Product Applicable Range
Tailored for Nuclear Fasteners fasteners with thread specifications ≤M200, these products are optimized for critical, subcritical, supercritical, and ultrasupercritical steam power units in nuclear settings, delivering stability in extreme high-temperature and high-pressure conditions.
Materials and Parameter Table
Employing advanced alloys for nuclear durability, the following parameters align with ASME standards:
|
Material Model |
Main Composition |
Tensile Strength (MPa) |
Operating Temperature (°C) |
Hardness (HRC) |
Application Scenario |
|
A193 B16 |
Cr-Mo-V Alloy |
≥880 |
-20 to 650 |
29-35 |
High-temperature nuclear bolts |
|
21CrMoV5-7 |
Cr-Mo-V Alloy |
≥920 |
-30 to 700 |
31-37 |
Heat-resistant alloy fasteners |
|
X22CrMoV12-1 |
Cr-Mo-V Alloy |
≥900 |
-20 to 650 |
30-36 |
Stainless steel heat bolts |
|
2Cr12NiMoWV |
Cr-Ni-Mo-W-V Alloy |
≥940 |
-30 to 700 |
32-38 |
Nuclear coupling components |
|
GH4169 (Incol718) |
Ni-Cr-Fe Alloy |
≥1220 |
-60 to 900 |
41-48 |
Extreme high-temperature use |
Performance and Application
Performance Features:
Exceptional strength and fatigue resistance, enhanced by reverse engineering for compatibility with leading nuclear turbines, reducing failure rates by 50%
Application Areas:
Ideal for high-pressure, low-pressure connections, cylinder supports, and coupling systems in nuclear power plants. Case Study: Boosted GE nuclear project efficiency by 13% and cut downtime by 20%.
Product Process Flow Framework Diagram
The production process follows a five-step quality system:
Material Selection:
Testing chemical composition and mechanical properties.
01
Heat Treatment Enhancement:
Optimizing alloy structure.
02
Precision Forming:
CNC machining with dimensional checks.
03
Surface Protection:
Anti-corrosion coating application.
04
Comprehensive Testing:
Performance and compatibility validation.
05
15-Step Inspection Process
Inspection Flow Structure (SEO-optimized description):
Step 1
Material Selection - 3 checks: incoming composition analysis, mid-process hardness evaluation, outgoing quality approval.
01
Step 2
Heat Treatment Enhancement - 3 checks: initial temperature control, mid-process structural review, final mechanical testing.
02
Step 3
Precision Forming - 3 checks: initial dimension alignment, mid-process accuracy assessment, final tolerance verification.
03
Step 4
Surface Protection - 3 checks: coating thickness measurement, mid-process corrosion resistance test, final durability assessment.
04
Step 5
Comprehensive Testing - 3 checks: initial performance review, mid-process compatibility check, final 100% quality certification.
05
Total 15 Inspections: Ensures zero defects in nuclear fasteners, enhancing Google ranking for "nuclear fastener quality."
Professional Advantages
Material Availability
Extensive alloy stock for customized nuclear fasteners.
Strong durability
Quality Control: Fully traceable process with 100% pass rate.
Efficiency Improvement
Reduces maintenance costs by 30% and downtime by 20%.
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