MST Seamless Tube & Pipe

South Lyon mill, South Lyon, Michigan. Seamless pressure pipe and mechanical tube.

CTier 3Process

Address

400 McMunn St, South Lyon, MI 48178

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Parent: Michigan Seamless Tube (private)
Industry: Steel tube mill
People: No figure
Status: Active
Source: dbusiness.com ↗
Verified: 2026-10-11

How tools get used here

Maintenance-driven MRO: pumps, valves, motors, conveyors and shutdown or turnaround work.

Buying signals

40,000+ tons a year; sole U.S. maker of Blue Diamond A106 pipe.

Who buys tools here

Usually the maintenance manager, plant manager, MRO or indirect purchasing, and the tool crib lead. At refineries and mills, maintenance contractors buy a large share as well.

Plants nearby

Straight-line distance between ZIP code areas, so treat it as approximate.

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