SA179 carbon pipe Material and Composition
The material is low-carbon steel (carbon content 0.06%-0.18%) with clean impurity levels (sulfur and phosphorus ≤0.035%). It achieves a densified microstructure through cold-drawing, resulting in excellent corrosion resistance and high thermal conductivity efficiency.
SA179 Seamless steel pipe Specifications
Outer Diameter: Φ6-102mm
Wall Thickness: 0.5-12.7mm (tolerance ±10%)
Maximum Single Length: 22 meters
Available Conditions: Annealed or Bright Annealed
SA179 Hot rolled pipe Key Performance Indicators
Hardness: ≤72 HRB
Thermal Conductivity: 49 W/(m·K)
Hydrostatic Test Pressure: ≥5 MPa (standard test conditions)
SA179 boiler tube Special Processing Characteristics
Expansion Rate: ≥15% without cracks (outer diameter expansion)
Welding Recommendation: ER70S-6 welding wire, heat input ≤25 kJ/cm
Key Features
High-Temperature Resistance: Long-term service up to 450℃, short-term up to 480℃.
Excellent Thermal Conductivity: Thermal conductivity ≥45 W/(m·K), ideal for heat exchange applications.
Superior Corrosion Resistance: Resistant to various media after special treatment.
High Strength and Good Plasticity: Tensile strength ≥325 MPa, elongation ≥35%.
Precise Dimensional Control: Outer diameter tolerance ±0.10mm, wall thickness tolerance ±10%.
Production Process and Testing
Production Process: Cold-drawn with final heat treatment ≥650℃ (1200°F).
Testing Requirements: Hydrostatic test or non-destructive electrical test (per buyer's requirement), chemical composition analysis, hardness test, etc. Each batch undergoes sampling inspection per standard.