-steel / gray iron wheels, rated 300 to 2,500 lb per wheel.

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.
  • [S2] Preferred Equipment casters and wheels quick guide PDF (prefeq.com): load sizing on one less caster, wheel types and floor notes.

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