316L Marine Valve Castings
316L Marine Valve Castings
Product Overview
Manufactured from ultra-low carbon ZG03Cr17Ni14Mo2 (CF-3M) material, our 316L valve castings comply with DNV-GL/ABS/CCS standards for seawater and ballast water systems.
Key Features
✔ Enhanced Corrosion Resistance
CPT ≥40℃ (ASTM G48)
Seawater corrosion rate ≤0.08mm/year
Optional anti-fouling treatment
✔ Marine Certifications
DNV-GL/ABS/CCS Type Approved
IMO BWMC Compliance
MED 2014/90/EU Certified
Material Standards
|
Parameter |
China GB |
ASTM CF-3M |
EN 1.4409 |
|
C≤ |
0.03% |
0.03% |
0.03% |
|
Cr |
16.0-18.0% |
16.0-18.0% |
16.5-18.5% |
|
Ni |
12.0-15.0% |
12.0-15.0% |
10.0-13.0% |
|
Mo |
2.0-3.0% |
2.0-3.0% |
2.0-2.5% |
|
PREN* |
≥35 |
≥35 |
≥35 |
*PREN = %Cr + 3.3×%Mo + 16×%N
Product Series
▸ Globe/Gate Valves
Body/Cover: 316L integral casting
Stem: 17-4PH precipitation hardening
Seat: Stellite 6 overlay
▸ Ball/Butterfly Valves
Body: 316L+EP (Electropolished)
Ball/Disc: Nitrogen-enhanced 316L
Seat: PTFE/Metal-to-metal optional
Special Processes
Solution annealing (1050℃ WQ)
Precision grinding (Ra≤0.4μm)
HVOF WC-Co coating
Technical Data
Pressure: PN10-PN40 (ANSI 150#-300#)
Size: DN15-DN600
Media: Seawater/Brine/Oil-gas mixture
Temperature: -29℃~200℃
Quality Assurance
Material Tests:
✓ PMI (Positive Material Identification)
✓ Ferrite content (FN≤0.5)
✓ IGC test (ASTM A262 Method E)
Product Tests:
✓ 100% RT (EN 12517-2 Class B)
✓ Helium leak test
✓ Simulated seawater cycling test
Certification Package
✓ Material Test Reports (EN 10204 3.1)
✓ NACE MR0175/ISO 15156 (SSC Resistance)
✓ IBR Certification (For Boiler Valves)
✓ Non-Destructive Testing Reports
Note:
All castings are traceable to heat number
Optional X-ray documentation
Emergency spare parts service
Technical support for installation
FAQ
Q: Do you provide technical support after delivery?
Q: Can you help with installation guidance?
Q: What if I receive a defective part?
Q: Do you offer long-term supply agreements?
Q: How do you handle urgent orders?
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