Production Standard | Chemical Composition | Physical & Mechanical Properties
Steel angle — is an L-shaped steel profile widely used in construction and metal structures. It is typically applied as a support, frame, and connecting element. Depending on the side dimensions, it comes in 2 types: equal-leg angle and unequal-leg angle.
Production Standard:
- GOST 8509-93 — equal-leg angle
- GOST 8510-93 — unequal-leg angle
Chemical Composition (%):
- St3, St20, St37
- S235, S275, S355 (according to EN standard)
Steel angle is typically made of low-carbon steel.
Typical chemical composition (%):
| Element | Quantity (%) | Effect |
|---|---|---|
| Carbon (C) | 0.14-0.22 | Provides strength, lower amount makes steel elastic |
| Manganese (Mn) | 0.40-0.65 | Increases strength and impact resistance |
| Silicon (Si) | ≤ 0.30 | Deoxidizer, increases strength |
| Sulfur (S) | ≤ 0.05 | Excess may cause brittleness |
| Phosphorus (P) | ≤ 0.05 | Excess may cause cold brittleness |
| Iron (Fe) | Remainder | Base metal |
📌 Due to the low carbon content, its weldability is good.
Physical Properties:
| Property | Value |
|---|---|
| Density | ≈ 7850 kg/m 3 |
| Modulus of elasticity (E) | ≈ 210 GPa |
| Thermal conductivity | ≈ 50 W/m*K |
| Linear thermal expansion | 12×10 -6 1/°C |
| Electrical conductivity | Moderate |
Mechanical Properties:
| Property | Indicator |
|---|---|
| Yield strength | ≥ 235 MPa |
| Tensile strength | 360-510 MPa |
| Elongation | ≥ 22% |
| Impact resistance | Good |
| Weldability | High |
Application Areas | Advantages | Limitations | Terms of Sale
Application Areas:
-
Construction
- Metal frameworks and support systems
- Columns, frames, trusses
- Staircase structures
- Roofing skeletal structures
-
Industry and Manufacturing
- Machine and mechanism frameworks
- Conveyor and equipment supports
- Metal platforms
-
Household and Light Structures
- Door and gate frames
- Fences and railings
- Shelving and storage systems
-
Infrastructure
- Bridge elements
- Supports for power poles
- Metal frameworks for billboards
Advantages:
-
High Strength
- Good load-bearing capacity
-
Simple Design
- Easy assembly and engineering design
-
Good Weldability
- Does not require additional fasteners
-
Affordable and Accessible
- Cost-effective compared to other profiles
-
Universal Use
- As both load-bearing and auxiliary element
-
Durable
- Serves long-term with proper protection
Limitations:
-
Corrosion Susceptibility
- Can rust in open environments
- Painting, galvanization, or other coating required
-
Deformation Risk Under High Loads
- Bending is possible if thickness is chosen incorrectly
-
Aesthetic Limitations
- Additional finishing required for decorative purposes
-
Bending and Torsion
- Additional reinforcement may be required in long angles
-
May Require Alternatives for Heavy Structures
- In some cases, I-beam or channel is more appropriate
Terms of Sale:
- Angle price is determined by size, thickness, and manufacturer. Prices are quoted per meter.
- Angle demand is passed as quantity (pieces), length is 6m or 12m.
- Relevant documents are provided to the buyer upon request (contract, acceptance act, invoice, waybill, weight slip, cash receipt, laboratory test analysis, certificate, etc.).
