316 Stainless Steel Seawater Pump Housing Castings
316 Stainless Steel Seawater Pump Casing Castings
Product Overview
Manufactured from premium ZG03Cr17Ni14Mo2 (CF-3M) material, our 316 stainless steel pump casings deliver exceptional chloride resistance for seawater applications, compliant with ASTM A351 and EN 10213 standards.
Material Grades (Global Standards)
|
China GB |
ASTM |
EN |
JIS |
Characteristics |
|
ZG03Cr17Ni14Mo2 |
CF-3M |
1.4409 |
SCS16A |
Low-carbon IGC resistant |
|
ZG03Cr17Ni12Mo2N |
CF-8M |
1.4408 |
SCS13A |
Nitrogen-strengthened |
|
ZG03Cr17Ni14Mo2Cu2 |
- |
1.4409 |
- |
Acidic seawater resistant |
Key Features
Superior Corrosion Resistance
CPT ≥35℃ (ASTM G48)
Seawater corrosion rate ≤0.1mm/year
Resists chloride SCC (Cl⁻≤20000ppm)
Precision Casting
Dimensional accuracy CT7-8
Min. wall thickness 6mm
Flow path surface Ra≤6.3μm (electropolishable to Ra≤0.8μm)
Special Treatments
Solution annealing (1050℃ WQ)
Stellite overlay on sealing faces
Anti-fouling coating (optional)
Technical Parameters
Size range: DN50-DN800
Pressure rating: PN10-PN40 (ANSI 150#-300#)
Temperature: -20℃~200℃
Media velocity: ≤8m/s
Applications
✓ SWRO high-pressure pumps
✓ Ship ballast pumps
✓ Offshore cooling pumps
✓ Coastal power plant circulation
✓ Aquaculture systems
Quality Control
Material Tests:
✓ OES analysis (Mo≥2.5%)
✓ Ferrite content (FN3-8)
NDT:
✓ PT (ASTM E165)
✓ UT thickness measurement
Performance Tests:
✓ Salt spray test (5000hrs)
✓ Hydrostatic test (1.5x design pressure)
Certifications
✓ DNV-GL/ABS/CCS Classification
✓ ASTM A351 Certification
✓ PED 2014/68/EU
✓ NORSOK M-650
Note:
CFD-optimized hydraulic design
Emergency replacement service
Full material traceability
Technical documentation package
FAQ
Q: Do you export products internationally?
Q: What are your typical delivery times?
Q: Can you handle custom packaging and shipping?
Q: What trade terms do you support?
Q: Can I visit your factory before placing an order?
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