Formed Steel Frames - Sheet Metal Fabrication

Formed Steel Frames

Press-formed channel and angle frames, riveted or welded, square checked on the CMM.

Frames formed from sheet rather than cut from solid, which is lighter and cheaper once the quantity justifies the forming tools. Squareness is measured on the finished frame, not assumed from the parts.

±0.5 mm / m1.5–6.0 mmRiveted or welded -±0.2 mm
Lead Time

3–5 weeks

Min Order

25 pieces

Certifications

ISO 9001:2015

Technical Specifications

ParameterValueUnit
Squareness±0.5mm / m
Thickness1.5–6.0mm
JointsRiveted or welded-
Hole position±0.2mm
Load (as designed)To 5,000N
Max frame2500 × 1200 × 800mm

Available Materials

  • Mild steel DC01
  • High-strength steel S420MC
  • Galvanised steel DX51D
  • Stainless 304

Typical Applications

  • Equipment base frames
  • Panel mounting frames
  • Rack structures
  • Doors and gates
  • Support legs

Surface Finishes

  • Powder coat
  • Zinc plating
  • Painted
  • Hot-dip galvanising
  • As-formed

Industries Served

  • Industrial Equipment
  • Warehousing
  • Automation
  • Energy & Oil & Gas
  • Rail

What drives the price of this part

Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.

Tolerance
Hole position at ±0.2 mm is the tightest callout this family carries. Tightening a callout is a process decision, not a machining decision: below the standard ±0.005 mm the work moves to grinding or jig boring, and the price moves with it.
Part size
Thickness at 1.5–6.0 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
Material
The first material listed, Stainless Steel 304 / 304L, rates 4/10 on our machinability scale at 201 HB. On this shop's scale a harder alloy means slower passes and more tool changes, and that is cycle time the quote has to carry.
Order size
Minimum order is 25 pieces, where setup and tooling are amortised across the batch and per-part cost settles around cycle time and material. Below that quantity the same part costs more per piece, not less.

See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.

How these parts are inspected

Matched to the callouts above and the instruments actually on the floor.

  • Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
  • Dimensional report against the drawing, with a 100% check on critical features rather than a sample
  • Certificate of conformance and the mill certificate with every shipment
  • Bore gauges and an optical comparator for hole position and edge form

The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.

Questions buyers ask

Formed frame or welded steel section?
Formed for anything above a few hundred units, because the tooling pays back and the parts nest better in a crate. Welded section is quicker to start and easier to modify.

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