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To meet stringent requirements for appearance and corrosion resistance in instrumentation tubing, SMLSCO employs an advanced bright annealing process. The tubing undergoes heat treatment within a sealed, protective gas furnace, preventing surface scale formation and imparting a natural, silver-bright metallic lustre that eliminates the need for pickling. This process significantly reduces fluid resistance and residual risks while eliminating work hardening, ensuring excellent bending and flaring properties for easy on-site installation.
Product Advantages
Precision Tolerances, Universal Compatibility: Manufactured via cold rolling with strictly controlled outer diameter and wall thickness tolerances. Outstanding roundness and dimensional consistency guarantee no gas or liquid leakage in demanding high-pressure transmission systems.
Rapid Stock Availability and Responsive Service: SMLSCO maintains over 200 tonnes of bright annealed and polished instrumentation tubing in stock, covering common specifications from 6mm to 50.8mm. We commit to sorting and dispatching standard stock orders within two weeks for swift response to urgent projects.
High Purity, Oil-Free Delivery: All tubing undergoes ultrasonic cleaning and passivation to ensure dry, oil-free inner walls, complemented by 100% eddy current testing. Products are ready for immediate use in hydraulic systems upon delivery, eliminating the need for secondary cleaning.
Packaging Methods
Stainless steel gauge tubing features thin walls and bright surface finishes, making it susceptible to scratches during transit. SMLSCO implements stringent export-grade packaging standards. Following final inspection, each tube is individually bagged with end caps fitted to protect threaded or beveled ends. Tubes are securely stowed within reinforced wooden crates, ensuring they arrive pristine and fully functional despite extended sea voyages and multiple transhipments.
Frequently Asked Questions
Q1: What is the hardness of this seamless tube? Is it suitable for bending and flaring?
A1: Absolutely suitable. SMLSCO's instrumentation tubing undergoes rigorous bright annealing, with hardness controlled below HRB 90 (or HV 200). This controlled soft state facilitates cold bending and flaring operations on-site without cracking, while ensuring perfect engagement with standard double ferrule fittings for zero-leak sealing under high pressure.
Q2: What distinguishes Bright Annealed (BA) from Acid Pickled (AP) surfaces? Which should I select?
A2: BA (Bright Annealed) features a highly lustrous surface with an exceptionally smooth inner wall, free from pickling residues. It is the preferred choice for instrumentation tubing and high-purity systems. AP (Pickled) surfaces exhibit a matt silver-white finish, better suited for general fluid conveyance. For precision instrumentation tubing inventory, we strongly recommend selecting the bright surface finish.
Q4: As a stockist, may I purchase mixed specifications? Or must orders be placed in full bundles?
A4: We fully accommodate stockists' procurement models. Leveraging SMLSCO's extensive stock warehouse, you need not purchase entire bundles of a single specification. We support 'mixed-length consolidated shipments', enabling you to combine multiple O.D. and wall thicknesses of instrumentation tubing, or even bundle fittings for dispatch. This maximises flexibility and minimises procurement barriers.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2006
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Zhejiang seamless pipe co.,ltd. (SMLSCO) is a specialized stainless steel piping systems provider with 19 years of industry experience. We began by supplying cost-effective stainless steel seamless pipes but for now, Smlsco is more than pipes.
With 19 years of growth, we have establis... Zhejiang seamless pipe co.,ltd. (SMLSCO) is a specialized stainless steel piping systems provider with 19 years of industry experience. We began by supplying cost-effective stainless steel seamless pipes but for now, Smlsco is more than pipes.
With 19 years of growth, we have establis...
