Zhejiang Seamless Pipe Co., Ltd.
Zhejiang Seamless Pipe Co., Ltd.
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| Attribute | Value |
|---|---|
| Material Grade | TP316L (UNS S31603) |
| Standard Specification | ASTM A213 / A269 |
| Dimensions (OD Range) | 1/4" to 2" |
| Surface Finish | Bright Annealed (BA) |
| Inspection | 100% Eddy Current Test (ET) |
| Length Availability | Max 6 meters, Custom cut lengths available |
| Material Composition | Austenitic Stainless Steel |
SMLSCO addresses procurement pain points for instrumentation tubing by providing efficient inventory solutions. We ensure TP316L instrumentation tubing delivers exceptional cleanliness and rapid delivery capabilities.
Massive Inventory, Ready Supply: Over 200 tons of TP316L precision tubing maintained in stock, covering sizes from 1/4“ to 2”.
Certified Quality, Reliable Performance: Products strictly comply with ASTM/ASME standards and PED/ISO certification requirements. We guarantee full conformity in chemical composition, mechanical properties, and dimensional tolerances.
Ultimate Cleanliness, Stable Performance: Bright annealed (BA) process ensures clean inner and outer surfaces free of oxide layers, meeting requirements for high-purity fluid or gas transmission.
Efficient Delivery, Rapid Response: SMLSCO operates an optimized supply chain and proprietary logistics system. We guarantee expedited shipping within 14 days for standard stock specifications. All inquiries receive a response within 15 hours.
Core Process: Bright Annealing (BA) with High-Standard Inspection
Instrument tubing demands exceptional inner surface cleanliness. SMLSCO's TP316L tubes undergo either online or offline bright annealing (BA). Heat treatment is performed in a protective gas environment, effectively preventing oxide scale formation common in standard annealing. This results in a silvery-white, smooth finish on both inner and outer surfaces, eliminating the need for subsequent acid pickling. Additionally, every tube undergoes 100% eddy current testing (ET). We guarantee zero-defect delivery, ensuring perfect compatibility with precision instrumentation and fluid control systems.
SMLSCO's Rigorous Three-Step Inspection Process
We are committed to delivering high-quality products our customers can trust. For TP316L gauge tubes, we enforce a strict “three-step inspection”:
ASTM A213 TP316L seamless instrument tubing offers exceptional corrosion resistance and high purity. It is widely used in medium-to-large industrial projects with stringent pipeline system requirements.
Typical applications include:
Q1: What are the key advantages of SMLSCO's TP316L instrumentation tubing?
A1: Our core strengths lie in “inventory” and “quality.” We maintain over 200 tons of stock, enabling rapid delivery of standard sizes within two weeks. Products undergo BA bright annealing and 100% eddy current testing to ensure high purity and zero defects.
Q2: What is BA bright annealing? Why is it important for instrumentation tubing?
A2: Bright Annealing (BA) is a heat treatment performed in a protective gas environment (e.g., hydrogen). It eliminates internal stresses, enhances mechanical properties, and prevents surface oxidation. This is critical for gauge tubing as it ensures a highly clean inner surface, preventing contaminants from entering sensitive instruments or systems.
Q3: How does SMLSCO ensure dimensional accuracy and tolerances for thin-walled gauge tubing?
A3: Our TP316L gauge tubes undergo strict process control during cold drawing and sizing. We adhere to the precise tolerance requirements of ASTM A213/A269. Prior to shipment, every tube undergoes 100% dimensional reinspection using precision gauges, with recorded data archived. This ensures customers receive products fully compliant with technical specifications.