316L Nuclear Auxiliary Pump Castings
316L Nuclear Power Plant Auxiliary Pump Casing Castings
Product Overview
Manufactured from ultra-low carbon ZG03Cr17Ni14Mo2 (CF-3M) material, our 316L pump casings meet ASME III and RCC-M nuclear standards for auxiliary systems in both nuclear and conventional islands.
Nuclear Certifications
|
Standard |
Class |
Application |
|
ASME III |
NCA-3800 |
Safety Class 2/3 |
|
RCC-M |
M3301 |
Nuclear Island |
|
GB/T 12727 |
Safety Grade |
Conventional Island |
Key Performance
Nuclear-Grade Purity
S≤0.010%, P≤0.025%
δ-Ferrite FN 0.5-3.0 (Schaeffler Diagram)
Passes ASTM A262 Method E (IGC test)
Seismic Performance
Dynamic load capacity ≥3x design load (IEEE 344)
Fatigue life ≥10⁶ cycles (pressure fluctuation)
Special Processes
VIM melting for low gas content
Precision casting CT6 tolerance
Solution annealing (1050℃±10℃ WQ)
Product Series
▸ Nuclear Island Pumps:
CVS (Chemical & Volume Control System)
EAS (Containment Spray System)
RRA (Residual Heat Removal System)
▸ Conventional Island Pumps:
CEP (Condensate Extraction Pump)
APP (Auxiliary Feedwater Pump)
CRF (Circulation Water Pump)
Technical Data
Size range: DN80-DN1200
Pressure class: ASME 150-900
Temperature: -29℃~350℃
Design life: 60 years
NDT Requirements
100% RT (ASME III NB-2500)
PT (ASME V Art.6)
UT thickness measurement
Certification Package
✓ Heat analysis report (trace elements)
✓ Heat treatment chart (full recording)
✓ 3D inspection report (CMM data)
✓ Welder qualifications (ASME IX)
Note:
Each casting has unique material identification
Radioactive decontamination capability
On-site NDE services available
QA documents bilingual (CN/EN)
FAQ
Q: What distinguishes your centrifugal casting technology?
Q: How does vacuum precision casting benefit product quality?
Q: Can you handle both small and large-volume orders?
Q: Do you offer machining services after casting?
Q: Are you equipped with in-house mold and tooling fabrication?
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