# Structural Steel A36

> The structural workhorse: cheapest path to welded frames, bases and brackets.

- Category: Carbon, Alloy & Tool Steels → carbon-steel
- HTML page: https://fabvector.com/materials/carbon-steel-a36 (Portuguese: https://fabvector.com/pt/materials/carbon-steel-a36)
- Price index: $ (1–5, 6061-T6 = $)

## Mechanical properties (typical values, not certified minimums)

| Property | Value |
|---|---|
| Tensile strength | 400–550 MPa |
| Yield strength | 250 MPa (min) |
| Hardness | ~120 HB |
| Density | 7.85 g/cm³ |
| Machinability | ★★★★☆ (4/5) |
| Corrosion resistance | ★☆☆☆☆ (1/5) |

## When to choose it

For welded structure where the spec is "strong enough and cheap": excellent weldability, wide plate availability, and machining only where mounting faces and holes need it.

## When to look elsewhere

Hot-rolled scale and loose composition make it wrong for precision or hardened parts — use 1018 cold-drawn for clean machining stock, 1045/4140 when strength or heat treatment matters.

## Typical applications

- Welded machine bases and frames
- Equipment skids and mounting plates
- Non-precision structural brackets

## Compatible surface finishes

- [As-Machined](https://fabvector.com/md/finishes/as-machined)
- [Black Oxide](https://fabvector.com/md/finishes/black-oxide)
- [Zinc Plating](https://fabvector.com/md/finishes/zinc-plating)
- [Powder Coating](https://fabvector.com/md/finishes/powder-coating)
- [Wet Painting](https://fabvector.com/md/finishes/wet-painting)
- [Laser Marking](https://fabvector.com/md/finishes/laser-marking)

Industries: industrial-automation, energy, automotive · Instant quote: https://fabvector.com/quote