Angle

Angle is the most widely used section: 119 active SKU. Used wherever a light, rigid section is needed: trusses, rafter systems, frames, fences, masts, supports.

Classification & types

Equal-leg angle (GOST 8509-93)

Both legs of equal length. Sizes from 20×20×3 to 200×200×30. Fast-movers — 50×50×5, 75×75×6, 100×100×8.

Unequal-leg angle (GOST 8510-86)

Legs of different length. Used in trusses with asymmetric loads, monolithic steel structures. Sizes 25×16 — 250×160.

Size range & weight

Size, mm	Leg thickness, mm	Weight 1 m, kg	Application
25×25	3—4	1.12—1.46	Light frames, trim
40×40	3—5	1.85—3.01	Fencing
50×50	4—6	3.05—4.47	Standard frames
63×63	4—8	3.90—7.55	Trusses, rafters
75×75	5—10	5.80—11.18	Load-bearing structures
100×100	6—14	9.30—21.01	Heavy frames, masts
125×125	8—14	15.46—26.53	Industrial trestles
160×160	10—20	24.67—47.38	Supports, comms towers
200×200	12—30	37.15—88.57	Heavy bridge structures

Selection guide

Fences, opening trim — equal-leg 25×25 — 50×50
Trusses and rafter systems for light buildings — equal-leg 50×50 — 75×75
Load-bearing frames, supports, masts — equal-leg 75×75 — 125×125
Industrial trestles, comms towers, power-line supports — 125×125 and larger
Trusses with asymmetric load — unequal-leg by calculation

Shipping documents

Factory certificate with steel grade St3 / 09G2S, chemistry and mechanical properties. For batches destined for cold-resistant structures — KCV impact toughness at −40°C.

Storage, acceptance, transport

Stack on supports. 12 m long lengths — sling from both sides on unloading. When welding — degrease the seam zone.

FAQ

Q. Which angle for a 2 m profiled fence?

For a light fence with corrugated sheeting — equal-leg 40×40×3 or 50×50×4. For a fence with heavy cladding (metal palings, wrought) — 50×50×5 or 60×60×5.

Q. How does “A” angle differ from “B” on a drawing?

“A” — precise rolling with tolerances per GOST. “B” — regular, with relaxed tolerances and cheaper. For critical structures choose A, for fences and auxiliary tasks B is enough.