1. Standard: SANS 719
2. Grade: C
3. Type: Electric Resistance Welded (ERW)
4. Size Range:
- Outer Diameter: 10mm to 610mm
- Wall Thickness: 1.6mm to 12.7mm
5. Length: 6 meters, or as required
6. Ends: Plain end, beveled end
7. Surface Treatment:
- Black (self-colored)
- Oiled
- Galvanized
- Painted
8. Applications: Water, sewage, general conveyance of fluids
9. Chemical Composition:
- Carbon (C): 0.28% max
- Manganese (Mn): 1.25% max
- Phosphorus (P): 0.040% max
- Sulfur (S): 0.020% max
- Silcon (Si): 0.04 % max. Or 0.135 % to 0.25 %
10. Mechanical Properties:
- Tensile Strength: 414MPa min
- Yield Strength: 290 MPa min
- Elongation: 9266 divided by numerical value of actual UTS
11. Manufacturing Process:
- The pipe is manufactured using cold-formed and high-frequency induction welded (HFIW) process.
- The strip is formed into a tubular shape and welded longitudinally using high-frequency induction welding.
12. Inspection and Testing:
- Chemical analysis of the raw material
- Transverse tensile test to ensure mechanical properties comply with specifications
- Flattening test to ensure the pipe's ability to withstand deformation
- Root bend test (electric fusion welds) to ensure the pipe's flexibility and integrity
- Hydrostatic test to ensure the pipe's leak-tightness
13. Non-Destructive Testing (NDT):
- Ultrasonic testing (UT)
- Eddy current testing (ET)
14. Certification:
- Mill test certificate (MTC) according to EN 10204/3.1
- Third-party inspection (optional)
15. Packaging:
- In bundles
- Plastic caps on both ends
- Waterproof paper or steel sheet cover
- Marking: as required (including Manufacturer,grade, size, standard, heat number, Lot Number etc.)
16. Delivery Condition:
- As rolled
- Normalized
- Normalized rolled
17. Marking:
- Each pipe should be legibly marked with the following information:
- Manufacturer's name or trademark
- SANS 719 Grade C
- Size (outer diameter and wall thickness)
- Heat number or batch number
- Date of manufacture
- Inspection and test certificate details
18. Special Requirements:
- Pipes can be supplied with special coatings or linings for specific applications (e.g., epoxy coating for corrosion resistance).
19. Additional Tests (If Required):
- Charpy V-notch impact test
- Hardness test
- Macrostructure examination
- Microstructure examination
20.Tolerance:
-Outside Diameter
-Wall thickness
The wall thickness of a pipe shall, subject to a tolerance of +10 % or -8 %, be one of the relevant values given in columns 3 to 6 of below table, unless otherwise agreed upon between the manufacturer and the purchaser.
-Straightness
Any deviation of a pipe from a straight line, shall not exceed 0,2 % of the length of the pipe.
Any out-of-roundness (other than that caused by sag), of pipes of outside diameter greater than 500 mm shall not exceed 1 % of the outside diameter (i.e.maximum ovality 2 %) or 6 mm, whichever is less.
Please note that this detailed data sheet provides comprehensive information about SANS 719 Grade C pipes. Specific requirements may vary based on the project and the exact specification of the pipe required.
Post time: Apr-28-2024