P355QL2 Pressure Vessel Steel Plate
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional p355ql2 pressure vessel steel plate manufacturers and suppliers in China. Welcome to wholesale customized p355ql2 pressure vessel steel plate at competitive price from our factory. Good service and quality products are available.
P355QL2 Pressure Vessel Steel Plate
EN 10028-6 certified quenched & tempered steel plate for cryogenic pressure vessels
P355QL2 Pressure Vessel Alloy Steel Plate Chemical Composition and Mechanical Property
|
Grade |
Chemical Composition (%) |
||||
|
C |
Si |
Mn |
P |
S |
|
|
EN10028-6 P355QL2 |
0.16 |
0.4 |
1.5 |
0.020 |
0.005 |
|
Grade |
Mechanical Property |
||||
|
Tensile Strength (MPa) |
Yield Strength (MPa) |
% Elongation in 2 in. (50mm) min |
Impacting Test Temperature (°C) |
||
|
EN10028-6 P355QL2 |
490-630 |
355 |
22 |
+20, 0, -20, -40, -60 |
|
Key Advantages:
Cryogenic Performance: Maintains 27J Charpy V-notch impact energy at **-60°C**
- **Weldability**: Low CEV (0.42 max) allows welding without preheating below 25mm thickness
- **Certifications**: Complies with PED 2014/68/EU & NACE MR0175 for sour service
Industrial Applications of P355QL2 Steel Plates
1. Energy Sector
- **LNG Storage Tanks**: 9% nickel clad plates for -162°C liquefied natural gas
- **Hydropower Plants**: High-pressure penstocks (up to 50MPa working pressure)
2. Chemical Processing
- **Ammonia Reactors**: ASME Section VIII Div.1 compliant construction
- **Acid Storage Vessels**: Optional HIC resistance per NACE TM0284
3. Specialized Equipment
- **Cryogenic Transport Tanks**: ISO container certification
- **Nuclear Auxiliary Systems**: RCC-M Rx level quality assurance ## Quality Assurance & Testing
- **Non-Destructive Testing**:
- 100% Ultrasonic Testing (EN 10160 Class S3) -
Magnetic Particle Inspection (ASTM E709)
- **Destructive Testing**:
- Through-Thickness Tensile Test (Z35 grade available) - Simulated PWHT (Post Weld Heat Treatment) validation
Why Choose Us as Your P355QL2 Supplier?
- **Fast Delivery**: 30-50 days production, **7 days** for standard sizes (8-100mm thickness)
- **Global Logistics**: FOB Shanghai/Qingdao/Tianjin with optimal container loading
- **Certification Support**: Provide EN 10204 3.2 certificates + third-party SGS/BV reports
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