ASME SA333 Grade 6 Seamless Carbon Steel Pipe for Low Temperature Service with Required Notch Toughness
YUHONG GROUP specializes in manufacturing ASME-certified carbon steel pipes for critical low-temperature applications. With 30+ years of expertise, our ASME SA333 Grade 6 Seamless Carbon Steel Pipes deliver reliable performance in cryogenic environments down to -45°C.
Chemical Composition Requirements for ASME SA333 Grade 6 Carbon Steel Pipe
| Element | Requirement (%) | Key Notes |
| Carbon (C) | ≤0.30 | Lower carbon improves weldability |
| Manganese (Mn) | 0.29-1.06 | Adjusted per heat treatment |
| Phosphorus (P) | ≤0.025 | Strict control for low-temp toughness |
| Sulfur (S) | ≤0.025 | Minimized for ductility |
| Silicon (Si) | ≥0.10 | Deoxidizer for quality control |
| Nickel (Ni) | ≤0.40 | Controlled for cost efficiency |
| Chromium (Cr) | ≤0.30 | Limited for cryogenic stability |
| Copper (Cu) | ≤0.40 | Prevents hot shortness |
| Vanadium (V) | ≤0.08 | Grain refinement additive |
| Molybdenum (Mo) | ≤0.12 | Trace amounts permitted |
ASME SA333 Grade 6 Mechanical Properties
| Property | Requirement |
| Tensile Strength (min) | 415 MPa (60,000 psi) |
| Yield Strength (min) | 240 MPa (35,000 psi) |
| Elongation (min) | Longitudinal: 30% |
| Transverse: 16.5% |
Quality Assurance
- 100% Non-Destructive Testing: UT/RT per ASME Section V
- Traceability: EN 10204 3.1 certificates with heat number tracking
- Dimensional Precision:
- OD: ±1% or ±0.5mm
- WT: +20%/-12.5%
ASME SA333 Gr.6 Seamless Carbon Steel Pipe - Application Highlights
LNG/LNG Storage & Transportation
- Reliable performance at -45°C for:
- LNG storage tanks
- Cryogenic transfer pipelines
- Regasification terminal piping
Petrochemical Processing
- Ideal for:
- Ethylene/LPG cryogenic piping
- Liquid nitrogen/oxygen delivery systems
- Refinery cold box exchangers
Power Generation
- Critical uses in:
- Nuclear plant auxiliary cooling lines
- Thermal power plant condenser systems
ASME SA333 Gr.6 Seamless Carbon Steel Pipe - Key Application Advantages
1. Guaranteed Low-Temperature Performance
- Certified Charpy V-notch impact ≥20J at -45°C
- Optimized Mn content (0.29-1.06%) ensures ductility in cryogenic service
- Ultra-low P/S (≤0.025%) prevents brittle fracture
2. Industry-Specific Reliability
- LNG Systems: Complies with EN 14620 for storage/transfer
- Petrochemical Plants: Resists thermal cycling in ethylene units
- Power Generation: Meets ASME BPVC Section VIII for condensers
3. Fabrication Advantages
- No preheat required for welding
- Compatible with SMAW/GTAW/SAW processes
- Tight dimensional tolerances
4. Manufacturer Assurance
- ASME-certified production with full traceability
- Custom solutions: Electropolishing (Ra≤0.8μm), VCI packaging
- 30+ years of cryogenic piping expertise
Product Tags:
|
|
ASME SA333 Grade 6 Seamless Carbon Steel Pipe for Low Temperature Service with Required Notch Toughness Images
|
