Chemical Processing
🏭 Chemical Pipe Fittings & Flow Control Components
Seamless or welded fittings (elbows, tees, reducers, flanges) per ANSI/DIN standards, ball valve stems, perforated strainer baskets, spiral wound gasket inserts, U-bolts for pipe support
What is Chemical Pipe Fittings & Flow Control Components?
🏭 Chemical Pipe Fittings & Flow Control Components represents a complete system of precision titanium components engineered for Chemical Processing applications. Seamless or welded fittings (elbows, tees, reducers, flanges) per ANSI/DIN standards, ball valve stems, perforated strainer baskets, spiral wound gasket inserts, U-bolts for pipe support The system integrates 6 distinct component types manufactured through 3 specialized processes.
Key manufacturing processes for this system include Hot forming plate rolling for valve component geometry, CNC corrosion allowance with Class 6g gauge, TIG welding Grade 2 with Class 6g gauge, Hydrostatic shell test with Class 6g gauge, Hot forming plate rolling for pipe fitting geometry, each selected and qualified to meet component-specific requirements.
Engineering & Design Principles
Material: Grade 2 (CP-Ti) is the universal standard for chemical pipe fittings due to its excellent corrosion resistance across a wide pH range, good weldability, and moderate cost. Grade 5 for valve stems requ
Form: Seamless tube for standard fittings (elbows, tees) via hot forming. Plate for flange fabrication. Bar stock for valve stems and threaded rods. All fittings must carry full material traceability.
Standards & Material Specifications
Standards: ASTM B363 / ASME SB363 Grade 2, seamless, 100% hydrostatic tested + PMI verified, MTR traceable
Engineering Solution Blueprint
Chemical Reactor Internals & Agitators
Chemical Processing · Pharmaceutical · Energy
1 Part Feature Analysis
Complex weldment assemblies — agitator shafts with impeller blades, baffle plates, dip pipes, sparge rings, distillation column trays, crystallizer scrapers, paddle dryers with ribbon flighting
- ⚠️ General corrosion from process acids (HCl, H2SO4, HNO3)
- ⚠️ Crevice corrosion under gaskets and deposits
- ⚠️ Erosion-corrosion from catalyst particles in slurry
- ⚠️ Galvanic corrosion at bi-metal weld joints
- ⚠️ Thermal cycling fatigue of thin linings
2 Material Selection Rationale
Grade 7 Ti-0.15Pd — Pd modified, strong acid resistant
Grade 7 (Ti-0.15Pd) is the preferred alloy for chemical reactor internals — the Pd addition (0.12-0.25%) shifts the corrosion potential anodically, providing resistance in reducing acid environments where Grade 2 fails. Grade 12 for higher strength in oxidizing media. Grade 5 for agitator shafts under torsion.
3 Form Selection Rationale
Seamless Tube — for fluid systems, heat exchangers
Seamless tube for dip pipes and sparge rings. Plate welding for agitator blades, baffles, and trays. Forged bar for agitator shafts.
4 Manufacturing Process & Services
Core Processes:
Toll Processing Services:
Process Pitfalls:
- ⚠️ Ti weld discoloration (blue/purple) indicates oxidation >250ppm O2 — requires argon back-purge at >20L/min
- ⚠️ Agitator shaft straightness must be <0.5mm/m to prevent bearing overload at operating RPM
5 Procurement Specifications
ASTM B265 Grade 7 / Grade 12, annealed, 100% PT of welds, hydrostatic tested, MTC per EN 10204 3.1
Manufacturing Process Flow
5-axis CNC milling centers provide simultaneous multi-axis interpolation for complex titanium components. The ability to tilt the tool relative to the
Press brake forming of titanium sheet uses CNC-controlled backgauges and variable-radius tooling to produce precision bends. Titanium's high springbac
Thread rolling cold-forms threads by displacing material between two reciprocating or rotary dies, rather than cutting it away. Compressive residual s
Components in This System
| Component | Material |
|---|---|
| Titanium Ball Valve Stem | Grade 2 CP-Ti |
| Titanium Concentric Reducer | Grade 2 CP-Ti |
| Titanium Equal Tee (ASME B16.9) | Grade 2 CP-Ti |
| Titanium Long Radius Elbow (ASME B16.9) | Grade 2 CP-Ti |
| Titanium Stub End (Lap Joint) | Grade 2 CP-Ti |
| Titanium Threaded NPT Nipple | Grade 2 CP-Ti |
Frequently Asked Questions
What titanium grades are used in Chemical Pipe Fittings & Flow Control Components systems?
What manufacturing processes are used for Chemical Pipe Fittings & Flow Control Components?
What quality standards apply to Chemical Pipe Fittings & Flow Control Components components?
What industries use Chemical Pipe Fittings & Flow Control Components?
Can you provide DFM feedback for Chemical Pipe Fittings & Flow Control Components designs?
Engineering Trends
- ▸ Process: Hot forming of seamless tube into elbows/tees
- ▸ Process: CNC machining of flange faces and bolt holes
- ▸ Process: Thread cutting/rolling for NPT connections
Related Manufacturing Capabilities
These specialized processes support Chemical Pipe Fittings & Flow Control Components component manufacturing.
One Metal. One Focus. Infinite Precision.
Founded in 2011 in Baoji's Titanium Valley, BOZE Metal is dedicated exclusively to titanium — from raw material to precision engineering. AS9100D, ISO 13485 & ISO 9001 certified with 500+ clients across Aerospace, Medical & Motorsport industries, we deliver end-to-end precision titanium CNC machining with full material traceability from source to component.
Boze CNC Ti is the dedicated titanium manufacturing center of Baoji Boze Metal Products Co., Ltd.