Carbon steel pipe fittings are essential components in piping systems, connecting pipes and enabling directional changes (such as 90-degree turns). The mechanical properties of carbon steel primarily depend on its carbon content—higher carbon levels increase hardness and strength but reduce plasticity.
What is Carbon Steel?
Carbon steel, also known as plain carbon steel, is an iron-carbon alloy with less than 2% carbon content (WC). It typically contains minimal alloying elements, making it cost-effective while maintaining excellent structural properties.
Classification of Carbon Steel for Pipe Fittings
1. By Carbon Content
The carbon percentage directly impacts the material's performance:
- Low Carbon Steel (≤ 0.25% C) – Good ductility, weldability, and formability. Common in construction and automotive parts.
- Medium Carbon Steel (0.25%–0.6% C) – Balanced strength and toughness, used in machinery and structural components.
- High Carbon Steel (> 0.6% C) – High hardness and wear resistance, ideal for cutting tools and springs.
2. By Quality (Impurity Levels)
- Ordinary Carbon Steel – Contains higher sulfur (S ≤ 0.055%) and phosphorus (P ≤ 0.045%).
- High-Quality Carbon Steel – Lower impurities (S ≤ 0.040%, P ≤ 0.040%), better for precision applications.
- Premium-Quality Carbon Steel – Ultra-low impurities (S ≤ 0.030%, P ≤ 0.035%), used in critical engineering projects.
3. By Application
- Carbon Structural Steel – Used in construction, bridges, ships, and machinery.
- Carbon Tool Steel – Ideal for cutting tools, molds, and measuring instruments.
- Free-Cutting Structural Steel – Enhances machinability for automated production.
Key Properties of Carbon Steel Pipe Fittings
- Higher Carbon = Greater Hardness & Strength
- Lower Carbon = Better Plasticity & Weldability
- Durable & Cost-Effective for industrial use
Common Uses of Carbon Steel Pipe Fittings
- Connecting pipes of the same diameter in plumbing and industrial systems.
- Facilitating 90-degree turns in pipelines.
- Applications in oil & gas, construction, and manufacturing.
The above are the characteristics of carbon steel. If you have any needs, please contact us.
