310S Petrochemical Cracker Castings
Product Name: 310S Stainless Steel Petrochemical Cracking Furnace Castings
(High-Temperature Resistant Components for Severe Service Conditions)
Product Overview
Manufactured from ZG45Cr25Ni20Si2 (310S equivalent) alloy through precision casting, our cracking furnace components are engineered for extreme environments in ethylene pyrolysis and refinery applications. These castings deliver:
Continuous service up to 1150°C in oxidizing/carburizing atmospheres
2-3x longer lifespan than standard HK40 alloys in thermal cycling conditions
Full customization of geometries for specific reactor designs
Key Features
1. Critical Performance Advantages
Carburization resistance: <0.5mm penetration after 2 years in hydrocarbon streams
Thermal shock resistance: Withstands 50+ rapid quench cycles (1100°C→water)
Creep strength: 18MPa stress rupture at 1000°C (10,000h)
2. Custom Engineering Solutions
Tube supports: Optimized for minimal heat shadowing
Coil hangers: FEA-designed stress distribution
Transition pieces: Customized expansion compensation
3. Material Enhancements
High-purity variants: S/P<0.015% for reduced coking
Micro-alloyed grades: Nb/Ti modifications available
Surface treatments: Aluminizing for sulfidation resistance
Technical Specifications
|
Parameter |
Standard Value |
Test Method |
|
Max Operating Temperature |
1150°C (continuous) |
ASTM E228 |
|
Carburization Rate |
<0.2mm/year @950°C |
ASTM G79 |
|
High-Temp Tensile Strength |
85MPa @1000°C |
ISO 204 |
|
Thermal Conductivity |
14.5 W/m·K @800°C |
ASTM E1225 |
Product Range
1. Radiant Section Components
Tube hangers & guides
Burner quarls
Shield plates
2. Convection Section Parts
Finned tube supports
Damper linkages
Sootblower components
3. Special Applications
Transfer line elbows
Cyclone separators
Decoking door frames
Quality Assurance
Per-cast validation:
Chemical analysis (OES)
High-temperature tensile testing
Microstructure examination (ASTM E3)
Dimensional control:
Laser scanning for contour verification
Wall thickness UT mapping
Certifications:
ASME Section VIII Div.1
NACE MR0175/MR0103
API 530 compliance
Customization Process
Application Review
Process gas composition analysis
Thermal profile mapping
Engineering Phase
Creep life calculation per API 530
Thermal expansion modeling
Production
Lead time: 10-14 weeks for custom designs
Optional accelerated delivery (+30% fee)
Delivery Package
Material test reports (EN 10204 3.2)
Installation drawings with thermal growth data
Recommended maintenance schedule
Industry Applications
Ethylene Crackers: USC/UHP furnace components
Delayed Cokers: Fractionator internals
Hydrogen Plants: Primary reformer parts
Residue Upgrading: FCC reactor hardware
Competitive Advantages
Proven track record: 500+ cracking furnace retrofits since 2010
Technical support:
Spare parts inventory management
Remaining life assessment services
Global certifications:
PED 2014/68/EU
ABS/CE approved for offshore use
Note: Ask about our Cracking Furnace Component Life Extension Program including:
In-service inspection guidelines
Field metallurgical replication services
Custom alloy development for specific feedstocks
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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